Спутник навигационных систем. Beidou M1. [Редактировать]

BD 2M (Beidou 2M) и BD 2I (Beidou 2I) - это космические аппараты которые располагаются на средней и геостационарной орбите и составляют второй этап развития китайской клобальной навигационной системы. Условно данные аппараты разделены на две группировки одна из которых носит наименование Compass-M, а вторая Compass-I. Аппараты построены на основе платформы DFH-3 и оснащены как фазированной антенной для передачи сигналов так и лазерными рефлекторами.

Дополнительные наименования

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Дополнительная классификация

#Наименования
1Страна оператор(владелец) - Китай
2Тип оператора(владельца) - военные
3Тип орбиты - ГПО
4Страна производитель - Китай

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град53.5
2Апогей, км22464.6
3Перигей, км22454.3
4Период, минут812.0
5Длинный диаметр эллипса, км28830

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2007-011A

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2007-04-13 at 20:11:00 UTC
2Полезная нагрузка 1xBeidou M1
3Ракета-носитель 1xВеликий поход 3A

Найдено 118 документов по запросу «Beidou M1». [Перейти к поиску]


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0.08/5
... be profitable. Satellite Navigation China’s Beidou satellite navigation system is planned... differential Beidou, accuracy will be improved to one meter. Unlike GPS, Beidou... sent to other Beidou receivers. Similar to GPS, Beidou is first and..., including the mandatory installation of Beidou receivers on certain vehicles, to... their respective satellite navigation systems, Beidou and the Global Navigation Satellite... over China’s intentions with its Beidou satellite navigation system, the strategic... be limited.” Funding for the Beidou satellite navigation systems, however, appears..., 2001. 227 Zhang Ke, “’北斗’今起照耀亚太区 中国版 GPS 年创产值超千亿” [‘Beidou’ Begins to Cover Asia China...) in a Beidou industrial park.229 These funding figures suggest Beidou is one... the development of Beidou technologies to 2020. Like GPS, Beidou is fundamentally a military-run program with civilian applications. Beidou’s architecture... 8. Beidou launches Spacecraft Beidou-1A Beidou-1B Beidou-1C Beidou-1D Beidou-2 Compass-M1 Beidou-2 Compass-G2 Beidou-2 Compass-G1 Beidou-2 Compass-G3 Beidou-2 Compass-IGSO1 Beidou-2 Compass-G4 Beidou-2 Compass-IGSO2 Beidou-2 Compass-IGSO3 Beidou-2 Compass-IGSO4 Beidou-2 Compass-IGSO5 Beidou-2 Compass-G5 Beidou-2 Compass-M3 Beidou-2 Compass-M4 Beidou-2 Compass-M5 Beidou-2 Compass-M6 Beidou... GEO Like other programs, China’s Beidou navigation satellite program has followed... regional system, Beidou-1, in 2000 that became operational in 2003. Beidou-1 uses..., Beidou-2 also provides a short message service that allows communication between Beidou receivers. Military Use As Beidou’s capabilities improve, the... the GPS and Beidou signals. 411 Tu Yun, “BeiDou Has Better Accuracy... Liu Yanping, “探秘中国北斗导航卫星: 最高机密到民用历时 20 年” [Exploring China’s Beidou Navigation Satellite System: Top Secret...-06/20/c_121557752.htm. 413 “北斗副总师:没先进定位手段曾是心中说不出的痛” [Beidou Deputy Chief Designer: Not Having... Main Station Devoting Itself to Beidou], 新华 [Xinhua], Nov. 9, 2013. 415 “南京军区”使命行动 2013....htm. 417 “长剑-10 导弹配合北斗系统可毁万吨巡洋舰” [Missile Incorporates Beidou System and Can Destroy a 10... adoption of Beidou technologies. These include requiring the installation of Beidou receivers... semitrucks to have factory-installed Beidou receivers.418 Communication Satellites China... 423 “天链一号星和第四颗北斗导航试验卫星交付使用” [Tianlian-1 and the Fourth Beidou Navigation Satellite Handed Over for... on the Development of the BeiDou Satellite Navigation System (Version 2.2),” December... market.603 定位精确度达到 2.5 米” [The Fourth Generation Beidou High-performance Chip Positioning Accuracy... example, the designation of China’s Beidou satellite navigation system as “national... G-1 (Beidou G1) 1/16/10 Chinese Defense Ministry GEO 8 Compass G-10 (Beidou ISGO-5) 12/1/11 Chinese Defense Ministry GEO 8 Compass G-11 (Beidou G5) 2/24/12 Chinese Defense Ministry GEO 8 Compass G-3 (Beidou G3) 6/2/10 Chinese Defense Ministry GEO 8 Compass G-4 (Beidou G4) 10/31/10 Chinese Defense Ministry GEO 8 Compass G-5 (Beidou IGSO-1) 7/31/10 Chinese Defense Ministry GEO 8 Compass G-6 (Beidou 2-16) 10/25/12 Chinese Defense Ministry GEO 8 Compass G-7 (Beidou IGSO-2) 12/17/10 Chinese Defense Ministry GEO 8 Compass G-8 (Beidou IGSO-3) 4/9/11 Chinese Defense Ministry GEO 8 Compass G-9 (Beidou ISGO-4) 7/26/11 Chinese Defense Ministry GEO 8 Compass M1 (Beidou M1) 4/14... M3 (Beidou 2-12) 4/28/12 Chinese Defense Ministry Compass M4 (Beidou 2-13) 4/28/12 Chinese Defense Ministry Compass M5 (Beidou 2-14) 9/18/12 Chinese Defense Ministry Compass M6 (Beidou 2-15...



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0.12/5
...-constellation signal [16–18]. The BeiDou Navigation Satellite System (BDS) is... [17]. Table 1. Constellation of the BeiDou Navigation Satellite (BDS) regional system... BEIDOU M1 BEIDOU G2 BEIDOU G1 BEIDOU G3 BEIDOU G4 BEIDOU IGSO 1 BEIDOU IGSO 2 BEIDOU IGSO 3 BEIDOU IGSO 4 BEIDOU IGSO 5 BEIDOU G5 BEIDOU M3 BEIDOU M4 BEIDOU M5 BEIDOU M6 BEIDOU G6 BEIDOU I1-S BDS M1-S BDS M2-S BDS I2-S BDS M3-S BEIDOU IGSO 6 BEIDOU...: BeiDou Navigation Satellite System; GLONASS: Globalnaya Navigatsionnaya Sputnikovaya PPP. BDS: BeiDou Navigation...-time precise positioning: GPS, GLONASS, BeiDou, and Galileo. J. Geod. 2015, 89... systems: GPS, GLONASS, Galileo and BeiDou. Sci. Rep. 2015, 5. [CrossRef] [PubMed..., J. Precise point positioning using combined BeiDou and GPS observations. In China..., X. Precise point positioning with the BeiDou navigation satellite system. Sensors 2014... using GPS, Glonass, Galileo and BeiDou. J. Geod. Sci. 2014, 4. [CrossRef] ISPRS... positioning with quad-constellations: GPS, BeiDou, GLONASS and Galileo. Adv. Space... the positioning performance analysis of BeiDou in Hong Kong. Surv. Rev...



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0.06/5
... Date (UTC) Launch Time (UTC) BeiDou BeiDou GEO Xichang 12 June 2016... (SP); Around 1.246 GHz (SP) BeiDou China CDMA 35 (5 GEO, 30...-018A 38250 Beidou 2-12 (Compass M3) 2012-018B 38251 Beidou 2-13 (Compass.../04/2012 2012-050A 38774 Beidou 2-14 (Compass M5) China Chinese.../09/2012 2012-050B 38775 Beidou 2-15 (Compass M6) China Chinese.../09/2012 2012-059A 38953 Beidou 2-16 (Compass G-6) China Chinese Defense.../10/2012 2016-037A 41586 Beidou 2-23 (Compass G-7) China Chinese Defense.../06/2016 2015-019A 40549 Beidou 3I-1S China Chinese Defense.../03/2015 2015-053A 40938 Beidou 3I-2S China Chinese Defense.../09/2015 2015-037A 40748 Beidou 3M-1S China Chinese Defense.../07/2015 2015-037B 40749 Beidou 3M-2S China Chinese Defense.../07/2015 2016-006A 41315 Beidou 3M-3S China Chinese Defense... 1/02/2016 2010-001A 36287 Beidou G1 (Compass G-1) China Chinese Defense.../01/2010 2010-024A 36590 Beidou G3 (Compass G-3) China Chinese Defense... 2/06/2010 2010-057A 37210 Beidou G4 (Compass G-4) China Chinese Defense.../10/2010 2012-008A 38091 Beidou G5 (Compass G-11) China Chinese.../02/2012 2010-036A 36828 Beidou IGSO-1 (Compass G-5) China Chinese Defense.../07/2010 2010-068A 37256 Beidou IGSO-2 (Compass G-7) China Chinese Defense.../12/2010 2011-013A 37384 Beidou IGSO-3 (Compass G-8) China Chinese Defense... 9/04/2011 2011-038A 37763 Beidou IGSO-4 (Compass G-9) China Chinese Defense.../07/2011 2011-073A 37948 Beidou IGSO-5 (Compass G-10) China Chinese... 1/12/2011 2016-021A 41434 Beidou IGSO-6 China Chinese Defense Ministry.../03/2016 2007-011A 31115 Beidou M1 (Compass M1) China Chinese Defense Ministry...



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0.11/5
... GNSSs (GPS, Glonass, Galileo and Beidou) fundamentals and algorithms. The second... Signals . . . . . . . . . . . . . . . . . . . . . 26 2.2.3 Galileo Signals . . . . . . . . . . . . . . . . . . . . . 30 2.2.4 Beidou Signals . . . . . . . . . . . . . . . . . . . . . 35 2.2.5 Summary of GNSS... . . . . . . . . . 3.3.1 Computation of GPS, Galileo and Beidou Satellite Coordinates . . . . . . . . . . . . . . . . . . . . . . . 57 3.3.2 Computation of... GNSSs (i.e. GPS, Glonass, Galileo and Beidou). The GNSS segments are presented... Documents (ICDs). GPS, Galileo or Beidou coordinates are computed from the... systems (GPS, Glonass, Galileo and Beidou), they are presented in general... Chinese BeiDou and European Galileo systems are currently under development, although Beidou... system (e.g. GPS, Glonass, Galileo and Beidou) that provides continuous positioning over... IOV (bottom left) and Beidou-M (bottom right). The Beidou (Compass)6 constellation (Phase... and Beidou systems is presented below (see also Fig. 2.2).8 6 BeiDou is the... regional system BeiDou-1, which became operational in May 2003. But BeiDou-2/3, i.e. Phase... Galileo. Nevertheless, backward compatibility with BeiDou-1 is assured by the inclusion.... 2.1.1.2.4 Beidou Satellites There are three variants of Beidou satellites: the geostationary Beidou-G, the geosynchronous Beidou-IGSO and the MEO Beidou... and Technology Corporation). The first Beidou Phase II satellite in orbit... China had put four Beidou-G and five Beidou-IGSO satellites into orbit..., with 10 orbiting satellites, the Beidou system formally started to provide... 2020 (Phase III, global service) [BeiDou-SIS-ICD, 2012]. 2.1.2 Control Segment... system. 2.1.2.4 Beidou Control Segment There is little information on the Beidou ground... Figure 2.6: GPS, Glonass, Galileo and Beidou navigational frequency bands. Upper L-Band... be interoperable with the Chinese Beidou system. In December 2010 there..., but new satellite navigation providers (Beidou in China, QZSS in Japan... service guarantees Commercial Service Global Beidou Signals Beidou Phase II/III satellites... version’ of the ICD for Beidou [BeiDou-SIS-ICD-Test, 2011] was... Open Authorised Authorised Table 2.12: Beidou Phase III navigation signals. [United... 2.2.4.1 User Domain Beidou Performances Since 27 December 2011, Beidou has provided an... the launching plan for the Beidou system, four more navigation satellites... (Beidou Phase III). The expected open free service performances in Beidou Phase... the GPS, Glonass, Galileo and Beidou (Compass) signals. Courtesy of Stefan... that, unlike GPS, Galileo or Beidou, the Glonass time scale implements... Coordinate System 2000 (CGCS2000) for Beidou. 3.1.2.1 Transformation between Celestial and Terrestrial...’s own GTRF system. 3.1.3.4 Beidou Reference Frame (CGCS2000) The Beidou system adopts CGCS2000... excentricity is taken as e = 0 . i GPS Beidou Galileo Glonass 1 second ◦ 55.0 55... perigee produced by J2 . GPS Beidou Galileo Glonass i 1 second 1 day 1 year... and Beidou are provided as follows. 3.3.1 Computation of GPS, Galileo and Beidou Coordinates Table 3.8 lists the GPS, Galileo or Beidou broadcast ephemeris... and Beidou satellites follow the same scheme. Table 3.8: GPS/Galileo/Beidou broadcast...-23/1 Table 3.11: GPS/Galileo/Beidou broadcast almanac parameters. Parameter ID... i = 56◦ (Galileo) or i = 54◦ (Beidou MEO) or i = 0◦ (Beidou GEO) Longitude of ascending... f (from GPS, Glonass, Galileo or Beidou): RPf = ρ+c(dtrcv −dtsat )+T r+αf ST EC... 3.3.1 for the GPS, Galileo or Beidou satellites, and in section 3.3.2 for... For broadcast GPS, Galileo or Beidou orbits, the orb program corresponds... case of GPS, Galileo or Beidou satellites, the satellite clock offset.... Unlike in GPS, Galileo or Beidou relativistic corrections to Glonass orbital... ratio. 5.4.1.2.1 Klobuchar Model GPS and Beidou satellites broadcast the parameters of... βn broadcast in the GPS or Beidou satellite navigation message:25 Vertical... also broadcast in the Beidou NAV message [BeiDou-SIS-ICD, 2012]. 24... (αi , βi , i = 0, . . . , 3) broadcast in the GPS and Beidou navigation messages. A map with the... the GNSS (GPS, Glonass, Galileo, Beidou) signals. This correction is required.../1 geocentric latitude φ and longitude λ: 2 R ωE E h sin 2φ (m1 cos λ + m2 sin λ) 2g ω 2 RE... Information Interchange A/S Anti-Spoofing BDT BeiDou Time BIPM Bureau International des....html. [BeiDou-SIS-ICD, 2012] BeiDou-SIS-ICD, 2012. Technical report. BeiDou Navigation.... [BeiDou-SIS-ICD-Test, 2011] BeiDou-SIS-ICD-Test, 2011. Technical report. BeiDou... and GNSS under Development 2 – Compass/Beidou, IRNSS and QZSS. ESA International..., 11 Oscillator, 4 Bancroft method, 97 Beidou, 22 Constellation, 9 Control segment, 17.../Beidou, 56 Fast convergence, 160 Navigation signals Linear observation model, 152 Beidou... Precise Positioning Service GPS, 23 Beidou, 35 Navigational frequency bands Glonass..., Reference frame, 39, 42 54 Beidou, 49 Selective Availability, 10, 20... Reference system, 42 Beidou, 35 Reference time Galileo, 35 Beidou, 41 Glonass...



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... Precise Orbit Determination of the BeiDou Navigation Satellite System Lina He... regional service of the Chinese BeiDou satellite navigation system is now... the satellite orbits of the BeiDou regional system, we concentrate on... of data collected at the BeiDou Experimental Test Service (BETS) network... make the orbits better. Keywords: BeiDou; tracking network; precise orbit determination... COMPASS system, also known as BeiDou, is emerging and gaining more... the BeiDou system. The demonstrational system was established as the BeiDou-1, with... was officially announced by the BeiDou authorities at the end of... structure and analogous frequencies of BeiDou with respect to that of... and the European Galileo systems, BeiDou-capable multi-GNSS receivers were... since the first experimental satellite M1 (C30) was launched in 2007.... Hence, POD and PCD of BeiDou are also hot topics for... orbit arc is needed for BeiDou POD using its own phase... are strongly involved [2,7–9], and (2) only BeiDou data are employed [10,11... to demonstrate the capacity of BeiDou as an independent navigation system... attention on the performance of BeiDou system alone as an independent... are carried out using only BeiDou data from a regional tracking network... a large space for improvement on BeiDou POD, especially for the GEOs... progress in the quality of BeiDou products can be expected in... of the space segments. The BeiDou Experimental Test Service (BETS) network... The designed constellation of the BeiDou regional system is composed of... Table 1. Satellites of the current BeiDou constellation. Satellite PRN NORAD-ID...°E (55°) 96.5°E (55°) 92.5°E (55°) M1 M3 M4 M5 M6 C30... drifting unstably and unusable, and M1 was for signal testing and... Network The BETS network with BeiDou and GPS capacity has been... UR240 dual-frequency and GPS/BeiDou dual-system receivers and the... Figure 1. Ground tracks of the BeiDou satellites and distribution of the... the BeiDou authorities. During this period, two satellites G2 and M1 were... Wuhan University is adapted for BeiDou data analysis for this study... weak observing geometry. For the BeiDou regional system, GEO satellites have... important for the current regional BeiDou system. In this study we..., 13 2917 3.2. Models As the BeiDou system is very similar in... can be utilized directly for BeiDou with very slight modifications. Therefore... Table 3. Dynamic models involved for BeiDou orbit determination. Item Models Geopotential... orbit conditions are estimated from BeiDou range observations with receiver clock... which are special for the BeiDou regional system, and are achievable.... Aimed at possible improvements in BeiDou POD, we identified three topics.../or GLONASS systems. For the BeiDou regional system, its constellation consists... to the development schedule of BeiDou, GEOs and IGSOs are now... Galileo [7], the phase accuracy of BeiDou is of a comparable quality, whereas... about seven weeks BeiDou data of the BETS network, BeiDou POD is... on POD of the current BeiDou regional system. Sensors 2013, 13... the post-fit observation residuals, BeiDou has similar phase accuracy as... at Wuhan University and the BeiDou Authorities for providing the tracking...). References 1. 2. 3. 4. 5. 6. 7. China Satellite Navigation Office. BeiDou Navigation Satellite System Signal in..., X.; Liu, J. Precise orbit determination of BeiDou Satellites with precise positioning. Sci..., A.; Lo, S.; De, L.D.; Walter, T.; Enge, P. COMPASS-M1 broadcast codes in E2, E5b... S. Initial assessment of the COMPASS/BeiDou-2 regional navigation satellite system. GPS...



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0.18/5
....mdpi.com/journal/sensors Article BeiDou Inter-Satellite-Type Bias Evaluation... July 2013 Abstract: The Chinese BeiDou system (BDS), having different types... the differential ISTBs among three BeiDou satellite types and investigate their... of BeiDou enabled receivers and series of zero-baseline experiments with BeiDou... non-zero ISTBs between different BeiDou satellite types. We then analyse... impact of these biases on BeiDou-only attitude determination using the...: Global Navigation Satellite Systems (GNSS); BeiDou system (BDS); inter-satellite-type... ambiguity resolution 1. Introduction The Chinese BeiDou System (BDS), having different types... Asia-Pacific region. Analyses of BeiDou-based PNT solutions have been...-based studies in [3–7], analyses of BeiDou PNT with real data have... of BeiDou in single point positioning. With the recent release of BeiDou interface control document (ICD) [1], one can expect increased research on BeiDou... constrained (C-)LAMBDA method [41–49]. BeiDou-based attitude determination using identical... using single- and dual-frequency BeiDou observables. Assuming different receiver types... the differential ISTBs among three BeiDou satellite types. We develop an... BeiDou-enabled receivers, and the other is with zero-baseline using BeiDou... non-zero ISTBs between different BeiDou satellite types. We observe that... a priori estimated biases to correct BeiDou observations, so that one can... impact of these biases on BeiDou-only attitude determination using the... functional and stochastic model for BeiDou observations, with special attention to.... Section 3 formulates the quadratically-constrained BeiDou model for attitude determination and... non-zero ISTBs between different BeiDou satellite types using real data... this contribution. 2. BeiDou Observations This section presents the BeiDou observation model, distinguishing... different satellite types. Since the BeiDou system uses the code division... ordered, such that the first m1 satellites are of type 1, the... carrier-phase observations of two s s BeiDou receivers, r and 1, at frequency j from... paper is based on multiple BeiDou receivers forming very short-baselines...-type ,1β ,1β biases (ISTBs) for the BeiDou system if one uses mixed..., 13 9439 with: 1 1 1 m T 1 1 1 m T yp;j = 1 η 1 η 1 21 1 m1 1 12 1 m2 ∆p11r,j , . . . , ∆p11r,j , ∆p11r,j , . . . , ∆p11r,j , . . . , ∆p1r,j , . . . , ∆p1r,j yφ;j = 1 η 1 η 1 21 1 m1 1 12 1 m2 ∆φ11r,j , . . . , ∆φ11r,j , ∆φ11r...,j Gr = zj = gr11 21 , . . . , gr11 m1 , gr11 12 , . . . , gr11 m2 , . . . , gr11 1η , . . . , gr11 mη 1 1 T 1 m 11 21 11 m1 11 12 11 m2 1 η 1 η N1r...) T Dm Q,1 θ Dm1 −1 , 1 −1 ..., T Dm Q,η θ Dmη −1 η −1 (36) 3. BeiDou Attitude Determination Since attitude determination... antennas are connected to six BeiDou-enabled receivers, as summarised in... days from April 4 to 8, 2013. BeiDou satellite visibility for April 4 is... 9447 Figure 2. Satellite visibility of BeiDou satellites for Curtin Stations on... 3a) was connected to two BeiDou-enabled receivers (Trimble NETR9 and...). Figure 4 shows the visibility of BeiDou satellites on April 19, 2013... DELTA (b) Figure 4. Satellite visibility of BeiDou satellites for open space experiment... σφ0 aφ0 φ0 [mm] [deg] 15 2 p0 5 15 4.2. BeiDou Inter-Satellite-Type Bias (ISTB... can be used to calibrate BeiDou observations. In the following, we... phase ISTB [cyc] Figure 5. Estimated BeiDou differential ISTB for CUT0-CUT1... phase ISTB [cyc] Figure 6. Estimated BeiDou differential ISTB for CUT0-CUT2... phase ISTB [cyc] Figure 7. Estimated BeiDou differential ISTB for CUT0-CUT3... phase ISTB [cyc] Figure 8. Estimated BeiDou differential ISTB for CUTA-CUAA... phase ISTB [cyc] Figure 9. Estimated BeiDou differential ISTB for CUTT-CUTJ... the impact of ISTBs on BeiDou single- and dual-frequency instantaneous... BeiDou inter-satellite-type biases (ISTBs) and their impact on standalone BeiDou... differential ISTBs among the three BeiDou satellite types (GEO, IGSO and... used to correct mixed receiver BeiDou attitude determination. It was observed... in the early stage of BeiDou-enabled receiver developments. Furthermore, it...-Pacific region with the current BeiDou constellation. Acknowledgments This work is... conflict of interest. References 1. CSNO. BeiDou Navigation Satellite System Signal in... performance comparison between GPs and BeiDou-2/COMPASS: A perspective from Asia. J. Chin... resolution performance with GPS and BeiDou for LEO formation flying. Adv..., S. Initial assessment of the COMPASS/BeiDou-2 regional navigation satellite system. GPS... Asia: First Experience with the BeiDou-2 Regional Navigation System. IGS Workshop..., X.; Liu, J. Precise orbit determination of BeiDou Satellites with precise positioning. Sci..., D. An Analysis of Combined COMPASS/BeiDou-2 and GPS Single- and Multiple...; p. 8. 17. Nadarajah, N.; Teunissen, P.J.G. Instantaneous GPS/BeiDou/Galileo Attitude Determination: A Single-Frequencyr...



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... европейской СРНС Galileo и китайской системы BeiDou /Compass. Построены графики и обсуждены свойства...-сигнал, спутниковая радионавигационная система, Galileo, BeiDou /Compass. ENTIRE CBOC SIGNALS AND... third development stage of the BeiDou /Compass SRNSs. Plots are depicted..., satellite radio navigation system, Galileo, BeiDou/Compass. ВВЕДЕНИЕ Навигационные CBOC-сигналы... GPS и, как предполагается, в китайской СРНС Beidou/ Compass на третьей фазе её развертывания... полного CBOC-сигнала E1 OS; r τ M1 (t ) – МПК BOC-сигна ла с мод... (6,1); В табл.1 обозначено: CBOC (6,1,1/11,+) и CBOC τ M1  – длительность меандрового импульса BOC(6,1,1/11.../11. гетического спектра, обусловленные МПК rτ M1(t) и  rτM2 (t), в результирующем спектре полного CBOC2... =6,138 Два типа меандровых импульсов: τM1≈0,4887 τM 2≈0,08146 Два МПК: TM1...–C = 4 τC-A ≈0,391 Согласно (14) для МПК rτM1(t) и rτM2(t) можем записать (см. табл... типа τM =1/2fM, мкс меандровых импульсов: τM1≈0,4887 τM 2 ≈0,08146 Период МПК Два...–12(t) равны: (36) (37) где τ M1 и τ M2 – длительности меандровых импульсов BOC... с модуляцией типа BOC (1,1);  – (59) где τM1 – длительность меандрового импульса BOCсигнала с модуляцией... OS (а также в случае китайской системы BeiDou/Compass для полного CBOC-сигнала... спутниковой радионавигационной системы BeiDou/Compass.– Радиотехника. 2014. № 7. С. 65. 33. BeiDou Navigation Satellite... спутников навигационных систем GPS, ГЛОНАСС, BeiDou, QZSS, Galileo (в будущем) и всех SBAS... в России и КНР для ГЛОНАСС и китайской Beidou особенно актуальна. Генеральный директор ОАО... подбирают места для размещения станций BeiDou Китайская делегация также провела осмотр... коррекции сигнала китайской навигационной системы BeiDou, заявил глава Роскосмоса Олег Остапенко..., нужны ли в гаджетах навигационные чипы BeiDou, где уже ставятся чипы американской... с европейской eCALL, а так же с китайской Beidou, готовность автопроизводителей к внедрению системы «ЭРА... поколения (в частности, СРНС Galileo и Compass (BeiDou-2)). авиационной радионавигации, может быть также...



Дата загрузки: 2017-05-20
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... 16-18 July, 2013 The BeiDou Navigation Message Oliver Montenbruck DLR... provides an overview of the BeiDou navigation message contents and highlights... CONGO networks, the quality of BeiDou broadcast ephemerides is assessed through... consideration in the positioning. KEYWORDS: BeiDou, Broadcast Ephemeris, multi-GNSS positioning... of the Russsian GLONASS system, BeiDou is the third navigation satellite... GEO and IGSO satellites, the BeiDou system provides best coverage in... this area can benefit from BeiDou as either a supplement to legacy... geometry and coverage of the BeiDou constellation is fully symmetric with... quality of navigation information. 1 Table 1. BeiDou constellation status as of April... deployment and testing of the BeiDou system, a public interface control document... a full regional navigation service. All BeiDou satellites transmit signals on a total... previously enabled researchers to track BeiDou signals in all frequency bands... first provide a summary of the BeiDou navigation message contents and describe... al. 2013). 2 2. BEIDOU MESSAGE TYPES AND STRUCTURE The BeiDou system utilizes two.... Figure 1. Frame structure of the BeiDou D1 navigation message for MEO... message broadcast by the geostationary BeiDou satellites employs a ten times higher... ICD. Subframe 5, finally, contains the BeiDou almanac, ionosphere grid data for... the D2 navigation message for BeiDou GEO satellites. Each block represents... navigation accuracy for single-frequency BeiDou users in this region. The...,Ci) Periodic range corrections (Cr) BeiDou Bits Scale 24 2-33 22... and scaling factors for the BeiDou ephemeris parameters in the D1... al. 2012b). 3. BEIDOU BROADCAST NAVIGATION MODELS 3.1 Orbit Model BeiDou is the first... to communicate correction data in BeiDou, but are an integral part... has been defined for geostationary BeiDou satellites to cope with the...  0w (2) For use with geostationary BeiDou satellites, the model is modified... orbital inclination of the geostationary BeiDou satellites relative to the Earth... completeness, it is emphasized that BeiDou employs different values for the... parameters of BeiDou, GPS, and Galileo ephemeris models. Parameter GM ω BeiDou GPS... well aware, though, that the BeiDou TGD1 group delay parameter is... by Chinese authorities for the BeiDou extension of the Receiver INdependent... hand, inspection of the raw BeiDou navigation data frames shows that... Model For single-frequency users, BeiDou broadcasts a set of eight correction... night side. Coefficients for the BeiDou ionosphere model are determined from... Wu et al. (2013) the BeiDou model outperforms the Klobuchar model... PERFORMANCE ASSESSMENT 4.1 Ephemeris Age The BeiDou navigation message comprises an integer..., since uplink stations of the BeiDou ground segment are limited to... the satellite’s ground-position for BeiDou IGSO satellites 8 This is illustrated... the satellite’s ground-position for BeiDou MEO satellites. Due to a lack... As a first test of the BeiDou broadcast ephemeris accuracy, satellite laser... range error (SISRE) of the BeiDou broadcast ephemerides. Interestingly, the observed... based on broadcast orbits) for BeiDou satellites tracked by the ILRS... Products For a complementary quality assessment, BeiDou orbit and clock products have... a ionosphere-free linear combination of BeiDou observations in the B1/B2... 0.1-0.2 m level. 10 Figure 7. Differences between BeiDou MEO and IGSO broadcast orbits... and post-processed products for BeiDou MEO and IGSO satellites (March... to different realization of the BeiDou system time. As discussed in... positioning results using GPS and BeiDou observations. Results for a total of... signal combinations. In case of BeiDou, broadcast group delay parameters were... a somewhat lower positioning performance for BeiDou as compared to GPS. Best... the BeiDou satellites and employ them for real-time navigation. The BeiDou... the geostationary satellites of the BeiDou constellation a distinct navigation message type... of the standard navigation data. BeiDou thus 13 combines the services...-frequency B1 navigation service, the BeiDou system can already be used... must be taken, though, that BeiDou adopts a different concept for the... the GPS constellation average of 0.8 m, BeiDou users are also commonly affected... of 2.5-5 m have been obtained in BeiDou-only solutions, while GPS-only... combination. With the given performance, BeiDou clearly lends itself as a standalone... to a take full advantage of BeiDou in precise point positioning applications... the BeiDou navigation information. Satellite laser ranging observations of the BeiDou satellites.../s10291-008-0095-y CSNO (2012) BeiDou Navigation Satellite System Signal In... D, Todd Walter, Enge P (2009) Compass-M1 broadcast codes in E2, E5b... Precise Orbit Determination of the BeiDou Navigation Satellite System, Sensors 13... Asia: First Experience with the BeiDou-2 Regional Navigation System, IGS Workshop...) Initial Assessment of the COMPASS/BeiDou-2 Regional Navigation Satellite System, GPS... J (2012) Precise orbit determination of Beidou satellites with precise positioning, Science...



Дата загрузки: 2017-06-15
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... centre in Beijing via the Beidou-1 communication satellite. The paper also... Analysis Centre through the China Beidou No 1 navigation/satellite communication channel... monitoring system remotely controlled though Beidou-1 communication satellite 3.1 Components of the..., digital automatic landslide monitoring point, Beidou-1 navigation satellite communication system and... level monitoring point. (3) Beidou-1 navigation/ communication satellite system “Beidou-1 navigation communication satellite... and Beidou-1 user terminal. Figure 7 illustrates the concept of the Beidou-1 system and services. The space segment of Beidou-1 navigation... comprehensive information service structure of Beidou-1 navigation communication satellite system Fig... hazard monitoring & analysis center comprises a Beidou-1 communication user receiver, a database server... monitoring data analysis software. Through Beidou-1 communication client receiver, the center... landslide monitoring system, based on Beidou-1satellite communication, operates as follows... transmission and communication function of Beidou-1 satellite navigation system to directly... to the field system through Beidou-1 system as well. The system... the landslide monitoring sensor through Beidou-1 satellite communication link; while the... addition, with means of the Beidou-1 satellite communication system, remote automatic... Mapping Press, Beijing Ha B. (2004) Beidou Navigation and Position Satellites System... DD = λ DD AB [ N = ( N 0 ) 21 AB M1 31 DD AB " DD AB M1 ( N 0 ) 31 AB " ( N 0 ) AB (3) ] ] T T Where, Rn ...+B3) , i=1,2,3, the above equation becomes: m1 • δρ p ( f1 ) + m2 • δρ p ( f 2 ) + m3 • δρ p ( f 3 ) = 0 This means... Positioning Systems 294 we obtain: δϕ p ( f 1 ) • m1 / f 1 + δϕ p ( f 2 ) • m 2 / f 2 + δϕ p ( f 3 ) • m3 / f 3 = δϕ p ( f 1 ) • m + δϕ p ( f 2 ) • n + δϕ p ( f 3 ) • k necessary for the precision... ionospheric range error [unit=m] where m = m1 / f1,n = m2 / f2,k = m3 / f3...



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... for COMPASS/BeiDou-2 Ranging codes of first COMPASS/BeiDou-2 satellite (M1) derived from...“ PRNs in IGS(MGEX) work [5] BeiDou Navigation Satellite System Signal In... Office December 2011. http://www.beidou.gov.cn/attach/2011/12... > Olsztyn > 2012/07/25 COMPASS/BeiDou-2 Satellites and PRNs (May 2012... C10 2011-073A 37948 IGSO M1 C30 2007-011A 31115 MEO... mode for GEO satellites COMPASS-M1 SLR-only orbit determination Bad... COMPASS/BeiDou-2 Almost no spacecraft information available All satellites of BeiDou-2 system...] [26] Han C, Yang Y, Cai Z (2011) BeiDou Navigation Satellite System and its... und Mi Hong; Analysis of Beidou Navigation Satellites In-orbit State.../25 COMPASS/BeiDou-2 Satellites BeiDou-2 GEO (DFH-3A) DFH-3 Bus BeiDou-2 MEO/IGSO... > Olsztyn > 2012/07/25 COMPASS/BeiDou-2 Spacecraft Body Frame +x +y MEO/IGSO... > 2012/07/25 Proposed COMPASS/BeiDou-2 Antenna Types and Satellite Codes... BEIDOU-2G C01 C003 2010-001A BEIDOU-2G C02 C002 2009-018A BEIDOU-2G C03 C004 2010-024A BEIDOU-2G C04 C006 2010-057A BEIDOU-2G C05 C011 2012-008A BEIDOU-2I C06 C005 2010-036A BEIDOU-2I C07 C007 2010-068A BEIDOU-2I C08 C008 2011-013A BEIDOU-2I C09 C009 2011-038A BEIDOU-2I C10 C010 2011-073A BEIDOU-2M C11 C012 2012-018A BEIDOU-2M C12 C013 2012-018B BEIDOU... > Olsztyn > 2012/07/25 COMPASS/BeiDou-2 GNSS Antenna Position Drawings/images... to CoG (COMPASS s/c axes) Spacecraft X [m] Y [m] Z [m] BEIDOU-2G +0.8 ± 0.4 +0.0 ± 0.1 +1.1 ± 0.1 BEIDOU-2I/M +0.5 ± 0.2 +0.0 ± 0.1 +1.1 ± 0.1 Presently no official.../BeiDou-2 Antenna Offsets Recommendations (Antenna WG) Add new „antenna“ code BEIDOU-2G, BEIDOU-2M, BEIDOU-2I to rcvr_ant.tab Provide antenna offsets of COMPASS/BeiDou...