Спутник ДЗЗ. RISAT 1. [Редактировать]

Аппарат c многофункциональным радиолокатором С-диапазона частот (5,35 ГГц). Спутник предназначен для круглосуточной и всепогодной съемки Земли в различных режимах. Съемка земной поверхности будет проводиться в С-диапазоне длин волн с изменяемой поляризацией излучения (HH, VH, HV, VV).RISAT-1 состоит из приблизительно 1400 подсистем(включая 300 процессоров). Основной сложностью при создании являлась разработка программного обеспечения. С другой стороны, такое решение позволило упростить техническую составляющую спутника, а кроме этого, увеличить темп передачи данных с 110 до 640 мбит в секунду. Структурно платформа аппарата состоит из цилиндра на который установлена треугольная структура которая предназначена для размещения радиолокатора. Центральная часть выполнена из алюминия.

 

Дополнительные наименования

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Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Индия
2Тип оператора(владельца) - военные
3Тип орбиты - НОО
4Страна производитель - Индия
5Радиолокационные спутники ДЗЗ
6Все спутники ДЗЗ

Технические характеристики

#ХарактеристикаЗначение
1Масса, кг1858
2Спектральный диапазонС-диапазон
3Ширина полосы съемки (сверхвысокого разрешения (High Resolution SpotLight — HRS)), км10
4Ширина полосы съемки (высокого разрешения (Fine Resolution Stripmap-1 — FRS-1)), км25
5Ширина полосы съемки (высокого разрешения (Fine Resolution Stripmap-2 — FRS-2)), км25
6Ширина полосы съемки (среднего разрешения / низкого разрешения (Medium Resolution ScanSAR— MRS / Coarse Resolution ScanSAR — CRS)), км115
7Ширина полосы съемки (Низкого разрешения (Coarse Resolution ScanSAR — CRS)), км220
8Скорость передачи данных на наземный сегмент, мБит в секунду640
9Поляризация (сверхвысокого разрешения (High Resolution SpotLight — HRS))одинарная (по выбору — HH или VV)или двойная (по выбору — HH/HV или VV/VH) VV/VH)
10Поляризация (высокого разрешения (Fine Resolution Stripmap-1 — FRS-1))одинарная (по выбору — HH или VV)или двойная (по выбору — HH/HV или VV/VH) VV/VH)
11Поляризация (высокого разрешения (Fine Resolution Stripmap-2 — FRS-2))четверная
12Поляризация (среднего разрешения / низкого разрешения (Medium Resolution ScanSAR— MRS / Coarse Resolution ScanSAR — CRS))одинарная
13Поляризация (низкого разрешения (Coarse Resolution ScanSAR — CRS))одинарная
14Номинальное пространственное разрешение (сверхвысокого разрешения (High Resolution SpotLight — HRS)), м1
15Номинальное пространственное разрешение (высокого разрешения (Fine Resolution Stripmap-1 — FRS-1)), м3
16Номинальное пространственное разрешение (высокого разрешения (Fine Resolution Stripmap-2 — FRS-2)), м9
17Номинальное пространственное разрешение (среднего разрешения / низкого разрешения (Medium Resolution ScanSAR— MRS / Coarse Resolution ScanSAR — CRS)), м25
18Номинальное пространственное разрешение (низкого разрешения (Coarse Resolution ScanSAR — CRS)), м50
19Диапазон углов съемки (сверхвысокого разрешения (High Resolution SpotLight — HRS)), градусов20–49
20Диапазон углов съемки (высокого разрешения (Fine Resolution Stripmap-1 — FRS-1)), градусов20–49
21Диапазон углов съемки (высокого разрешения (Fine Resolution Stripmap-2 — FRS-2)), градусов20–49
22Диапазон углов съемки (среднего разрешения / низкого разрешения (Medium Resolution ScanSAR— MRS / Coarse Resolution ScanSAR — CRS)), градусов20–49
23Диапазон углов съемки (низкого разрешения (Coarse Resolution ScanSAR — CRS)), градусов20–49

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град97.6
2Апогей, км549.3
3Перигей, км544.0
4Период, минут95.4
5Длинный диаметр эллипса, км6917

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2012-017A

Экономические характеристики

#ХарактеристикаДата измеренияЗначение
1Стоимость (аппарат), млн. рупий2012-04-263780
2Стоимость (аппарат), млн. долл.2012-04-2656

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2012-04-26 at 00:17:00 UTC
2Полезная нагрузка 1xRISAT 1
3Ракета-носитель 1xPSLV-XL

Найдено 213 документов по запросу «RISAT 1». [Перейти к поиску]


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..., возглавляемыми деепричастной формой на -gaC1. (1) a. [rISat Ришат kIl-gAC] [zEfAr kIt... Ришат пришел, Зуфар ушел. {a=b=c} b. [zEfAr [rISat kIl-gAC] Зуфар Ришат kIt... kIt-tE], Зуфар уходить-PST [rISat Ришат kIl-gAC]. приходить-ANT... формами в традиционном понимании этого термина): (4) *rISat kIl-gAC. Ришат приходить-ANT...–360, Юсупов 1985: 160–166). (7) rISat Derl-a-gaC aS-a-de. Ришат... русского союза как только: (10) rISat Ришат kIl-U-gA AtA-sE... может выражаться только номинативом2: (11) a. rISat Ришат kIl-U-gA zEfAr kIt... ушел, как только Ришат пришел. {a=b} b. *rISat-neN kIl-U-gA zEfAr kIt... запрет. 2 43 А.Г.Пазельская, А.Б.Шлуинский (12) a. rISat kIl-U-E-n-A, Ришат zEfAr kIt-tE... ушел, как только Ришат пришел. {a=b} b. rISat-neN kIl-U-E-n-A, zEfAr kIt-tE... главной и зависимой предикациями, совпадают: (13) rISat Ришат Derl-a-gan-da, zEfAr... Ришат пел, Зуфар ушел. (14) rISat Ришат kIl-gAn-dA, zEfAr... и Зуфар {т.е. вместе с ним} пришел. (15) rISat Ришат kIl-gAn-dA, lAjsAn... ботинок-3-ACC tap-kan-da, rISat находить-PFCT-SIM Ришат kIl..., Юсупов 1985: 166–175). (19) rISat Ришат kIt-kAn-CE, aS... тем как ушел, поел. (20) rISat Ришат kIl-gAn-CE, zEfAr...: (21) zEfAr Derl-a-r ald-e-n-nan rISat Зуфар петь-ST-POT перед.... (22) zEfAr Derl-a-r waket-ta rISat Зуфар петь-ST-POT время... kIl-E-p Зуфар приходить-ST-CONV rISat Ришат kIt-tE. уходить-PST... в (25): (25) zEfAr kIl-gAC rISat kIt-tE. Зуфар приходить-ANT... этой ситуации: (64) (AgAr) (если) rISat kIl-sA zEfAr Ришат приходить... форма презенса: (65) (AgAr) (если) rISat kIl-sA Ришат приходить-COND... Обстоятельственные предложения (66) (AgAr) (если) rISat kIl-sA Ришат приходить-COND... рассказал новости. (69) (AgAr) (если) rISat kIl-gAn bul-sa Ришат... предикации невозможно: (70) *(AgAr) (если) rISat kIl-gAn bul-sa Ришат... иллюстрируются в (73a-d). (73) a. (AgAr) (если) rISat xaten–kez Ришат женщина bul... [= нашел] бы ребенка. {a=b=c=d} b. (AgAr) (если) rISat xaten–kez Ришат женщина bul... AUX1-PST c. (AgAr) (если) bul-e-r rISat xaten–kez Ришат женщина bul...-POT AUX1-PST d. (AgAr) (если) rISat xaten–kez Ришат женщина bul... dImAk вложение невозможно (76): (75) a. rISat Ришат Derl-ej I-kAn ul... Раз Ришат поет, он пришел. b. rISat, Ришат ul Derl-ej I-kAn..., раз он поет, пришел. (76) a. rISat Ришат Derl-ej I-kAn dImAk... поет, значит он пришел.{a=b} b. *dImAk rISat, значит Ришат ul Derl-ej... — форма глагола kUrA ‘видеть’): (79) rISat ISEk-nE jap-kan-ga... что Ришат закрыл дверь. (80) rISat Ришат Satl-a-gan-ga (kUr... невозможна, интерпозиция крайне сомнительна: (81) a. rISat Ришат kIt-tE, CEnkI zEfAr... zEfAr потому.что c. ??rISat, CEnkI Ришат kIl-dE, rISat Зуфар приходить-PST... только в номинативе (ср. (85c-d)): (85) a. rISat Ришат ESl-A-gAn-E работать-ST..., А.Б.Шлуинский b. rISat-neN ESl-A-gAn-E Ришат-GEN работать-ST-PFCT-3 c. rISat Ришат ESl-A-gAn ECEn работать-ST-PFCT ради d. *rISat-neN..., чтобы пить. (89) AnA-sE rISat-ne мать-3 aS-a-r-ga Ришат... главной и зависимой предикаций совпадают: (93) a. rISat, Ришат (mIn) EC-E-r-mEn (я) пить.... в Черемисина 1980. 76 Обстоятельственные предложения b. rISat, Ришат (mIn) EC-A-jACAk-mEn... всего совпадает с третьим лицом: (95) rISat, Ришат (sIn) EC-E-r-sEN dIp... и с послелогом ECEn ‘ради’ (100b): (100) a. rISat, AtA-sE Ришат отец-3 kEr... вошел [=сказав: «Пусть отец войдет»] {a=b}. b. rISat, AtA-sE kEr-sEn ECEn... присоединяет показатель множественного числа: (101) a. rISat, bEz a-ne kUr-m-A-sEn-(nAr...: «Пусть мы его не увидим»]. {a=b} b. rISat, bEz a-ne kUr-m-A-sEn-(nAr... ТГ 1992: 362–364): (103) rISat, Ришат aS-a-sa da, Derl...) kIl-E-p приходить-ST-CONV tA rISat aS-a-m-a-de. и есть-ST-NEG...: 377–379) в различных сочетаниях: (109) rISat, Ришат zEfAr kaja Зуфар где... предшествования: (113) a. zEfAr uren-da rISat Зуфар сидеть-PFCT местo-LOC... там [= в месте], где сидел Зуфар. b. rISat Ришат zEfAr uter-gan jak... стороны], где сидел Зуфар. c. zEfAr rISat Зуфар Ришат jAS-A-gAn DIr... выражение субъекта. (114) a. AnA-sE rISat-ne, patSa xaten-e patSa-ne.... {a=b} 81 А.Г.Пазельская, А.Б.Шлуинский b. AnA-sE rISat-ne, мать-3 patSa Ришат-ACC...) царь-ACC kEbEk AnA-sE rISat-ne кормить-PFCT как мать..., как (кормят) царя. {a=b=c} b. AnA-sE rISat-ne, мать-3 patSa-ne Ришат... (aS-a-t-kan) SIkEllE AnA-sE rISat-ne есть-ST-CAUS-PFCT...



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... 1989-2002 DMSAR 2005-2007 RISAT 2002-2012 CANEUS SSTDM 2014... 2014 ISRO 26th April, 2012 : RISAT-1 Launch 27-28th April 2012..., 2012 : RISAT-1 Imaging Operation CANEUS SSTDM 2014 ISRO FEATURES OF RISAT SAR... 2014 ISRO OPERATION MODES OF RISAT-SAR 536 km (C)FRS1/ (C)FRS2... ISRO CANEUS SSTDM 2014 ISRO RISAT-SAR UNDERGOING CHARACTERIZATION IN NEAR... ISRO TOTAL POWER DISSIPATION FOR RISAT-SAR 1. Total Deck Dissipation 113...-3884 Watts TOTAL MASS FOR RISAT-SAR 1. Panel-1 289.31 kg... OF NEW TECHNOLOGIES DEVELOPED DURING RISAT PROGRAMME TR CONTROL COMPUTERCENTUM, ASTRA... Mt. Kelud , Indonesia Imaged by RISAT-1 on 9th March, 2014 CANEUS...  EVEN CANEUS SSTDM 2014 ISRO RISAT-1 HYBRID POLARIMETRY RESULTS Andaman Sea...: 24th AHMEDABAD November November ISRO RISAT-1 HYBRID POLARIMETRY ONLY CAN PROVIDE...



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..., WG VI/4 KEY WORDS: Polarization, RISAT-I, ENVISAT ASAR ABSTRACT: The study... recently launched multi-mode of RISAT-1 (Radar Imaging Satellite) by Indian... only four band combination of RISAT 1 data, the continuation of work... CRS - HH and HV of RISAT -1 compared to dual polarization Envisat... mode of RISAT-1 Figure 4: HV polarization of MRS mode of RISAT -1 Figure... used in this research includes RISAT I, Envisat ASAR and Resourcesat II... IV data. The resolution of RISAT I CRS and MRS are 36m... 1. Table 1: The data details of RISAT and ENVISAT ASAR Polariza Incidence... angle o HH 26.83 to RISAT 1 CRS 10-10-2012 &HV....84o HH 31.76o to RISAT 1 MRS 12-10-2012 &HV... mode of RISAT-1 Figure 2: HV polarization of CRS mode of RISAT-1 3.2 Methods In the operation of RISAT I, transmits and... available in txt format with RISAT 1 data products. The Table 1 shows... variation in different modes of RISAT 1 and Envisat ASAR data. The... temporal and mutli polarization of RISAT -1 and EnviSat ASAR are used... 1) RISAT -1 CRS - HH & HV Polarization 2) RISAT -1 CRS - HH, HH-HV & HV Polarization 3) RISAT -1 MRS - HH & HV Polarization 4) RISAT... & VH Polarization 9) RISAT -1 CRS - HH & MRS - HV Polarization 10) RISAT -1 MRS - HH... and hamlets. RISAT-1 CRS HH RISAT-1 CRS HV RISAT-1 MRS HH RISAT-1 MRS HV... comparison between different polarization of RISAT-1 and ENVISAT ASAR data. The... 2,3 and 4. The dual polarization of RISAT-1 was achieved better classification results... data. The dual polarization mode RISAT -1 CRS mode got better classification... combination of CRS Mode of RISAT data band. SVM Classifier giving... - HH and CRS – HV of RISAT 1 in three classifiers. Similarly combination.... Plantation are better identified in RISAT CRS mode data and both... on the classification results, the RISAT-1 dual polarization of CRS and.... The fully polarimetric data of RISAT-1 data are will provide better... in dual polarization data of RISAT MRS mode, and EnviSat ASAR...



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... 1. RISAT-1 Satellite Overview 4.5 2. Mission Overview 2.1 Mission Specifications 2.2 Mission elements 3. RISAT Specifications 3.1 RISAT-1 Orbit 3.2 RISAT... requirements to track and receive RISAT-1 data 4.3 IMGEOS configuration 4.4 Data reception... translator SAR payload for RISAT 6.1 Modes of operation RISAT data products and... 11.3 Agricultural 11.4 Flood 1. RISAT-1 SATELLITE OVERVIEW RISAT mission is envisaged to.... sensing and develop newer applications. RISAT will be launched by ISRO... contemporary international The objectives of RISAT are, i)To operating in scanSAR... well as in storage mode. RISAT technology has been chosen so... in follow-on missions of RISAT. deg. with repetivity cycle of... for choosing the orbit for RISAT-1 is achieving a global coverage in... orbit at 536.38 in RISAT-1 are and these will theDevelopment... archival. Fig.1 Mission Elements of RISAT-1 be variable as per mission... modes. 3.2RISAT heritage /new elements RISAT-1 has 13 new sub systems... sub configuration. interface, systems for RISAT-1. 3.3.2 Coordinate System & Panel 3.3 Mechanical systems... satellite is Radar Imaging satellite (RISAT) is built taken as the... the weight class of 2000kg. RISAT attitude weight is 1850 kg... for axis definition of 3.3.1 Structure RISAT mission. considered for the satellite... the The main structure of RISAT consists of one single cylinder.... The orbit and orientation of RISAT gives rise to the following... the SAR payload. The 3.3.3 Mechanisms RISAT employs SAR data is transferred... state vector of the high- RISAT, half the data i.e. 320 MBPS... the remaining Radar Imaging Satellite (RISAT) Power 320 MBPS in the... operation and modulation system for RISAT is designed to (a) schemes are... exceeds the array generation during RISAT comprises of 10-channel C/A payload... adopt to 70V bus within RISAT time individual cell monitoring, frame... The energy storage system for RISAT cabling and the associated connectors... Capacity (0.3 Nm Torque and 50.0 RISAT AOCS modules are derived from... tetrahedral configuration about – required for RISAT mission and are Pitch axis... and Pitch axis for Momentum RISAT is configured with thefollowing Dumping... applications. 1.3 Modes of Operation The RISAT High Resolution SAR will be... have been illustrated in Fig.2.1. 1.4 RISAT Imaging Geometry In order to... m2 for C-band operation. Hence, RISAT active antenna is configured with... pairs (V & H) of TR-modules. The RISAT antenna consists of three panels... FRS-1,FRS-2,MRS,CRS modes) RISAT-1 : Orbit deg with a series of... the diagram below. PSLV placed RISAT-1 into 476 km altitude with... the maximum duration is 22 RISAT-1 : Referencing Scheme The Referencing scheme... crosses over many ground for RISAT-1 is a generalized one due to... MHz, the two streams with a RISAT-1 (Radar Imaging Satellite) total data... modulation project to cater for RISAT-1 data scheme. The bandwidth available... requirements to track and receive RISAT-1data • Satellites (IMGEOS) is being... from Simulator for simulation of RISAT- Concrete pedestal to Centralized 1 RF... receive demodulate transmitter is driventhrough a RISAT, which are modulated at a Single... Quick Look Display System 5.1Introduction RISAT-1 is the first Microwave Indian... of the Level-0 Systems for RISAT-1. Level ‘0’ Systems • • Ancillary Data Processing... chains will be assigned for RISAT-1 as Main & redundant chains. Station... scheduling of stamping requirements of RISAT- events. The Set-time and... for all 6.SAR Payload for RISAT Radar elevation pointing and almost..., roughness and Fine geometry. In RISAT, SAR sensor is Mode-1 (FRS... range swath dimension. This The RISAT High Resolution SAR isachieved by...-mode at 25-day of RISAT, therewill 12 beams repetivity considerations... Systems 7.RISAT DATA PRODUCTS & FORMATS pg. 67  Radar Imaging Satellite (RISAT-1) will... levels of products defined for RISAT-1 are as follows: 7.1 Raw Signal... proper validation. 7.4Image Quality Parameters: RISAT-1 products will nominally provided in....19ScanSAR Imaging: MRS Definition of RISAT Data Products LEVELS (i) Level-0 :Raw signal products TABLE.3 DPWFM RISAT-1 PRODUCT CODES Code is 9 chars... range PRODUCT CODE LIST FOR RISAT-1 Product type Map Proj Resampling... products that reach users. All RISAT-1 data products will be thoroughly... etc. pg. 71  8.2Format validation: RISAT-1 data products are supplied in... data acquisition and processing. All RISAT-1 data products are subjected for... not an applicable parameter for RISAT-1 images since they are in... the Optical data sets for RISAT-1 no images are generated only... Programming Pg 59 10.1 INTRODUCTION RISAT is the first of the... Modes Table.6 Mode wise Polarization RISAT is a programable satellite. The data... and for archival buildup. As RISAT provides different beam modes and... the planning and ordering of RISAT data slightly more complex than... a tool, which calculates the predicted RISAT's orbit. It allows to generate... for this purpose. Fig.21 (A) RISAT-2- x-band VV data (B) FCC of... from GLCM matrix Fig.22 (A)RISAT-2 X-band data (B) Cartosat-1 data showing...-P6 LISS-IV data and (D) RISAT-2 X-band data showing forest openings...



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RISAT-1 Data Products Formats (August 2014) ... Constant is being provided in RISAT-1 Data Products for computation of... Title 1. 2. 3. 1.0 1.1 2.0 RISAT-1 Data Products RISAT-1 Data Products Contents Radiometric Calibration of RISAT-1 Data Products Page No. 1 2 3 4. 5. Appendix-1 A1.0 Format of RISAT-1 Band Meta File Sample RISAT-1 Data Product BAND META File 6 7 6. 7 8. Appendix-2 A2.0 A2.0.1 RISAT-1 CEOS Record Structure and Contents RISAT-1 CEOS Products and CEOS Format Detailed Description of RISAT-1 CEOS....2 A3.2.1 A3.3 A3.3.1 A3.4 Appendix-4 RISAT-1 GeoTIFF Record Structure and Contents... Structure of TIFF GeoTIFF for RISAT-1 Data Products GeoTIFF Structure Validation... 59 60 61 62 1.0 RISAT-1 Data Products RISAT-1 data products are available.... The Level and type of RISAT-1 Data Products are listed in...   Table 1.1 Levels and type of RISAT-1 Data Products Level-0: RAW Product... 1.2 Polarization Combinations for RISAT-1 Products 1 1.1 RISAT-1 Data Products Contents RISAT-1 data products for...: 128385331_HH.jpg 2 2.0 Radiometric Calibration of RISAT-1 Data Products Radiometric calibration of.... 2.0.1 Corrections in Calibration Constant for RISAT-1 SLC products Since, Calibration Constant... and polarizations following correction in RISAT-1 SLC Product calibration Constant (KSLCdB... 2.1 Corrections in Calibration Constant for RISAT-1 SLC Products However, for the.... 5 Appendix-1 Format of RISAT-1 Band Meta File 6 A 1.0 Sample RISAT-1 Data Product BAND... dependent upon archival flag SatID=RISAT-1 Sensor=SAR GenAgency=NRSC / KSAT... processing 8 Appendix-2 RISAT-1 CEOS RECORD STRUCTURE AND CONTENTS 9 A2.0 RISAT-1 CEOS Products... CEOS files for RISAT products CEOS FORMAT FILES / RECORDS RISAT CEOS PRODUCTS....0 Organization of CEOS files for RISAT Products Detailed information about the... of the records present in RISAT CEOS files is provided in... of RISAT-1 CEOS Records Following is the explanation for the RISAT CEOS... $$ Unused 9 format_doc 17-28 A12 RISAT-1-CEOS Format control documentation 10...:$RISAT-1-mmmmRAW$SIGNAL$$$$$$$$ Level-1 :SLANT PRODUCT:$RISAT-1-mmmmSLANT$GEOTAGGED$$$ Level-1 :GROUND PRODUCT:$RISAT-1-mmmmGROUND$GEOTAGGED$$ Level-2: PRODUCT:$RISAT... $$ Unused 9 format_doc 17-28 A12 RISAT-1-CEOS Format control document 10...-412 A16 RISAT-1$$$$$$$$$ Mission identifier 34 sensor_id 413-444 A32 RISAT-1-C$-mmmmpp... 569 satellite_id 8906-8915 A10 RISAT-1$$$ Satellite identifer 570 user_id 8916... $$ Unused 9 format_doc 17-28 A12 RISAT-1-CEOS Format control document 10... $$ Unused 9 format_doc 17-28 A12 RISAT-1-CEOS Format control doc 10... are ON fully 47 Appendix-3 RISAT-1 GeoTIFF RECORD STRUCTURE AND CONTENTS 48 A3.0 GeoTIFF Format All RISAT data products will be available... generated on demand. Fig A3.0 RISAT-1 GeoTIFF Product Composition A3.1 Product... layers being supplied by the RISAT-1 processor. Related information within the....1.1 Product Parameters 49 Fig A3.1 RISAT-1 Product Hierarchy ii) Source Attributes... TIFF file A3.3 GeoTIFF for RISAT-1 Data Products: The aim of.... The GeoTIFF image generated using RISAT-DP software is opened using... Ritter, JPL 10 Nov 1995. 3.RISAT Data Format VER-12,19th...



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... in optical and microwave wavelengths. RISAT carrying a Synthetic Aperture Radar was... – RESOURCESAT-1 and 2; CARTOSAT-1, 2, 2A, 2B; RISAT-1 and 2; OCEANSAT-2; Megha-Tropiques; and... observational capabilities, ISRO has developed a RISAT (Radar Imaging Satellite) series of... from Israel. This was called RISAT-2 and was launched in April...-in-ISRO RISAT (called RISAT-1, though it was launched well after RISAT-2) went... the capacity for continuous surveillance. RISAT-1 with a resolution of one meter...), Fanhui Shi Weixing (China), and RISAT (India). Space assets have been... the RISAT-1 and RISAT-2 were developed in the last decade. The RISAT series... day-and-night visibility. The RISAT satellites are thus capable of... RISAT series are considered a “force multiplier” in the defence context. The RISAT... 205 though India was developing RISAT-1 indigenously, the security compulsions following... the development and launch of RISAT-2. Navigation-related functions have also... time of four days. The RISAT 1 and 2 provide a complementary all-weather... Remote Sensing Satellites (IRS) including RISAT, CARTOSAT, RESOURCESAT and Indian Regional...



Дата загрузки: 2017-04-08
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... in optical and microwave wavelengths. RISAT carrying a Synthetic Aperture Radar was... – RESOURCESAT-1 and 2; CARTOSAT-1, 2, 2A, 2B; RISAT-1 and 2; OCEANSAT-2; Megha-Tropiques; and... observational capabilities, ISRO has developed a RISAT (Radar Imaging Satellite) series of... from Israel. This was called RISAT-2 and was launched in April...-in-ISRO RISAT (called RISAT-1, though it was launched well after RISAT-2) went... the capacity for continuous surveillance. RISAT-1 with a resolution of one meter...), Fanhui Shi Weixing (China), and RISAT (India). Space assets have been... the RISAT-1 and RISAT-2 were developed in the last decade. The RISAT series... day-and-night visibility. The RISAT satellites are thus capable of... RISAT series are considered a “force multiplier” in the defence context. The RISAT... 205 though India was developing RISAT-1 indigenously, the security compulsions following... the development and launch of RISAT-2. Navigation-related functions have also... time of four days. The RISAT 1 and 2 provide a complementary all-weather... Remote Sensing Satellites (IRS) including RISAT, CARTOSAT, RESOURCESAT and Indian Regional...



Дата загрузки: 2016-11-03
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... this study, multi-date C-band (RISAT-1) and L-band (ALOS-PALSAR) synthetic...) retrieval algorithm using multi-temporal RISAT-1 SAR data Dharmendra K. Pandey, Saroj... compared with multi-temporal C-band (RISAT-1) synthetic aperture radar (SAR) data.... High correlations were observed between RISAT-1 sigma-0 HH and HV with... (ISRO) namely Radar Imaging Satellite -1 (RISAT-1) - Synthetic Aperture Radar (SAR) and... for fast moving Himalayan glacier. RISAT-1 FRS-1 hybrid data is used... Crevasses were identified in Antarctic. RISAT-1 FRS-1 data was also successful... decomposition techniques were applied on RISAT-1 hybrid polarimetric data. Polarimetric decomposition...), OSCAT (2010–2014) scatterometer and RISAT-1 SAR (2012– 2014) data to... winds have been retrieved using RISAT-1 SAR data. However, due to... forest aboveground biomass estimation using RISAT-1 PolSAR and terrestrial LiDAR data... obtained from decomposition modelling of RISAT-1 fully polarimetric SAR data. TLS... TLS and field data collection. RISAT-1 data was processed to retrieve... as Resourcesat-2 AWiFS & LISS III, RISAT 1 MRS, Sentinel 2, Landsat 8 are used...: an approach to validate derived RISAT-1 calibration constants Shweta Sharma, Space... the calibration constants derived for RISAT-1 FRS-1 and MRS mode data... radiometric calibration was done for RISAT-1 FRS-1 data of 28th June... and reconstruction of hybrid polarimetric RISAT-1 data for pseudo quad-pol... Hybrid Polarimetric SAR data of RISAT-1 satellite of ISRO. Reliable scattering... 11 Instrument calibration architecture of RISAT-1 payload Rakesh Bhan, Indian Space... Ctr. (India) Radar Imaging Satellite (RISAT-1) is a multi resolution/multiswath/multi... system demands a complex system architecture. RISAT-1 system is configured with a dual... azimuth track. Hardware architecture of RISAT-1 is configured to support 13... due to phase/gain deviation. RISAT-1 payload system is configured to... technique. Instrument calibration architecture of RISAT-1 supported ground verification and validation... and software calibration architecture of RISAT-1. System calibration before each imaging... observations. This paper concentrates on RISAT-1 hardware and software architecture which... of special calibration scheme of RISAT-1 instrument to evaluate system response... produce good contrast images. In RISAT-1, hybrid polarimetry is implemented in.... 9881-63, Session 16 C-band RISAT-1 imagery for geospatial mapping of... from Indian Radar Imaging Satellite (RISAT-1) for land cryospheric surface feature... and Schirmacher Oasis, East Antarctica. RISAT-1 Fine Resolution STRIPMAP (FRS-1) mode... of information in dual polarized RISAT SAR data, a band HH+HV...) was also used to classify RISAT-1 data with optimized polarization combination... FRS1 image mode data from RISAT-1 mission can be exploited to... polarimetric data (cFRS-1 mode) from RISAT-1, which incorporates phase information, unlike...



Дата загрузки: 2017-01-30
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... (now called FASAL); flood monitoring. RISAT and RADARSAT-1/2 are both C-band..., 2012 7 Synergy of RISAT and RADARSAT-2 Flood Monitoring RISAT and RADARSAT-2 can... and areas of critical infrastructure RISAT RADARSAT-2 Fine Resolution Stripmap Mode... swath) Increasing Re-visit with RISAT and RADARSAT-2 • • In a 25-day... to 18 from 10 when RISAT and RADARSAT-2 are used. There... when RISAT and RADARSAT-2 image multiple times in a single day. RISAT only: 10 9 RADARSAT-2 only: 8 RISAT+RADARSAT-2: 2 Agriculture Crop.... 12 Synergy of RISAT and RADARSAT-2 Rice Crop Monitoring RISAT and RADARSAT... Crop classification, e.g. rice and jute RISAT RADARSAT-2 Fine Resolution Stripmap Mode... for analysis using RISAT and RADARSAT-2 quadpolarized data 14 RISAT and RADARSAT... 50% covered using only RISAT (left). If RISAT and RADARSAT-2 are combined... approximately 90% covered. Note that RISAT has a 25-day repeat cycle... RISAT and RADARSAT-2 Provide Faster Spatial Coverage Complete coverage using only RISAT requires 33 days (left). If RISAT and RADARSAT... for flood and agricultural monitoring RISAT and RADARSAT-2 can be combined...



Дата загрузки: 2017-02-23
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... one year in orbit for RISAT-2 and with this, many opportunities... using the data acquired from RISAT-2. Also, the data from Oceansat... Net Primary Productivity Over India RISAT-2 Applications Amalgamation of RRSCs with... for selected region. Figure 2 RISAT-2 Applications RISAT-2, or Radar Imaging Satellite 2 is.... Synthetic Aperture Radar (SAR) onboard RISAT-2 operates in X band at 9.59... plowing, was clearly visible in RISAT-2 data. Distinction of field boundaries was well manifested in RISAT 2 data and the contextual contrast... back scattering forest crowns. Plantations, RISAT-2 X-band VV data, Uttar Kannada... measures derived from RISAT-2 data. • index X-band SAR on RISAT-2 has the... and water are observed with RISAT-2 data that enables better delineation... side by side in the RISAT-2 data highlighted topographic variations. • Sea... oceans could be estimated from RISAT-2 data towards automatic detection of... data from RISAT-2 and the planned C-band data from RISAT-1 could together... of P2P for specifications of RISAT-2 payload.  FCC of variance (R), mean....in Preliminary analysis of RISAT-2 data Preliminary analysis RISAT-2 data obtained in... modes of RISAT-2 River meandering and embankments as seen from RISAT-2 data...