Спутник ДЗЗ. Bilsat-1. [Редактировать]

Основное назначение «BilSat-1» - мониторинг земной поверхности в хозяйственных целях и для предупреждения природных и техногенных катастроф, а также - телекоммуникации. «BilSat-1» - первый МКА ДЗЗ, разработанный и изготовленный турецкими специалистами научно-исследовательского института электронной техники BILTEN (Turkish Institute for Electronic Research and Scientific Technology) и научно-исследовательского центра (Turkish Centre for Scientific Research) в рамках программы BILTEN по развитию производства в Турции собственных МКА. Часть оборудования была создана совместно с английской компанией Surrey Satellite Technologies, в дальнейшем предполагается участие только турецких специалистов на всех этапах реализации проекта. Турция уже имеет три спутника, которые были созданы французской компанией Aerospatiale и выведены на орбиту при помощи европейского носителя Ariane.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
127943НайтиНайти
2Bilsat 1НайтиНайти
3BILSatНайтиНайти
4BILTEN SatellteНайтиНайти

Дополнительная классификация

#Наименования
1Тип орбиты - НОО
2Страна производитель - Великобритания
3Тип оператора(владельца) - государственный
4Страна оператор(владелец) - Турция
5Все спутники ДЗЗ

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг130
2Масса (сухая), кг.110
3Пространственное разрешение в надире (панхроматический), м4
4Пространственное разрешение в надире (мультиспектр), м26
5Полоса захвата (панхроматический), км300
6Полоса захвата (мультиспектральный), км300
7Полезная нагрузка 1xPanCam
8Полезная нагрузка 1xMSIS
9Полезная нагрузка 1xCOBAN

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град97.8
2Апогей, км695.5
3Перигей, км681.2
4Период, минут98.4
5Длинный диаметр эллипса, км7059

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2003-042E

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость (аппарат), млн. долл.14

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2003-09-27 at 06:12:00 UTC
2Полезная нагрузка 1xMozhayets 4
3Полезная нагрузка 1xRubin 4
4Полезная нагрузка 1xNigeriaSat-1
5Полезная нагрузка 1xBNSCSAT
6Полезная нагрузка 1xBilsat-1
7Полезная нагрузка 1xLarets
8Полезная нагрузка 1xKaistsat 4
9Ракета-носитель 1xКосмос

Найдено 266 документов по запросу «Bilsat-1». [Перейти к поиску]


Дата загрузки: 2016-12-08
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0.13/5
SSC03-VI-4 BILSAT: ADVANCING SMALLSAT CAPABILITIES 1 2 1 1 Luís M Gomes , ... to the point where the BILSAT 120kg spacecraft will this year..., and vegetation, for example. The BILSAT-1 microsatellite is scheduled for launch... Constellation (DMC). This will give BILSAT-1 an average orbit period of... of four passes per day. BILSAT will also accommodate a store and... satellite. The main mission of BILSAT-1 is remote sensing, comprising two... pointing capability is illustrated in 2 BILSAT-1 (previously known as BILTENSAT-1) is... different angles, which will give BILSAT-1 a stereoscopic imaging capability. Using this... first five years of the BILSAT-1 mission. Apart from constructing a DEM... Figure 2 - Simplified block diagram of Bilsat-1 GPS Rate Sensor I/F The spacecraft... Block Diagram of BILSAT-1 The reaction wheels of BILSAT-1 are arranged in... determination and control subsystem of BILSAT-1 features a suite of sensors comprising... perform semi major axis corrections ★ ✩ ✪✫ ✬✭ ✮ ✯ ✰✭✱ ✪ BILSAT also has a propulsion system that... solution for a small satellite like BILSAT-1 Torque rods are used during... reason, the gyro assembly on BILSAT is particularly important during stereoscopic... suited as a backup/emergency system. 7 BILSAT-1 is a challenging satellite in that... CAN network. 6 STRUCTURE Figure 12: BILSAT-1 Spacecraft undergoing Electromagnetic Compatibility tests... SYSTEM The communication system of Bilsat-1 is a hybrid system, featuring a UHF... 13: Annotated Interior View of BILSAT-1 Spacecraft 6 17th AIAA / USU Conference... the interior of the satellite. 8 BILSAT-1 includes a 2-Control Moment Gyro (CMG... instance, the CMG used on BILSAT-1 will allow a slew of 40.... Two imagers are included on Bilsat-1: • Pan-chromatic imager • Multispectral imager... Satellites The CMGs designed for BILSAT-1 are based on COTS motors... are being made on the BILSAT-1 spacecraft. It is envisaged, after... design requirement for designing the BILSAT-1 CMG experimental payload is the... accomplished as expected. For the BILSAT satellite (Table 2) a 40º manoeuvre in... by Turkish engineers and researchers. BILSAT-1 will have only the most... to optimise the satellite’s performance. BILSAT-1 is controlled from a ground station... the spacecraft. 11 12 The BILSAT-1 Mission and spacecraft represent one... OPERATIONS The operations concept of Bilsat-1 follows the same strategy used... of malfunction of the satellite, BILSAT-1 will revert to a safe mode... the staffing level required. For BILSAT-1, the operators will only be...



Дата загрузки: 2016-12-25
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0.2/5
...ğurmuştur. Türkiye 2003 yılında Bilsat projesi ile yer gözlem uydu...ünün inovatif etkilerine bağlıdır. Anahtar kelimeler: Bilsat, Rasat, Göktürk-2, Yer gözlem... Bilsat project in 2003. Based on the experience gained from the Bilsat... experience and the observations. Keywords: Bilsat, Rasat, Göktürk-2, Earth observation... çalışmaların sonucunda, 2003 yılında Bilsat projesi ile yer gözlem uydu... yönetilmesi sorumluluğunu üstlenmiştir. Bilsat Projesi’nden kazanılan tecr... üretilebileceği görülmektedir. Bu çalışmada Bilsat, Rasat ve Göktürk-2 uydu...ülerinden yararlanma olanakları irdelenmiştir. 2. Bilsat Uydusu Türkiye Bilimsel ve Teknolojik..., 2015a). Bilsat Türkiye’nin ilk yapay yer gözlem uydusudur (Şekil 3). Bilsat projesinin... beklentiler arasındaydı. 101 Şekil 3. Bilsat uydusu (SSTL, 2015a) Ayrıca... yapılabilmesinin temelleri atılmıştı. Bilsat projesi ile ilgili çalışmalar...ı yapan bir görüntü işlemcisiydi (Çizelge 1). Bilsat uydusunun aktif görevi 2006 yılının Ağustos... uzaya fırlatılmıştır (TÜBİTAK, 2015b). Bilsat uydusunda kazanılan bilgi ve...ş özellikler gösteren Rasat üzerindeki Gezgin-2, Bilsat projesinde kullanılan Gezgin görünt... aktif görevine devam etmektedir. Çizelge 1. Bilsat uydusunun teknik özellikleri (Yener vd... giderilmesi hedeflenmiştir (TUSAŞ, 2015a). Bilsat ve Rasat uydu sistemlerinde kazan... ormancılık uygulamalarında kullanılabilirliği Bilsat uydu projesinin esas amacı uydu... gereksinimlerinin belirlenmesiydi. Bu bağlamda Bilsat uydusu ticari bir durum içermedi...ıyla tamamlamış olarak değerlendirilebilir. Bilsat, Rasat ve Göktürk-2’nin...ılayabildikleri görülmekle birlikte bant sayısının Bilsat ve Rasat’ta daha az... üretimi ve işletilmesi aşamalarında Bilsat projesi ile kazanılan bilgi...ın giderilmesi gibi konular bulunmaktadır. Şekil 6. Bilsat, Rasat ve Göktürk-2’nin..., 17(1): 99-107 105 Şekil 7. Bilsat, Rasat ve Göktürk-2’nin....05.2015. İslamoğlu, N., 2014. Bilsat ve Rasat Uydu Projeleri. Yer..., Frascati, Italy. 107 SSTL, 2015a. Bilsat-1 projesi. Surrey Satellite Technology Limited.../ bilsat-1--launched-2003, Erişim: 30.05.2015. SSTL, 2015b. Bilsat-1 görevi....sst-us.com/missions/ bilsat-1--launched-2003/bilsat-1/bilsat-1--the-mission, Erişim...: 01.06.2015. TÜBİTAK, 2015a. Bilsat projesi. Türkiye Bilimsel ve Teknolojik....gov.tr/ tr/uydu-uzay/bilsat, Erişim: 30.05.2015...



Дата загрузки: 2017-01-23
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0.16/5
... Matlab and Simulink software and BILSAT-1 parameters are used in the.... Keywords: Attitude Control, Satellite, LEO, BILSAT-1 iv ÖZ ALÇAK YÖRÜNGE UYDULARI...ılımları ile yapılmış olup BILSAT-1 uydusunun parametreleri uygulanmıştır. Tetikleyici olarak...: Davranış Denetimi, Uydu, Düşük Yörünge Uydusu, BILSAT-1 v ACKNOWLEDGEMENTS The author wishes to... CHAPTER 1)- INTRODUCTION 1.1 Background.............………………………….…………………....…………. 1 1.2 Literature Survey..…..................…………………………………...……….. 2 1.3 BILSAT-1…………………………………….…………………....…………. 2 1.4 This Report..................................…………………………………...……….. 5 1.5 Contributions Of This........................…………………………………………………...……….. 6 CHAPTER 2)- SENSORS AND ACTUATORS OF BILSAT-1 2.1 Sensors….....………………………………….…………………....…………. 8 2.1.1 Sun Sensor…...…………….……….………………….……………. 8 2.1.2 Magnetometer….………….………….………….………..………… 8 2.1.3 Star... Taken From Tübitak-Bilten For BILSAT-1…….... 62 CHAPTER 7)- CONCLUSIONS AND FUTURE... system response……………....……......................….35 Table – 6.1 General BILSAT-1 parameters……………………........................… 48 Table – 6.2 Simulation parameters... and command table for the BILSAT-1...................................… 62 Table – 7.1 Simulation result of... team of BILSAT-1 …..........................................................3 Figure – 1.2 General view of BILSAT-1……………...………………………… 3 Figure – 1.3 BILSAT-1 was launched in Russia ….…………………...………... 3 Figure – 1.4 Block diagram of BILSAT-1…..……..……….........……………… 4 Figure – 1.5 Block diagram of ADCS .................................................................... 4 Figure – 1.6 Image of BILSAT-1 from... of BILSAT-1 ……………………… 62 Figure – 6.27 Actual pitch axis maneuver of BILSAT-1 (Zoomed... and added as payload to BILSAT-1 by BILTEN. DEM Digital Elevation... information about BILSAT-1 satellite are briefly introduced. Properties of BILSAT-1 project are... of a satellite is derived, and BILSAT-1’s parameters are used in this... attitude determination of the satellites. 1.3 BILSAT-1 BILSAT-1 is the first Low Earth... of Turkey (TUBITAK-BILTEN). The BILSAT-1 microsatellite was launched from Russia... the main mission of the BILSAT-1. To prepare a Digital Elevation Map...-1.1: Project team of BILSAT-1 Figure-1.2: General view of BILSAT-1 Figure-1.3: BILSAT-1 was launched... remote sensing. For this aim BILSAT-1 uses two imagers, Pan-chromatic... constitute the communication unit of BILSAT-1. On-Board Computers (OBC) unit... supply the needed power of BILSAT-1. To connect different subsystems of... used. Figure-1.4: Block diagram of BILSAT-1 Figure-1.5: Block diagram of ADCS... the urban areas and vegetation. BILSAT-1 also accommodates a store and forward... BILSAT-1 from Manyas Lake, Ulubat Lake Bandirma Turkey Further information on BILSAT... methods which are suitable for BILSAT-1 are studied. Applications of nonlinear... the BILSAT-1 satellite using reaction wheels. 5 1.6 Outline of the Thesis BILSAT-1 uses... simulation results are given using BILSAT-1 parameters. For future work, some... and ACTUATORS of BILSAT-1 The attitude determination subsystem of BILSAT-1 is composed... are the reference sensors of BILSAT-1. Inertial sensors measure rotational and... the Earth. Rate sensors of BILSAT-1 are known as inertial sensors... inertia matrix reduces to: I  x I=0   0  0 I y 0 0  0   I  z (3.37) BILSAT-1 inertia matrix parameters are Ixx... of BILSAT-1. In this thesis we are interested in maneuver of BILSAT... ignored in our simulations for BILSAT-1. The surface area of the... In our simulations for the BILSAT-1, dimension of the controller output... Wheels The reaction wheels of BILSAT-1 are arranged in a tetrahedral configuration... V ( x ) > 0 ∀x ≠ 0 , inertial constraint required is I x > I y > I z . In BILSAT-1 this constraint is not satisfied... Matlab and Simulink software. General BILSAT-1 parameters which are used in... Weight Inertia Moment Table-6.1: General BILSAT-1 parameters Value 120 kg I x = 9.8194... controller is investigated for the BILSAT-1 satellite. Reaction wheels are considered... regulator is investigated for the BILSAT-1 satellite. Reaction wheels are considered... BILSAT-1 We used the actual results taken from Tübitak-Bilten for BILSAT... results with actual response of BILSAT-1. Data taken from Tübitak-Bilten... in table 6.4 obtained response of BILSAT-1 is given in figure 6.26...: Actual pitch axis maneuver of BILSAT-1 62 Pitch=+30o degree command...: Actual pitch axis maneuver of BILSAT-1 (Zoomed) 63 CHAPTER 7 CONCLUSIONS and... of a satellite is derived and BILSAT-1’s parameters are applied in the... TübitakBilten for BILSAT-1 in pitch direction with our results. BILSAT-1 reaches to... 12e-4 0.04 orbits 0.07 orbits BILSAT-1 Not applicable* 0.06 orbits 0.12....metu.edu.tr/bilsat [2] L.M. Gomes, G. Yuksel, A.S. Curiel, A. Bradford, M. Sweeting. BILSAT: Advancing Small... to setup the MATLAB/Simulink BILSAT-1 reaction wheel simulation %For linear... = 0.2892; Izy = 0.1011; Izz = 9.7309; %BILSAT-1 inertia matrix InertialMatrix=[Ixx 0 0; 0 Iyy...



Дата загрузки: 2017-01-23
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0.19/5
... me access to the extraordinary BiLSAT and GOSAT twin data sets... .................................................................................................. 31 3. MAIN STUDY: CREATIVITY IN BiLSAT AND GOSAT ................................... 33 3.1 Method ....................................................................................................... 33.... BiLSAT wave.......................................... 34 3.1.2.1 Measurement point 2: GOSAT ...................................................... 35 3.1.2.3 Measurement point 3: III. BiLSAT wave... in BiLSAT and GOSAT 33 3. Main study: Creativity in BiLSAT and GOSAT... (BiLSAT) and the German Observational Study of Adult Twins (GOSAT). The BiLSAT... surveyed three times by mail (BiLSAT), and a subsample of 300 twin... study draws on data from BiLSAT waves II. and III. as... used in it, since (a) the BiLSAT sample size changed over time... effects, Main study: Creativity in BiLSAT and GOSAT 34 therefore only... all measures. 3.1.2.1 Measurement point 1: II. BiLSAT wave In 1995, a battery of... study: Main study: Creativity in BiLSAT and GOSAT 35 EPQ-RK... between 1995 and 1997, 300 BiLSAT twin pairs were studied, pair... version. Main study: Creativity in BiLSAT and GOSAT 36 LPS-K: The... and Main study: Creativity in BiLSAT and GOSAT 37 the video... reported below. 3.1.2.3 Measurement point 3: III. BiLSAT wave Paralleling the procedure of... items. Main study: Creativity in BiLSAT and GOSAT 38 3.1.3 Zygosity determination... of the remaining GOSAT and BiLSAT pairs was based on questionnaire...), N = 828. Main study: Creativity in BiLSAT and GOSAT 39 Table 8 Pearson... comparisons Main study: Creativity in BiLSAT and GOSAT 40 underpin optimism... correlation. Main study: Creativity in BiLSAT and GOSAT 41 Table 10... distribution. Main study: Creativity in BiLSAT and GOSAT 42 3.2.2 Aggregation of... core Main study: Creativity in BiLSAT and GOSAT 43 sample. Differences..., N = 287. Main study: Creativity in BiLSAT and GOSAT 44 For further... factor. Main study: Creativity in BiLSAT and GOSAT 45 Table 14... Factor 2 Main study: Creativity in BiLSAT and GOSAT 46 3.2.3 Age and..., 1967). Main study: Creativity in BiLSAT and GOSAT 47 Table 16... overlapping Main study: Creativity in BiLSAT and GOSAT 48 Table 17... decreased Main study: Creativity in BiLSAT and GOSAT 49 for gf... just Main study: Creativity in BiLSAT and GOSAT 50 based on... in BiLSAT and GOSAT 51 Main study: Creativity in BiLSAT and GOSAT... the Main study: Creativity in BiLSAT and GOSAT 53 entering of..., N = 279 Main study: Creativity in BiLSAT and GOSAT 54 The variance... 21. Main study: Creativity in BiLSAT and GOSAT 55 Table 22... variance. Main study: Creativity in BiLSAT and GOSAT 56 Figure 5 Results... p > .10). Main study: Creativity in BiLSAT and GOSAT 57 3.4.2.4 The structure... significantly Main study: Creativity in BiLSAT and GOSAT 58 different from..., N = 267). Main study: Creativity in BiLSAT and GOSAT 59 Table 25... originality Main study: Creativity in BiLSAT and GOSAT 60 3.2.5 Genetic and... environment. Main study: Creativity in BiLSAT and GOSAT 61 Table 26..., & gc. Main study: Creativity in BiLSAT and GOSAT 62 Effects of... be Main study: Creativity in BiLSAT and GOSAT 63 interpreted as...** p (df = 2) Main study: Creativity in BiLSAT and GOSAT 64 223 223... in BiLSAT and GOSAT 65 Main study: Creativity in BiLSAT and GOSAT... gc. Main study: Creativity in BiLSAT and GOSAT 67 Table 29..., & gc. Main study: Creativity in BiLSAT and GOSAT 68 The surprising... in BiLSAT and GOSAT 69 Main study: Creativity in BiLSAT and GOSAT...) (df = 6 / 3) E Main study: Creativity in BiLSAT and GOSAT 71 - .45 .27... in BiLSAT and GOSAT 72 Main study: Creativity in BiLSAT and GOSAT... controlled. Main study: Creativity in BiLSAT and GOSAT 74 3.3 Discussion Supporting... fluid Main study: Creativity in BiLSAT and GOSAT 75 intelligence was... is Main study: Creativity in BiLSAT and GOSAT 76 only able... with Main study: Creativity in BiLSAT and GOSAT 77 negative results... gene Main study: Creativity in BiLSAT and GOSAT 78 x non-shared... controlling Main study: Creativity in BiLSAT and GOSAT 79 for general... to Main study: Creativity in BiLSAT and GOSAT 80 the T-88... Longitudinal Study of Adult Twins (BiLSAT). Talk given at the 11th...



Дата загрузки: 2017-06-14
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0.1/5
SSC04-IX-3 BILSAT-1: First Year in Orbit- Operations ... www.bilten.metu.edu.tr/bilsat 2 SURREY SATELLITE TECHNOLOGY LIMITED SURREY... www.sstl.co.uk ABSTRACT BILSAT-1 is an enhanced micro satellite..., BILSAT addresses similar applications, with an emphasis on temporal resolution. BILSAT is... a phase angle of 90 degrees. BILSAT as well as other DMC... first half of February, 2004. BILSAT also accommodates some experimental payloads... well as these experimental payloads, BILSAT also hosts some new technologies..., commissioning and during operations of BILSAT-1. It will detail the experiences... conference on small satellites 1. Overview BILSAT-1 is an earth observation satellite... the ground target revisit time[1]. BILSAT-1 was launched via a COSMOS 3M... vehicle and ready for launch. BILSAT-1 satellite took place on the...:0PM near sun synchronous orbit. BILSAT-1; the first earth observation satellite... Plesetsk The communication system of BILSAT-1 is a hybrid system, featuring a UHF... are also present on board BILSAT-1. BILSAT-1, also accommodates various experimental payloads..., Core Module Commisioning and After BILSAT-1 together with UK-DMC and... September. Following the Y-Thomson orientation,BILSAT-1 was succesfully placed to nadir..., After a successful launch on 27th, BILSAT-1 was delivered to orbit with... 2083 seconds after launch. The BILSAT-1 transmitters are designed so that... placed evenly on the orbit. BILSAT Figure 3: Initial Telemetry frame received.... When the spin rate of BILSAT-1 was reduced to <3°/s, the spacecraft... The “EYES” of BILSAT Are On Earth Once BILSAT-1 was injected into... obviously was a great excitement among BILSAT team. A number of images were... storage area of the raw BILSAT-1 images and when a new image.... (right and top edges) Once BILSAT-1 was operational the first target... images over Turkey were cloudy. BILSAT team is hoping to take... (Mediterranean coast of Turkey) Since BILSAT-1 has a 2048x2048 pixel CCD array... the rotation of the earth. BILSAT-1 is also a member of an... four satellites in this constellation. BILSAT-1 was the first to take... X axis. 4. Experimenting With The Payloads BILSAT-1 accommodates two experimental Turkish payloads... flooded region was imaged by BILSAT MSI system th on May... time image compression system GEZGIN BILSAT-1 has a total access time of... images up to a few hundred BILSAT-1 is a three axis controlled satellite... see an image taken by BILSAT MSI system (no compression). One... it tracks satellites other than BILSAT from time to time, so... enough time to freeze again. BILSAT-1 has two 80386 processor based... box of the dish antenna. BILSAT team is trying to improve... incorporating the star cameras of BILSAT. Also SSDR (solid state data... instant that image is taken. BILSAT-1 has two VHF receivers and... operations have been gained by BILSAT team which will form a precious... [1] IAC-02-IAA.11.3.02 - BILSAT-1 - A LOW COST AGILE MICROSATELLITE FOR..., October 2002 [2] IAC-02-P.1.01 BILSAT-1: A Case Study For The Surrey... Sweeting -October 2002 [3] SSC03-VI-4 BILSAT: Advancing Smallsat Capabilities – AIAA/USU... Bradford, Prof Sir Martin Sweeting [4] BILSAT-1: Power Systems Sizing and Design... Yüksel, Luis M. Gomes, Kevin Hall [5] BILSAT-1 Communication Subsystem, - International Conference on...



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0.21/5
..., Landsat 7 ETM, Spot 4 (level 1B), Bilsat ve Ikonos) bilgi içerikleri ormanc...ştırılmıştır. 4 bit radyometrik çözünürlüğe sahip Bilsat uydu verisinin bilgi içeriğinin... olduğu düşük radyometri özelliğinden dolayı Bilsat görüntü verisinden yeterli sonuç al... Landsat 5 TM, Landsat 7 ETM, Spot 4, Bilsat görüntü verilerinin sınıflandırma genel... 5 TM, Landsat 7 ETM, Spot 4 (level 1 B), Bilsat and Ikonos) belonging to forest... the information content of the Bilsat satellite data which has 4 bit... result hasn’t been obtained from Bilsat image data. Controlled classification has... 5 TM, Landsat 7 ETM, Spot 4 and Bilsat image data belonging to the... GSD Landsat 7 MSS, 30m GSD Bilsat, 27.6m GSD Landsat 7 Pan... detay ayrımı Bilsat görüntü verisine göre daha fazladır. Bunun nedeni, Bilsat görüntü verisi radyometrik bozukluğundan kaynaklanmaktadır. Ayrıca bilsat görünt... alanlarına ilişkin detayların Bilsat görüntü verisi üzerinden ayırt..., Landsat 7 MSS, Landsat 7 Pan, Spot 4, Bilsat görüntüleri üzerinden elle vekt... olarak üretilip 8 bite örneklenerek sunulan Bilsat görüntü verisi üzerinden yola ili... son derece zorluk yaşanmıştır. Bilsat görüntüsünün 4 bitlik radyometrik çözünürlüğünün sınırlay... vektörleşme işleminde de bilsat görüntü verisinin radyometrisinden kaynaklanan kısıtlamalar...şık aynı nitelikte sonuç vermiştir. Bilsat görüntü verisi üzerinden açık alanlar ile... ORUÇ Landsat 5 TM Landsat 7 ETM Bilsat Spot Şekil 3. Uydu görüntüleri... 100 Üretici Doğruluğu (%) 100 Bilsat Kullanıcı Doğruluğu (%) 100 Spot...ıcı doğruluğu en düşük görüntü ise Bilsat görüntü verisi olmuştur ki...ğerlerine bakıldığında ise Bilsat görüntüsüne ait sınıflandırma...ğruluk (%) Landsat 5 TM Landsat 7 ETM Bilsat Spot 4 83 86 69 82...



Дата загрузки: 2017-04-09
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0.07/5
... on the manufacture of the BILSAT reconnaissance satellite in 2003. Turkey... less than 500 kg. The BILSAT’s design was based on an... by the onboard cameras. The BILSAT was launched on 27 September...-Plots-PathToward-Space-Command. 19 BILSAT-1: The Mission, Surrey Satellite Technology....sstl.co.uk/Missions/BILSAT-1--Launched-2003/BILSAT-1/BILSAT-1--The-Mission. 20 Ibid... from Surrey Ltd. for the BILSAT - and its subsystems. The satellite... same flight computer as the BILSAT. Based on this design, TUBITAK... the technology transfer of the BILSAT project, combined with the infrastructure... its efforts on the RASAT, BILSAT, and Gokturk-2, Turkey turned to... example, weighs 400 kg. The BILSAT weighed 130 kg. It is... the experience gained from the BILSAT, RASAT, and Gokturk programs. Turkey...



Дата загрузки: 2017-03-10
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0.13/5
... be similar to the actual BILSAT-1 satellite parameters. In conclusion, simulations... time with that obtained from BILSAT-1 satellite log data. Key Words... uydu modelinin özellikleri gerçek BILSAT-1 uydu parametreleri ile benzer olacak................................................................................................ 1 1.1 Low Earth Orbit Satellites and BILSAT-1 Attitude Determination and Control Subsystem... Their Technical Properties .............................. 54 Table 4.1: BILSAT-1 Satellite Properties.............................................................. 98 Table 4.2 : Initial.............................................................. 102 Table 4.3 : Command Table for BILSAT-1........................................................... 113 Table 4.4 : Initial Values of... xiv LIST OF FIGURES Figure 1.1 : BILSAT Satellite Launched on Sept. 27... ................................... 2 Figure 1.2 : ADCS Block Diagram of BILSAT-1 ................................................. 4 Figure 1.3 : Four Wheels in a Tetrahedral... describes the Low_Earth Orbit satellites. BILSAT-1 satellite and its attitude determination.... 1.1 Low-Earth Orbit Satellites and BILSAT-1 Attitude Determination and Control Subsystem... have started the microsatellite project, BILSAT-1, in August 2001 in order... in-orbit operation 1 for Turkey. BILSAT-1 was manufactured within a Know–How... Russia on September 27, 2003. BILSAT-1 is an Earth observation satellite... time at any given latitude. BILSAT-1 has an average orbit period... minutes each during the day. BILSAT-1 is followed up succesfully via... control station at TUBITAK-BILTEN. BILSAT-1 is a member of DMC (Disaster... per day. Figure 1.1 shows BILSAT-1 microsatellite. Figure 1.1: BILSAT-1 Satellite Launched on Sept... taken from the BILSAT-1, the ADCS subsystem of BILSAT-1 is explained briefly... determination and control subsystem of BILSAT-1 is composed of four sun... according to BILSAT-1 mission requirements. The reaction wheels of BILSAT-1 are arranged... 1.3 [1], [2], [3]. 3 Figure 1.2 : ADCS Block Diagram of BILSAT-1. Reaction Wheels Reaction Wheels Figure... values. To perform orbital maneuvers, BILSAT has a propulsion system which is... reason, the rate gyros on BILSAT-1 are particularly important during stereoscopic... B. For more information on the BILSAT-1, see References [1], [2], [3]. 1.2 Previous Background This...ş [26] and simulations taken from BILSAT-1 ground station. The satellite parameters... actual BILSAT-1 satellite platform and are also used in simulations. BILSAT-1 attitude... or satellite model similar to BILSAT-1 environment. Lastly, it is worth...-Weitzmann 6 m deployable boom used in BILSAT-1. Figure 2.35: SSTL-Weitzmann 6 m. Deployable... and determination components applied in BILSAT-1 project are given in Appendix... the attitude is introduced . For BILSAT-1 model the roll, yaw, pitch... diagonal matrix and defined by I. BILSAT-1 inertia matrix parameters are given... the simulation model of the BILSAT-1. The effects of gravity gradient... at the simulation stage since BILSAT-1 has an altitude of 686... finally, c g is center of gravity. BILSAT-1 satellite is affected by the... disturbing torques (3.35a) Bb In BILSAT-1 , the values given to parameters.... 76 In some satellites, like BILSAT-1, there are three angles to... BILSAT-1. BILSAT-1 actual satellite properties are given in Table 4.1. Table 4.1: BILSAT-1 Satellite Properties BILSAT...,p4, p6 The values of BILSAT-1 inertia matrix is given as... taken from Tübitak-Bilten for BILSAT-1 are shown below. Table 4.3 lists.... 112 Table 4.3: Command Table for BILSAT-1. 20 March 2006 02:22... The pitch angle response of BILSAT-1 is shown in Figure 4.13... this real time response from BILSAT-1 is similar to the one... is modified according to the BILSAT-1 satellite parameters. Linear attitude control... control. Simulations are done using BILSAT-1 dynamic model, and for different... from BILSAT-1 log data, the rise time (0.06 orbit time for BILSAT... time (nearly 0.1 orbit time for BILSAT-1 simulations and 0.08 orbit time... Regulator 0.04 0.07 2e-4/-4e-4 BILSAT-1 0.04 0.14 ** *Control methods applied... [26] **The torque values of BILSAT-1 log data are not comparable... to the one used in BILSAT-1 (rather than the method used... simulations with those obtained from BILSAT-1 log data. Also, in this... Yüksel, Prof. Sir Martin N. Sweeting, “BILSAT-1: A Case Study For the Survey... Bradford, Prof. Sir Martin Sweeting, “BILSAT-1: Advancing Small-Sat Capabilities”, SS... University, 1993. [26] Karataş Soner, “BILSAT-1: Attitude Dynamics and Some Nonlinear... about the input axis. In BILSAT, control moment gyros are used... B DATASHEETS OF SOME OF THE BILSAT-1’S ADCS COMPONENTS In this section...



Дата загрузки: 2016-11-27
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0.23/5
... Bu çalışmada, çok-bantlı Bilsat–1 görüntüleri için geliştirilmi... göre, yana bakış açısıyla çekilen Bilsat–1 görüntülerinde, fotogrametrik modele self...-Kalibrasyon, Ortorektifikasyon, Bilsat–1. ABSTRACT SELF-CALIBRATION AND ORTHORECTIFICATION OF BILSAT–1 XS IMAGERY... the orthoimages generated from the Bilsat–1 XS images using the developed... is more important for the Bilsat–1 XS images that were acquired..., Remote Sensing, Self-Calibration, Orthorectification, Bilsat–1. 1. GİRİŞ Bilsat–1 uydusu, 27 Eylül 2003 yılında...ır (Yuksel vd., 2004). Ayrıca, Bilsat–1 uydusu üç eksende kontrol mekanizması sayesinde... görüntüleyebilmektedir. Diğer taraftan, Bilsat–1 uydusu beş küçük uydudan ve çeşitli.... Bu çalışmada, çok-bantlı Bilsat–1 görüntüleri için geliştirilmi... edilmiştir. Geliştirilen model Bilsat-1’in görüntü çekim tekniğini... olarak anlaşılabilmesi amacıyla, Bilsat–1 görüntüleri önce self-kalibrasyon...ği tespit edilmiştir. Çok Bantlı Bilsat–1 Görüntülerinin Self Kalibrasyonu Ve... bilgisi elde etmek amacıyla, Bilsat–1 uydusu platformunda dört adet güne...ığı kuşkusu oluşmuştur. Bilsat–1 uydusunun çok bantlı görüntüleme...ğildir. Yukarıdaki bilgiler ışığında, Bilsat–1 algılayıcılarından yüksek..., dış yöneltme bilgisi beklenmemelidir. Bu nedenle, Bilsat–1 uydusunun görüntü çekim anındaki... verilerle karşılaştırılabilecek ve Bilsat–1 uydusundan elde edilebilecek direkt geometrik.... Yukarıda da belirtildiği üzere, Bilsat–1 çok bantlı görüntüleme kameralar... bu çalışmada, çok-bantlı Bilsat–1 görüntüleri öncelikle self-kalibrasyon... tespit edilmiştir. Çok Bantlı Bilsat–1 Görüntülerinin Self Kalibrasyonu Ve... yapılmıştır. Geliştirilen program Bilsat–1 uydusunun algılayıcıları için...İLER 4.1 Çok-Bantlı Bilsat–1 Görüntü Verileri Çok-bantlı Bilsat–1 görüntülerinin ortorektifikasyon... 1). Test alanları ve çok-bantlı Bilsat–1 görüntüleri hakkındaki bilgiler... numaralı çalışma alanı. için Bilsat–1 görüntüsü “20040730073227_171” (36°33´ N, 33...ğişmektedir. Bu test alanı için Bilsat–1 görüntüsü “20040804072344_207” (41°28´ N, 33...ğişmektedir. Bu test alanı için Bilsat–1 görüntüsü “20050426074931_1822” (37°37´ N, 28... çıkmaktadır. Bu test alanı için Bilsat–1 görüntüsü “20050626081629_2241” (37°24´ N, 27...ıda belirtildiği üzere, çok bantlı Bilsat–1 kameraları birbirinden fiziksel olarak ba... yapılabilmiştir. Çok Bantlı Bilsat–1 Görüntülerinin Self Kalibrasyonu Ve... test alanı için, alana ait Bilsat–1 görüntüsü ve 1:25000 ölçekli topo... güçlükle yapılmıştır. Ayrıca, Bilsat–1 renkli görüntülerin yersel çözünürl... 1.16 1.09 0.97 - Çok Bantlı Bilsat–1 Görüntülerinin Self Kalibrasyonu Ve... test daha yapılmıştır. Öncelikle, Bilsat–1 görüntüleri self-kalibrasyon parametrelerinin... ulaşmıştır. Bu sonuçlara göre, Bilsat–1 görüntülerinin ortorektifikasyonu sırasında... nadire yakın olarak elde edilen Bilsat–1 görüntülerinde ortorektifikasyon doğrulu...ıyla (>30°) çekimi yapılan Bilsat– 1 görüntülerinde ise self-kalibrasyon...Ç Bu çalışmada, çok-bantlı Bilsat–1 uydu görüntülerinin ortorektifikasyonu için... kullanıldığında, oluşturulacak Bilsat–1 ortogörüntülerinde bir piksel... dahil edilmemesi durumunda, çok-bantlı Bilsat–1 görüntülerinden elde edilecek olan...ğinde, çekim açısı nadire yakın olan Bilsat–1 görüntülerinde self-kalibrasyon parametrelerinin... yana bakış açısıyla (>30°) çekilen Bilsat–1 görüntülerinde ise self-kalibrasyon..., yüksek yana bakış açısı ile çekilmiş Bilsat–1 görüntülerinin ortorektifikasyonu sırasında... dahil edilmesi zorunludur. Çok Bantlı Bilsat–1 Görüntülerinin Self Kalibrasyonu Ve...ştirilen fotogrametrik modelin çok-bantlı Bilsat–1 görüntüleri için ortorektifikasyon do...ığı söylenebilir. Fakat genelde, çok-bantlı Bilsat–1 görüntülerinin çoğu için yeterli YKN...ştirilen fotogrametrik modelde, çok-bantlı Bilsat–1 görüntülerinden toplanabilecek az say... Teknolojileri Araştırma Enstitüsüne Bilsat–1 görüntülerini sağladığı için..., L. M., Sweeting, M., Yuksel, G., Ozkaptan C., Orlu, U., 2002. BILSAT–1: A Low Cost, Agile, Earth Observation..., H., Gomes, L., Bradford, A., Bean, N., Curiel, A. S., 2004. BILSAT–1: First Year in Orbit-Operations...



Дата загрузки: 2017-02-06
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0.16/5
..., Discriminant Function, Optimization, Statistical Learning, BILSAT v ¨z o ¨ UNT ¨ ¨ KUMELEND ¨ ˙ GOR U IRME VE...¨ u Sınıflandırması, Sınıflandırma ˙ ¨ grenme, BILSAT Teknikleri, Ayırt Edici Fonksiyon... Used in the Study . . . . . . . . . . . . . . . . . 22 1.6.1 BILSAT-1 Data . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1.6.2 Landsat-7 Data . . . . . . . . . . . . . . . . . . . . . . . . . . 23... xi APPENDICES A. FILE booleanthresh.m . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 B. BILSAT IMAGE OF METU SETTLEMENT . . . . . . . 109... tables 1.1 Spectral Bands Characteristics [57]. . . . . . . . . . . . . . . . . . . . 1.2 BILSAT imagery characteristics. . . . . . . . . . . . . . . . . . . . . . 22 1.3 Landsat 7 ETM... time for each classifier using BILSAT RGB image. . . . . . . . . 82 4.3 Error matrix... matrix of classification results of BILSAT RGB imagery with K-means classifier... matrix of classification results of BILSAT RGB imagery with K-means classifier... matrix of classification results of BILSAT RGB imagery with maximum likelihood... matrix of classification results of BILSAT RGB imagery with Boolean discriminant... matrix of classification results of BILSAT RGB imagery with Boolean discriminant... BILSAT red channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 3.1 State Space Representation. . . . . . . . . . . . . . . . . . . . . . . . 33 3.2 Classification Techniques. . . . . . . . . . . . . . . . . . . . . . . . . 35 4.1 BILSAT... k-means classifier. . . 62 4.4 Classification of BILSAT RGB imagery using k-means classifier... k-means classifier . . 64 4.6 Classification of BILSAT RBnir imagery using k-means classifier... k-means classifier . . 65 4.8 Classification of BILSAT RGB imagery using k-means classifier... classifier . . 66 4.10 Classification of BILSAT RBnir imagery using k-means classifier... of each training class of BILSAT imagery . . . . . . . . . 67 4.12 Probability density... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70 4.16 Classification of BILSAT RGB imagery using Gaussian maximum... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 72 4.18 Classification of BILSAT RBnir imagery using Gaussian maximum... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 4.21 Classification of BILSAT RGB imagery using Gaussian maximum... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74 4.22 Classification of BILSAT RBnir imagery using Gaussian maximum... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76 xvi 4.24 Classification of BILSAT RGB imagery using Boolean discriminant... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78 4.26 Classification of BILSAT RBnir imagery using Boolean discriminant... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79 4.29 Classification of BILSAT RGB imagery using Boolean discriminant... classifier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 80 4.30 Classification of BILSAT RBnir imagery using Boolean discriminant... Technologies and Electronics Research Institute BILSAT-1 BILTEN Satellite-1 DN Digital Number... its first earth observation satellite BILSAT-1 in September 2003. Remote sensing... from BILSAT, Landsat-7 and IKONOS were acquired for the research purposes. BILSAT... in a more realistic way. 1.6.1 BILSAT-1 Data BILSAT-1 is an enhanced micro satellite...’s first source of multispectral imagery. BILSAT-1 multi-spectral imaging system records... near infrared channels (see Table 1.2). BILSAT-1 image was obtained from TUBITAK... is not corrected radiometrically. Table 1.2: BILSAT imagery characteristics. Band numbers 1 Blue... the classification using Landsat and BILSAT images’ various combinations of bands.... Classification results using Landsat-7 and BILSAT RGB combinations are shown in... classifier. 62 Figure 4.4: Classification of BILSAT RGB imagery using k-means classifier... k-means classifier Figure 4.6: Classification of BILSAT RBnir imagery using k-means classifier... k-means classifier Figure 4.8: Classification of BILSAT RGB imagery using k-means classifier... classifier Figure 4.10: Classification of BILSAT RBnir imagery using k-means classifier... classifier Figure 4.18: Classification of BILSAT RBnir imagery using Gaussian maximum... classifier Figure 4.22: Classification of BILSAT RBnir imagery using Gaussian maximum... 76 Figure 4.24: Classification of BILSAT RGB imagery using Boolean discriminant... classifier Figure 4.26: Classification of BILSAT RBnir imagery using Boolean discriminant... 79 Figure 4.29: Classification of BILSAT RGB imagery using Boolean discriminant... classifier Figure 4.30: Classification of BILSAT RBnir imagery using Boolean discriminant... provided training sets [51]. Although BILSAT has higher spatial resolution than.... BILSAT’s images performance was tested and compared with Landsat-7. Although BILSAT has... resolution. Here, the reason is BILSAT’s images radiometric characteristics. Six classes...(ind5)); bcinds = indic > 0.1; 108 APPENDIX B BILSAT IMAGE OF METU SETTLEMENT 109...