Спутник связи. UWE 1. [Редактировать]

Задачей немецкого спутника UWE-1 является обеспечение космической платформы для исследований с использованием узловой технологии, опирающейся на Интернет, чтобы обеспечить в свою очередь связь с малым исследовательским космическим аппаратом.

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
128892НайтиНайти

Дополнительная классификация

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

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град97.8
2Апогей, км706.7
3Перигей, км682.5
4Период, минут98.5
5Длинный диаметр эллипса, км7065

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2005-043C

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2005-10-27 at 06:52:00 UTC
2Полезная нагрузка 1xTsinghua
3Полезная нагрузка 1xTopSat
4Полезная нагрузка 1xUWE 1
5Полезная нагрузка 1xSinah 1
6Полезная нагрузка 1xSSETI-Express
7Полезная нагрузка 1xCubeSat 11-5
8Полезная нагрузка 1xMoz 5/Safir/Rubin 5
9Ракета-носитель 1xКосмос

Найдено 1000 документов по запросу «UWE 1». [Перейти к поиску]


Дата загрузки: 2017-02-23
Скачать документ
Скачать текст
Скачать перевод
Посмотреть билингву
0.1/5
... ............................................................................................................................ 2 1.3 Project Partners ...................................................................................................................... 2 1.4 Project Outline ........................................................................................................................ 3 1.5 Findings ................................................................................................................................... 6 1.5.1 UWE Strategic Priorities .................................................................................................. 7 1.5.2 ID Cards and... Training and Communication ................................................................................. 8 1.5.4 Impact on UWE students and Library of use...-testing ..................................................................................................................... 10 1.6 Recommendations ................................................................................................................ 11 1.6.1 For UWE ........................................................................................................................ 11 1.6.2 For LibrariesWest .......................................................................................................... 11 1.6.3 For... context .......................................................... 13 2.2 Quantitative Evaluation ........................................................................................................ 15 2.2.1 UWE .............................................................................................................................. 15 2.2.2 LibrariesWest ................................................................................................................ 18 2.3 Qualitative evaluation ........................................................................................................... 19 2.3.1 UWE Library Services Staff Survey ................................................................................ 19 2.3.2 UWE Library Services Staff... participants in the scheme, both UWE and general public. ...................................................................................................... 22 Section... Press Coverage .............................................................................. 40 3.2.4 Web pages UWE............................................................................................................ 43 3.2.5 Web pages LibrariesWest ............................................................................................. 44... 3.2.8 Articles .......................................................................................................................... 49 3.2.9 Library staff briefings – UWE ........................................................................................ 54 3.2.10 LibrariesWest Staff Briefing... 3.2.11 Public hand-out at UWE ................................................................................................ 59 3.2.12 Promotional events and... the UK ................... 63 3.5 Survey of UWE Library Services Staff .................................................................................... 65 3.6 Survey... reciprocal library card / UWE ID card scheme. UWE Library Services’ Community Engagement... 31st July 2014] 2 UWE Library Services: http://www1.uwe.ac.uk/library... within any of UWE’s campus libraries. In addition, UWE was funded by... contributed to the outcome. 6 1.5.1 UWE Strategic Priorities UWE Bristol has a strong commitment... letters is scanned at a UWE kiosk, the UWE system substitutes numbers for... LibrariesWest website from the UWE Library website. 1.6.1 For UWE • Ongoing promotion should... of the scheme. 2.2.1 UWE 2.2.1.1 New External Borrowers Within UWE there is a range.... 18 2.3 Qualitative evaluation 2.3.1 UWE Library Services Staff Survey UWE Library Services Staff... higher education resources in UWE Library, and for UWE students and staff...'s opinions of UWE - makes UWE seem more relevant and inclusive. 2.3.2 UWE Library Services... UWE International Support Officer to email to UWE International Students. Via the UWE... distributed to UWE staff and students via the UWE Intranet, UWE Staff Weekly... the categories of UWE External Borrower, UWE LibrariesWest Borrower and UWE Schools Borrower... a LibrariesWest card to join UWE Library and UWE students and staff to... your UWE ID Card UWE students and staff can use their UWE ID... walk past in the UWE area take your UWE ID Card to... 3.2.9 Library staff briefings – UWE Instructions issued to all UWE Library Services Learner..., please visit the UWE Library Website http://www1.uwe.ac.uk/library... higher education resources in UWE Library, and for UWE students and staff...-UWE people • Ongoing promotion • New Autumn intake at UWE and in schools • UWE... engagement links • Existing UWE/public Library liaison meetings • UWE multi media – intranet...



Дата загрузки: 2017-09-24
Скачать документ
Скачать текст
0.02/5
..., Erhard; Leroy, Pascal Nigel M.; Lendeckel, Uwe Hooper, 2005 978-0-387-22689...; Corliss, George; Hovland, Paul ; Naumann, Uwe ; Norris, Boyana Spector, Lee 2006... Control Systems Editors/Authors Kiencke, Uwe; Nielsen, Lars Year Book ISBN13...-4441-3 Basic Theoretical Physics Krey, Uwe; Owen, Anthony 2007 978-3-540... Editors/Authors Banerjee, Arpan K.; Busch, Uwe; Thomas, Adrian M. K. VanderLinde, Jack Classical...) Eckardt, Ulrich; Flach, Boris; Knauer, Uwe; Polthier, Konrad; Reulke, Ralf 2006...; Patranjan, Paula-Lavinia; Sattler, Kai-Uwe; Spiliopoulou, Myra; Wijsen, Jef Current... Simulation in Electrochemistry Meyer-Baese, Uwe 2007 978-3-540-72612-8 978... Sorensen, Danny C. Bank, Ute; Lendeckel, Uwe; Reinhold, Dirk 2006 978-0-387..., Rubin; Scholz, Fritz; Schröder, Uwe Miyake, Yozo 2005 978-3-540... Extraperitoneal Radical Prostatectomy Stolzenburg, Jens-Uwe 2007 978-3-540-45533-2 978... Policy Entropy and Energy Cantner, Uwe; Dinopoulos, Elias; Lanzillotti, Robert F. Müller...-8285-8 Fallsammlung zum Strafprozessrecht Hellmann, Uwe 2006 978-3-540-28338-6 978...-3-7908-1914-4 Innovation Cell Weissflog, Uwe; Wördenweber, Burkard 2005 978-3-540..., Market Archetypes and Outcome Cantner, Uwe; Malerba, Franco 2007 978-3-540...-3-540-32080-7 Brenner, Walter; Pilgram, Uwe; Zarnekow, Rüdiger Integrated Management and... Proteases (I-CLiPs) Hooper, Nigel M.; Lendeckel, Uwe 2007 978-1-4020-6310-7 978..., Patricia Flatley; Hawkins, Robert P. Götze, Uwe; Northcott, Deryl; Schuster, Peter Anderson... Parallel Processing Frachtenberg, Eitan; Schwiegelshohn, Uwe 2007 978-3-540-71034-9 978..., Larry; Schwiegelshohn, Uwe Feitelson, Dror; Rudolph, Larry; Schwiegelshohn, Uwe Clucas, Stephen 2005... Driven Architecture Aksit, Mehmet; Aßmann, Uwe; Rensink, Arend Hartman, Alan; Kreische...; Jancke, Roland; Kakerow, Ralf; Knochel, Uwe; Schwarz, Peter 2006 978-3-540...: Faye, Jan; Needham, Paul; Scheffler, Uwe; Urchs, Max Vigoreaux, Jim O. 2006..., Margie; de Bot, Kees; Hasebrink, Uwe Humphrys, Graham; Williams, Michael 2007... Gastrointestinal Tissues Hooper, Nigel M.; Lendeckel, Uwe 2006 978-1-4020-4482-3 978... the Brain Hooper, Nigel M.; Lendeckel, Uwe 2005 978-0-387-23100-6 978...-7 Quantum Independent Increment Processes I Franz, Uwe; Schuermann, Michael 2005 978-3-540... Independent Increment Processes II Franz, Uwe; Schuermann, Michael 2006 978-3-540...-7 Reasoning Web Antoniou, Grigoris; Aßmann, Uwe; Baroglio, Cristina; Decker, Stefan; Henze...-3-540-28749-0 Software Engineering 1 Assmann, Uwe; Gschwind, Thomas; Nierstrasz, Oscar Bjorner... Soft Matter Kalliadasis, Serafim; Thiele, Uwe 2007 978-3-211-69807-5 978...-3-540-32398-3 Möller, Bernd; Reuter, Uwe 2007 978-3-540-37173-1 978... Immunological Disorders Mondino, Bartly; Pleyer, Uwe 2005 978-3-540-20045-1 978...-2 Uveitis and Immunological Disorders Pleyer, Uwe; Foster, C. Stephen 2007 978-3-540... in Schools Denmark, Florence; Gielen, Uwe; Krauss, 2005 978-0-387-23199...



Дата загрузки: 2017-03-09
Скачать документ
Скачать текст
0.1/5
... Eighth-Brick DC/DC Converters T UWE Series "Eighth-Brick" DC/DC... 0.9 by 2.3 by 0.38 inches, the UWE series open frame DC/DC... ±10% of nominal voltage. The UWE series are functionally complete. A wealth...” technique upon fault removal. The UWE is certified to standard... Series.C05 Page 1 of 23 UWE Series Wide Input, Isolated Eighth...) IIN, full load (A) Min. Typ. UWE-3.3/20-Q12 3.3 20 66 80...figuration part numbers: 1) UWE-12/6-Q48NB-C-CIS 2) UWE-12/6-Q48NBL1-C-CIS www... Series.C05 Page 2 of 23 UWE Series Wide Input, Isolated Eighth... MODELS UWE-3.3/20-Q12 UWE-5/15-Q12 UWE-12/6-Q12 UWE-15/5-Q12 UWE-24... Series.C05 Page 3 of 23 UWE Series Wide Input, Isolated Eighth..., CONTINUED DYNAMIC CHARACTERISTICS UWE-3.3/20-Q12 UWE-5/15-Q12 UWE-12/6-Q12 Dynamic...) to ±1% of final value UWE-15/5-Q12 UWE-24/3-Q12 50 Start..., Q48 MODELS UWE-3.3/20-Q48 UWE-5/15-Q48 UWE-12/6-Q48 UWE-15/5-Q48... Series.C05 Page 4 of 23 UWE Series Wide Input, Isolated Eighth..., Q48 MODELS, CONTINUED OUTPUT UWE-3.3/20-Q48 UWE-5/15-Q48 Voltage output... protection, Volts (via magnetic feedback) UWE-15/5-Q48 See ordering guide... Series.C05 Page 5 of 23 UWE Series Wide Input, Isolated Eighth... UWE-3.3/20-Q12 1,248,001 Input Voltage UWE-5/15-Q12 1,847,009 UWE-5/15-Q48 2,273,212 UWE-12/6-Q12 UWE...,165 Input Reverse Polarity Protection UWE-24/3-Q12 3,294,026 Output... +15V max. See Fuse section. UWE-12/6-Q48 828,714 Storage... normal operation. -55 to +125° C. UWE-15/5-Q48 2,112,625 Lead Temperature See soldering specifications UWE-24/3-Q12 2,623,370 CALCULATED... 4B) UWE-3.3/20-Q12 1,089,141 UWE-5/15-Q12 1,936,627 UWE-5/15-Q48 1,657,518 UWE-12... this maximum baseplate temperature. 18 UWE-24/3-Q12 undervoltage shutdown of... is at half load. 19 UWE-24/3-Q12 output overvoltage protection... Series.C05 Page 6 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-3.3/20-Q12N Efficiency vs... 18 20 Load Current (Amps) UWE-3.3/20-Q12N Maximum Current Temperature... 80 85 90 Ambient Temperature (°C) UWE-3.3/20-Q12N Maximum Current Temperature... Series.C05 Page 7 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-3.3/20-Q48P Efficiency vs... 80 85 90 Ambient Temperature (°C) UWE-3.3/20-Q48P Maximum Current Temperature... Series.C05 Page 8 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-5/15-Q12N Efficiency (%) Ef... 14 15 Load Current (Amps) UWE-5/15-Q12N Maximum Current Temperature... Series.C05 Page 9 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-5/15-Q48P Efficiency vs... 14 15 Load Current (Amps) UWE-5/15-Q48N Maximum Current Temperature... 80 85 90 Ambient Temperature (°C) UWE-5/15-Q48N Maximum Current Temperature....C05 Page 10 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-12/6-Q12N Efficiency vs... 4 76 74 3 72 2 70 68 1 1 2 3 4 5 6 1 2 3 4 UWE-12/6-Q12N Maximum Current Temperature... 80 85 90 Ambient Temperature (°C) UWE-12/6-Q48P Efficiency vs....C05 Page 11 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-12/6-Q48P 6.5 6.5 6.0 6.0 Output Current (Amps... 90 Ambient Temperature (°C) Ambient Temperature (°C) UWE-12/6-Q48P Maximum Current Temperature... 75 Ambient Temperature (°C) Ambient Temperature (°C) UWE-15/5-Q12P Efficiency vs....C05 Page 12 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-15/5-Q12N Maximum Current Temperature... 35 40 45 Ambient Temperature (°C) UWE-15/5-Q12N Maximum Current Temperature... 65 70 75 Ambient Temperature (°C) UWE-15/5-Q48 Efficiency vs....C05 Page 13 of 23 UWE Series Wide Input, Isolated Eighth... DC/DC Converters PERFORMANCE DATA UWE-15/5-Q48 Power Dissipation vs... 75 80 85 Ambient Temperature (°C) UWE-15/5-Q48 6 6 5 5 0.5 to 2.0 m/s (100 to... 30 35 40 45 50 UWE-15/5-Q48 6 6 5 5 Output Current (Amps... DC/DC Converters PERFORMANCE DATA UWE-24/3-Q12P Efficiency vs... Currentt (Amps) 0.5 1 1.5 2 2.5 3 Load Currentt (Amps) UWE-24/3-Q12P Maximum Current Temperature... 80 85 90 Ambient Temperature (°C) UWE-24/3-Q12N Maximum Current Temperature...–84 pc quantity SHIPPING TRAY UWE modules are supplied in a 21... polarity reversals exist. For MPS UWE DC/DC Converters, you should.../output capacitance, and load. The UWE Series implements a soft start circuit... load capacitance. Input Source Impedance UWE converters must be driven from... Noise All models in the UWE Converters are tested/specified... polarity. Minimum Output Loading Requirements UWE converters employ a synchronous-rectifier... rising to excessive levels. The UWE is capable of enduring an... Figure 5. + Vcc Thermal Shutdown These UWE converters are equipped with thermal... Specifications. Output Overvoltage Protection UWE output voltages are monitored for... the converter. Trimming Output Voltage UWE converters have a trim capability that... Connections To Decrease Output Voltages UWE series converters have a sense feature... Eighth-Brick DC/DC Converters UWE series converters will compensate for... increasing output power beyond the UWE’s specified rating or cause...



Дата загрузки: 2017-10-09
Скачать документ
Скачать текст
0.63/5
... Determination for the Pico-Satellite UWE-2 Marco Schmidt, Karthik Ravandoor, Oliver... discussed at the example of UWE (University of Wuerzburg Experimental satellite... technology demonstration and space research. UWE-1 is in orbit since October... telecommunication experiments. The successor satellite UWE-2 is focusing on an advanced... be solved. pico-satellites. The UWE-1 satellite (University Wuerzburg’s Experimental Satellite... and noise levels. The successor UWE-2 (c.f. Fig. 1) was developed in 2007... paper the basic architecture of UWE-2 system is introduced in chapter... are summarized in chapter 5. 2. THE UWE-2 ELECTRICAL SYSTEM DESIGN Fig. 1. The pico-satellite UWE-2 during vibration test. For this.../$20.00 © 2008 IFAC The UWE-2 mission emphasizes technology tests on... coordination of satellite swarms. The UWE platforms are an integral element... highly integrated electronic boards inside UWE-2 Special attention was paid to... spectrum of applications and protocols. UWE uses the uClinux operating system... an appropriate attitude determination on UWE-2, the pico-satellite was equipped... the satellite’s reference frame. The UWE-2 satellite carries six pairs of...-board the absolute position of UWE-2 is determined by a GPS receiver... al., 2008) was integrated in UWE-2 providing accurate time and position.... Fig. 3. Structure layout of the UWE-2 satellite The power is generated... bands (VHF/UHF). The first UWE satellite platform was launched in... on a similar electrical configuration. For UWE-2 main emphasis was on the... The attitude determination system of UWE comprises of the orbit generation... environment. The perturbations considered for UWE's orbit generator are third-body.... 5. Functional block diagram of the UWE-2 attitude determination system The attitude... frame. The attitude parameterization for UWE is done using the quaternions... functions. At the heart of UWE's attitude estimation algorithm is the... filter. The EKF used in UWE-2 is multiplicative. This implies that... angle. Salient features of the UWE-2 ADS include: • The hybrid orbit.... Barza, R., Y. Aoki, K. Schilling (2006), Cubesat UWE-1 – Technology Tests and in Orbit... -487. Schilling, K., R. Barza, D. Ziegler (2005), UWE-1, der erste deutsche Pico-Satellit...-Orbit Experiments on the PicoSatellite UWE-1, In: Proceedings 57th International Astronautical... on Orbit Operation Results of UWE-1, In : 57th International Astronautical Congress...



Дата загрузки: 2017-10-09
Скачать документ
Скачать текст
0.14/5
..., Human Resources and Communications; ◾◾ Gerd-Uwe Baden, Member of the Board... on April 1, 2009. ◾◾ Mr. Gerd-Uwe Baden, member of the Board... Development and Partnerships Mr. Gerd-Uwe Baden is a graduate in law... Private Clients department. Mr. Gerd-Uwe Baden was appointed Chairman of... (since 11/19/2013) Gerd-Uwe Baden ◾◾ Euler Hermes North America... 1,169.04 1,195.50 Gerd-Uwe Baden, Board of Management member... Verstraete since April 1, 2009 Gerd-Uwe Baden since May 25, 2004... since April 1, 2009 3,621 Gerd-Uwe Baden since May 25, 2004... 223.60 (in € thousands) Gerd-Uwe Baden, Board of Management member... Exercise period Wilfried Verstraete Gerd-Uwe Baden Frédéric Bizière... Exercise price Wilfried Verstraete Gerd-Uwe Baden Frédéric Bizière... n/a n/a n/a n/a n/a Full name Wilfried Verstraete Gerd-Uwe Baden Type of transaction EULER... Performance conditions Wilfried Verstraete Gerd-Uwe Baden Frédéric Bizière... the period Wilfried Verstraete Gerd-Uwe Baden Frédéric Bizière... Registration Document Wilfried Verstraete n/a n/a n/a Gerd-Uwe Baden (2) 9,000 10,000 7,000.../2009-03/31/2016 • Gerd-Uwe Baden Board of Management member... plan. Wilfried Verstraete and Gerd-Uwe Baden are eligible for the... and € 630,863 for Gerd-Uwe Baden). The increase in contributions for Gerd-Uwe Baden is due to an... Mr. Wilfried Verstraete, Mr. Gerd-Uwe Baden, Mr. Frédéric Bizi... members: ◾◾ Wilfried Verstraete, Chairman; ◾◾ Gerd-Uwe Baden; ◾◾ Frédéric Bizière... be noted that Mr. Gerd-Uwe Baden has retired and Mr... fixed salary); ◾◾ 62% for Gerd-Uwe Baden (i.e. 161% of the fixed... Germany. Wilfried Verstraete and Gerd-Uwe Baden are eligible for the... the combined Ordinary Mr. Gerd Uwe BADEN, member of the Board... severance compensation for Mr. Gerd-Uwe Baden, member of the Board... in favor of Mr. Gerd‑Uwe Baden Person concerned: Mr. Gerd-Uwe Baden The Supervisory Board decided ... severance compensation to Mr. Gerd-Uwe Baden, Board of Management member... 31, 2015 to Mr. Gerd-Uwe Baden, Mr. Frédéric Bizi... 31, 2015 to Mr. Gerd-Uwe Baden, Mr. Frédéric Bizi... 31, 2015 to Mr. Gerd-Uwe Baden, Mr. Frédéric Bizi...



Дата загрузки: 2017-05-21
Скачать документ
Скачать текст
0.05/5
... Kulturwissenschaftlichen Instituts im Wissenschaftszentrum NRW Uwe Samulewicz, Vorstandsvorsitzender der Stadtsparkasse Dortmund... EF 50 3.306 4071 Harder, Uwe EF 50 3.305 4187 ZB... EF 50 3.306 4071 Harder, Uwe EF 50 3.305 b 4187 Wederhake...: Lehrstuhl Weiterbildungs- und Sozialmanagement Wilkesmann, Uwe, Univ.-Prof. Dr. Email: wso... 2626 Gebäude Leiter: Schwiegelshohn, Uwe, Univ.-Prof. Dr.-lng. Abteilung Informationstechnik Schwiegelshohn, Uwe, Univ.-Prof. Dr.-lng. Lohbergstr. 69, 58313 Herdecke e-mail: uwe.schwiegelshohn@udo.edu Oberingenieur: Yahyapour... lnstitutsleiter: Univ.-Prof. Dr.-lng. Uwe Clausen Telefon: (0231) 97 43... Umwelt Univ.-Prof. Dr.-lng. Uwe Clausen Tel.: (0231) 9743-400..., (All) Cottbus Prof. Dr.-lng. Uwe Meinberg Tel.: (0355) 694581 Anwendungszentrum... Paas, Dortmund Dipi.-Spk.-Bw. Uwe Samulewicz, Dortmund Dr. Manfred Scholle.... rer. nat. Akademischer Rat: Zachwieja, Uwe, PD Dr. rer.nat. Wissenschaftliche.... C1-06 102 3922 Boetcher, Uwe, Dipi.-Chem. C1-05 405... 4779 Repro-Zentrum: Grützner, Uwe 392 Campus Süd Gebäude Raum.... GBII 405 4842 Schönfelder, Uwe, Dipl.-lng. GBII 406 2534... 0.233 2194 0.235 7182 I: Uhlendorff, Uwe, Prof Dr. PRODEKAN 0.234 II....: (02373) 83291 230 5508 Lehmpfuhl, Uwe, Dr. paed. Sonnenstr. 200, 44137...-dortmund.de 1.107 4175 Uhlendorff, Uwe, Prof Dr. Am Bergbaumuseum 50...-dortmund.de 2.213 2840 Kleinbeck, Uwe, Prof., Dr.phil., Dipi.-Psych...



Дата загрузки: 2017-06-15
Скачать документ
Скачать текст
0.08/5
... Attitude Control for pico-satellite UWE-4 Siddharth Dadhich 2015 Master of... Attitude Control for pico-satellite UWE-4 written by Siddharth Dadhich November... Dadhich) iv Contents Abstract 1 1 Introduction 1.1 UWE . . . . . . . . . 1.1.1 UWE - 3 . . . 1.1.2 UWE - 4 . . . 1.2 Vacuum arc thrusters 1.3 State of... Figures 1.1 1.2 1.3 Structural overview of UWE-4 . . . . . . . . . . . . . . . . . . . . . . Design model of UWE-4 showing thruster locations... . . . . . Simulated gyroscopic data (left) vs UWE-3 gyro measurements Simulated Magnetometer Data... result from simulation (left) vs UWE-3 de-tumbling experiment result (right... 57 Hardware architecture of UWE-4[1] . . . . . . . . . . . . . . . . . . . 60 Abstract UWE-4 is the fourth pico-satellite satellite in UWE series. After the successful launch... implemented to fly on-board UWE-4. Difficulties with using SGP-4 orbit... program and the fourth satellite UWE-4 is under development. This thesis... and attitude control software for UWE-4. 3 Chapter 1 Introduction Large Small Large... of satellites according to size 1.1 UWE UWE (Universität Würzburg Experimentalsatellit), is a satellite... satellites in this program were UWE-1 and UWE-2 which were launched in 2005 and 2009 respectively. All UWE satellites are 1U cubesats. Cubesats... this field at other universities. 1.1.1 UWE - 3 UWE-3 was launched in Nov 2013...) for picosatellites. For attitude determination, UWE-3 has sun sensors, gyros and... Kalman filter. For attitude control, UWE-3 has six magnetic torques mounted... UWE-3. 1.1.2 UWE - 4 UWE-4 program started after the successful operation of UWE-3. The aim for UWE... in sec. 1.2. A structural overview of UWE-4 is shown in Fig. 1.1 which... in the Fig. 1.1. 4 1.1 UWE 1 9 2 3 4 5 6 8 7 Figure 1.1: Structural overview of UWE-4 Description of different... UWE-4 is under discussion. UWE-4 will inherit the attitude determination system from UWE... dimensional plane. A design model of UWE-4 pointing the location of the... 2 Thruster 3 Figure 1.2: Design model of UWE-4 showing thruster locations For working.... 2.2 for visualization of BCF for UWE-4. 10 2.1 Coordinate frames and attitude... angular velocity. 14 2.3 Sensor models 0.5 UWE−3 ω ( deg/s) 0 0 x Simulated ωx (deg/s) 0.5 −0.5 −1 0 20 40 60 Time (min) 80 −0.5 −1 0 100 UWE−3 ω ( deg/s) 100 0.5 y Simulated ωy (deg/s) 0.5 0 −0.5 0 −0.5 −1 −1 20... 60 Time (min) 80 100 1.5 1.5 1 UWE−3 ωz ( deg/s) 1 Simulated ωz (deg/s) 80 1 1 0.5 0 −0.5 0.5 0 −0.5 −1 −1 −1.5 0 40... 2.5: Simulated gyroscopic data (left) vs UWE-3 gyro measurements (right) 2.3 Sensor models... the attitude determination software for UWE-3 was developed as a part of...) is shown against measurements from UWE-3 gyros (right) to establish the... magnetic field offset obtained from UWE-3 measureT ments is −6.1527 5.3040... with improvements in design of UWE-4 over UWE-3, the residual magnetic disturbance... the useful coordinate systems for UWE-4 is also provided. Attitude dynamics... sensors and actuators present in UWE-4 are modeled. Disturbance sources are... crucial for formation flying missions. UWE-3 uses a standard SGP-4 implementation for... orbit propagator is required for UWE-4, which can incorporate the effect... attitude control problem defined for UWE-4 is a two-axis control (Y and... actual B-dot experiment data from UWE-3 is shown in sec. 5.1. 4.3.2 Two... attitude control software developed for UWE-4. Given there is no requirement... de-tumbling experiment done on UWE-3. A full magnetic and a full thruster... 5.1 B-dot simulation The data from UWE-3 de-tumbling experiment provided a good... result from simulation (left) vs UWE-3 de-tumbling experiment result (right... SMC should be implemented on UWE-3 for comparing the simulation performance... performance, before using it in UWE-4. The initial angular velocity for... over traditional PD control for UWE-4. 5 ωx (deg/s) φ (deg) 200 100 0 −100... chapter addresses the architecture of UWE-4 hardware and implementation of the... an isotropic Kalman filter. For UWE-4, the isotropic Kalman filter implementation... 6 Implementation Figure 6.1: Hardware architecture of UWE-4[1] Texas Instruments MSP430. C-language is... the programming language for previous UWE missions and it will continue... chapter, the hardware architecture for UWE-4 which is under development is... initial chapters. The data from UWE-3 sensors have been used extensively... and orbit control of UWE-4. 7.2 Future work Since UWE-4 is a state of... magnetic field is used. For UWE-4 mission, a precise attitude control is..., and A. Kramer, “Design of the uwe-4 picosatellite orbit control system using...] F. Reichel, “Attitude control system of uwe-3: Design, testing and veri cation...] S. Busch, P. Bangert, S. Dombrovski, and K. Schilling, “Uwe-3, in-orbit performance and lessons...] P. Bangert, “Attitude determination system of uwe 3 - development, test and verification,” Master.... [32] A. Kramer, S. Dadhich, J. Bahr, and S. S., “Uwe-4 software developmentsimulation and data analysis... Federal Armed Forces in Munich UWE Universität Würzburg Experimentalsatellit VAT Vacuum...



Дата загрузки: 2017-10-09
Скачать документ
Скачать текст
0.4/5
Pico satellite activities of the University of Wuerzburg Dipl -Inform Marco Schmidt Dipl.-Inform. www7.informatik.uni-wuerzburg.de The UWE pico satellite project X UWE = University of Wuerzburg Experimental satellites X General Objectives of the UWE Project: ƒ Building small satellites for education – Students can design and develop a complete satellite in their curriculum – Interdisciplinary groups are working together to realize a complex project ƒ Developing technologies for small satellites ƒ Building small satellites for space research Nano Satellite Symposium Marco Schmidt 2 The UWE pico satellite project X Long term research objective ƒ Operating swarms of small satellites ƒ Intelligent swarm behaviour X To achieve this g goal, a step p by y step p strategy gy is followed Nano Satellite Symposium Marco Schmidt 3 The UWE pico satellite project UWE X ƒ High Data Rates ƒ Attitude Control ƒ Formations ƒ Ad-Hoc Networks ƒ … 201? UWE-3 ƒ Attitude Control ƒ … 2009 UWE-2 ƒ Attitude- and Orbit Determination 2005 UWE-1 ƒ Telecommunication Nano Satellite Symposium Marco Schmidt 4 Cubesat UWE-1 UWE-1 was launched 2005 as research satellite Dimensions: Size: 1 dm³, Weight: 977 ((complies p to Cubesat standard)) Scientific aim: X IP communication experiments: X Communication tests to characterize the radio link Secondary objectives X Experiments for in-orbit tests of h d hardware ((e.g. solar l cells) ll ) Nano Satellite Symposium Marco Schmidt 5 Cubesat UWE-1 X Launch on 27. Oktober 2005 as payload on the ESA student satellite SSETI-Express SSETI Express X Integrated in T-POD launch adapter X UWE-1 UWE 1 orbit is a sunsynchronous, polar orbit Further cubesats on SSETI Express: Ncube, Cubesat XI-IV SSETI Express Cosmos 3M rocket Nano Satellite Symposium Marco Schmidt 6 Cubesat UWE-1 X Technology demonstration: Test of highly efficient GaAs solar cells from industry X UWE-1 UWE 1 tested these solar cells for the first time under space conditions Produced energy from the solar cells Nano Satellite Symposium Marco Schmidt 7 Cubesat UWE-1 X Tests related to communiction and Internet Protocols (IP) Nano Satellite Symposium Marco Schmidt 8 Cubesat UWE-2 Supported from DLR (FKZ 50RU0704) Nano Satellite Symposium Marco Schmidt 9 Cubesat UWE-2 X University of Wuerburg Experimental satellite 2 X Launched succesfully 23. September 2009 X Scientific aim ƒ Verification of the newly developed Attitude Determination System (ADS) ƒ Testing the performance of the integrated Phoenix GPS receiver Nano Satellite Symposium Marco Schmidt 10 Cubesat UWE-2 Nano Satellite Symposium Marco Schmidt 11 Cubesat UWE-2 Nano Satellite Symposium Marco Schmidt 12 Cubesat UWE-3 X 3rd satellite of the UWE series X Currently backup for the Vega Maiden fli ht flight X Scientific aim: ƒ Verify simple actuation for attitude control X Planned secondary objective: ƒ Testing new prototype dosimeter Nano Satellite Symposium Marco Schmidt 13 Cubesat UWE-3 X Radio Subsystem ƒ custom design ƒ compact, t efficient ffi i t ƒ unrestricted access ƒ comprehensive configuration enables flexible adjustments to varying orbital conditions X Thermal & Structure ƒ various optimizations ƒ mass ƒ assembling bli ƒ support for CAD based th thermal l simulation i l ti Nano Satellite Symposium Marco Schmidt 14 Danke! X Thank You! asdf FKZ 50RU0704 www7.informatik.uni-wuerzburg.de



Дата загрузки: 2017-09-24
Скачать документ
Скачать текст
0.33/5
... Ronald Schlimper *1 Carsten Strobach Jens-Uwe Weiß *2 Manuel Wassersleben Mathias Hähnel... Karl-Heinz Jäger Gerald Heß Uwe Freitag Sören Mörstedt Gesamt KV... Manuel Wassersleben Mathias Hähnel Jens-Uwe Weiß Thomas Henneke Carsten Strobach... Gerhard Gams Carsten Strobach Jens-Uwe Weiß Ronald Schlimper Thomas Henneke... Manuel Wassersleben Mathias Hähnel Jens-Uwe Weiß Thomas Henneke Ronald Schlimper... Carsten Strobach Mathias Hähnel Jens-Uwe Weiß Thomas Henneke Bernd Sch... Ronald Schlimper Thomas Henneke Jens-Uwe Weiß Gesamt PZ 7 1 5 4 8 12 V 603... Gerhard Gams Carsten Strobach Jens-Uwe Weiß Ronald Schlimper Thomas Henneke... Jäger Gerald Heß Norbert Graul Uwe Freitag Sören Mörstedt Gesamt Gesamt... Gerhard Gams Thomas Henneke Jens-Uwe Weiß Ronald Schlimper Gesamt V 629... Jäger Gesamt KV Wolfsburg Jens-Uwe Weiß Gerhard Gams Carsten Strobach... Mörstedt Gesamt KV Wolfsburg Jens-Uwe Weiß Manuel Wassersleben Mathias Hähnel... Ronald Schlimper Thomas Henneke Jens-Uwe Weiß Mathias Hähnel Stefan Janke... Thomas Henneke Ronald Schlimper Jens-Uwe Weiß Mathias Hähnel V 610 634... Rinaldo Schaller Karl-Heinz Jäger Uwe Freitag 04.02.2012 V 601... Gerhard Gams Carsten Strobach Jens-Uwe Weiß Ronald Schlimper Mathias Hähnel... Ronald Schlimper Thomas Henneke Jens-Uwe Weiß Gesamt PZ 7 12 2 11... 3618 1957 KV Wolfsburg Jens-Uwe Weiß Gerhard Gams Carsten Strobach... Mathias Hähnel Carsten Strobach Jens-Uwe Weiß Ronald Schlimper Thomas Henneke... Carsten Strobach Ronald Schlimper Jens-Uwe Weiß Mathias Hähnel 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. A 354... Mathias Hähnel Michael Zimmer Jens-Uwe Weiß Detlef Schmidt Steffen Erfurth... Stopp Tobias Bieberbach Kurt Moser Uwe Freitag Jürgen Ußling Christian Heim...



Дата загрузки: 2017-03-10
Скачать документ
Скачать текст
Скачать перевод
Посмотреть билингву
0.1/5
..., which have been tested with UWE-satellites in orbit, and reports... the University Würzburg's Experimental satellites (UWE) program (Schilling 2006, Schilling et... on basis of Internet Protocols (UWE-1, launched 2005) (Barza et al. 2006), attitude determination (UWE-2, launched 2009) (Schmidt et al. 2009) and attitude control (UWE-3, launched 2013) (Bangert et al... launch on 21.11.2013 UWE-3 successfully performed attitude control experiments...). At the end of 2014 UWE-4 it is planned to emphasize.... 1. Artist impression of UWE-3 in orbit 2. THE UWE PICO-SATELLITE PROGRAM The... the University Würzburg’s Experimental satellites (UWE) program (Schmidt / Schilling 2010) a technology... mass level. 2.1 UWE-1 and -2 The first German pico-satellite UWE-1 (launched 2005... an attitude determination capability with UWE-2 (launched 2009 by an Indian... (Schmidt et al. 2009). 2.2 The UWE-3 Satellite Design The main scientific objective for UWE-3 was realisation of attitude control..., which is suitable for future UWE multi-satellite missions due to... was specifically addressed by the UWE-3 satellite bus design emphasizing flexibility... of the thermal layout. The UWE pico-satellite electrical system uses... increasing performance needs. (a) (b) (c) Fig. 2. The UWE architecture is based on the... magnetometers, as tested in the UWE-2 mission (Schmidt et al. 2009... the solar arrays. Fig. 4. The UWE-3 very small reaction wheel The... torquers and the reaction wheel), UWE-3 is placed in a ball floating... the attitude determination properties. 2.3 The UWE-4 Mission Technology development in electrical... orbit end of 2014 by UWE-4. This satellite inherits most components from UWE-3, taking advantage of its modular... derived from drift observations of UWE-2 and its 3 passive CubeSat companions... also attitude control functionality. Fig. 7. UWE-4 vacuum arc thruster propulsion system..., supervising and coordinating all subsystems. 4. UWE-3 IN-ORBIT TEST RESULTS On... about 700 km altitude, including UWE-3. All systems and commercial-of... satellite’s spin rate In the UWE pico-satellite program the key... systems are addressed. So far, UWE-1 to -3 tested in orbit communication... integrated and tested in orbit. UWE-3 demonstrated in-orbit the performance... future missions. End of 2014 UWE-4 will test a micro arc thruster... the team members in the UWE pico-satellite projects, as well...- und Lageregelungssystems für den Pico-Satelliten UWE-3. Deutscher Luft- und Raumfahrtkongress 2012... K. Schilling, Performance Characteristics of the UWE-3 Miniature Attitude Determination and Control...-07 Barza, R., Y. Aoki, K. Schilling; Cubesat UWE-1 – Technology Tests and in Orbit..., IAC-06-B5.3. Busch, S.; Schilling, K.; UWE-3: A Modular System Design for the... Determination for the Pico-Satellite UWE-2. Space Technology 28 (2009), pp...