Спутник навигационных систем. Beidou 3. [Редактировать]

Дополнительные наименования

#НаименованияПоиск в новостяхПоиск в документах
1Compass G1НайтиНайти
236287НайтиНайти

Дополнительная классификация

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

Характеристики орбиты

#ХарактеристикаЗначение
1Наклонение, град1.6
2Апогей, км35805.8
3Перигей, км35780.4
4Период, минут1436.1
5Длинный диаметр эллипса, км42164

Пусковые характеристики

#ХарактеристикаЗначение
1Код NSSDC2010-001A

Информация об удачном запуске

#ХарактеристикаЗначение
1Дата пуска2010-01-16 at 16:12:00 UTC
2Полезная нагрузка 1xBeidou 3
3Ракета-носитель 1xВеликий поход 3C

Найдено 1000 документов по запросу «Beidou 3». [Перейти к поиску]


Дата загрузки: 2018-04-17
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0.09/5
... System (QZSS) of Japan and BeiDou of China, broadcast or plan... the Chinese Committee on the BeiDou Navigation Satellite System. Cooperation is...; Galileo E1 and E5 signals; BeiDou B1 and B2 signals within... have also been adopted by BeiDou and QZSS, further aiding interoperability... Satellite System (IRNSS), QZSS, and BeiDou. Galileo and GLONASS have limited... of a common spectrum. Now that BeiDou and Galileo are well on... NAVIGATION SATELLITE SYSTEMS China: the BeiDou Navigation Satellite System System description... navigation satellite systems worldwide, the BeiDou Navigation Satellite System is being... by China. In connection with BeiDou, China upholds the principles of... adheres to the concept that BeiDou belongs to China, and also... between GNSS. Openness means that BeiDou will provide open services for... applications worldwide. Independence means that BeiDou will be developed and operated... China independently. Compatibility means that BeiDou is devoted to pursuing compatibility... users. Gradual deployment means that BeiDou is deployed step by step... economic development. Space segment The BeiDou baseline constellation will consist of... open services to users worldwide. BeiDou has been in full service.... As of that date, the BeiDou constellation had 14 operational satellites... the first edition of the BeiDou Navigation Satellite System open service... constellation of BeiDou Ground segment The ground segment of the BeiDou system... operation and control centre of BeiDou. Its main tasks include the... The current basic parameters of BeiDou civil signals are shown in... Table 3.  Current basic parameters of BeiDou civil signals Carrier frequency (MHz...) QPSK Open Component The planned BeiDou frequency bands include: B1: 1,559... The planned basic parameters of BeiDou civil signals are shown in... 4.  The planned basic parameters of BeiDou civil signals Component B1-CD... standards versus actual performance The BeiDou open-service volume is defined... coverage of the BeiDou satellites where both the BeiDou open-service horizontal...). At the current stage, the BeiDou regional service capability has been... XIII.  The current BeiDou open-service volume The BeiDou standards for open... shown in table 5. Table 5.  The BeiDou standards for open-service position... East and 160 degrees East, BeiDou could provide open services with... East and 180 degrees East, BeiDou could provide open services with... The BeiDou system was constructed in three steps. Step 1: the BeiDou Navigation... of BeiDou Navigation Satellite Demonstration System. In 2000, the first two BeiDou... established. In 2003, the third BeiDou experimental navigation satellite was launched... 2: the regional version of the BeiDou Navigation Satellite System In 2004... the BeiDou Navigation Satellite System. By the end of 2012, the BeiDou... 3: the global version of the BeiDou Navigation Satellite System From 2014... BeiDou service performance will be enhanced and expanded worldwide. Approximately 40 BeiDou... timing services to users. The BeiDou system will achieve full global... provided and provision policies Since BeiDou was officially brought into service... with the construction of the BeiDou system and the development of... key technical areas, such as BeiDou core chips and modules. The... and economic benefits. In particular, BeiDou played an important role in... the Shanghai World Expo. The BeiDou system has brought the navigation... and performance specifications of the BeiDou Navigation Satellite Demonstration System were... functions and performance parameters of BeiDou in the full operational capability... At the global level, the BeiDou system can provide two types... adheres to the concept that BeiDou belongs to China, and also... systems throughout the world. The BeiDou system will achieve frequency compatibility... multilateral coordination. So far, the BeiDou system has facilitated meetings to... bilateral and multilateral venues The BeiDou system will achieve interoperability with..., including ICG. So far, the BeiDou system has facilitated coordination meetings... and application management of the BeiDou system. The China Satellite Navigation... promotion and industrialization of the BeiDou system, as well as the... of the World Radiocommunication Conferences BeiDou international frequency coordination activities have... International Telecommunication Union, China started BeiDou frequency coordination activities. Satellite network... submitted in accordance with the BeiDou construction plan and progress. China...), for open services, and the BeiDou/GNSS Application Demonstration and Experience... area to benefit from BeiDou’s creation sooner, the BeiDou team visited a great... events entitled “BeiDou’s tour to the Asia-Pacific region” and “BeiDou’s tour... with QZSS, MSAS and Compass/BeiDou. IRNSS is pursuing coordination in... with GPS, Galileo and Compass/BeiDou. GAGAN is completing the coordination...



Дата загрузки: 2017-12-26
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0.04/5
... L2, Galileo E1 and E5a/b, BeiDou B1 and B2, and QZSS... Galileo E1/E2 and E5 BeiDou compatible Support of different types... Signal for GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS Connector : Type N female... can be GPS, GLONASS, Galileo, BeiDou, QZSS, IRNSS GLONASS freq ch... GL: Glonass GA : Galileo BD: BeiDou IR: IRNSS QZ: QZSS 2. PRN...: Exx For GLONASS: Rxx For BeiDou: C xx For QZSS: Jxx For... interference signal iUC , for unmodulated BeiDou interference signal iUJ, for unmodulated... Galileo interference iSc , for sweeping BeiDou interference iSj , for sweeping QZSS... Galileo interference iNc , for noise BeiDou interference iNj , for noise QZSS... 33 consecutive days. For Galileo, BeiDou, and IRNSS, the GSG unit... with Galileo, INRSS and/or BeiDou simulation. The download functionality does... a ‘b’, GSG assumes the file contains Beidou satellite almanac data. q*.alm : If... or a Galileo carrier BeiDou: B1,B2 or BeiDou B1,B2 carrier signal... For GPS, SBAS, Galileo, GLONASS, BeiDou, IRNSS and QZSS signals, the...-5/6 Series Rev. 25 3.5  "Select" Menu BEIDOU China; regional system (Asia); planned... systems, i.e. GPS, Glonass, Galileo, and BeiDou, transmit numerous signals across several... L2 Galileo E1 E5 E6 BeiDou B1 B2 B3 L5 For... Galileo: E1 E5A E5B For BeiDou: B1 B2 For QZSS: C/A 72... offsets Constellation GPS GLONASS Galileo Beidou QZSS 3.6.1.1 Signal Power offset, dB... can support: GPS, GLONASS, Galileo, BeiDou, SBAS. If equipped with the... supported are: GPS, Glonass, Galileo, BeiDou, and QZSS, and their corresponding... for GPS, GLONASS, Galileo and Beidou. When the Auto keyword is... supported include GPS, GLONASS, Galileo, BeiDou and mixed. The RINEX file...: [-7,6] Galileo: [1, 36] SBAS: [120, 158] BeiDou: [1,37] QZSS: [1,4] IRNSS: [1:7] Specifies the... Options for GSG-5: GLONASS GALILEO BEIDOU QZSS Upgrade to 4-channel unit... and 4 simultaneous frequencies GLONASS, GALILEO, BEIDOU, QZSS, IRNSS Add New GPS... L2) Add Galileo E5a/b and BeiDou B2 5.14.3 List of Available... testing. OPT-BDS : enables all BeiDou signals supported. OPT-ECL: enabling.../b, BeiDou B2, IRNSS signals. OPT-L6: reserved for Galileo E6 and BeiDou... E5a/b, BeiDou B2 L6 – L6 Frequency band, required for BeiDou B3 / Galileo... Generation BDS – BeiDou, enables B1, is required for BeiDou B2 RP – Record... ‘E’ (or ‘e’) for Galileo 'C' (or 'c') for BeiDou ‘J’ (or ‘j’) for QZSS 'I' (or 'i') for.... For an unmodulated GPS, Galileo, BeiDou, QZSS, or IRNSS signal, the..., for example E01 Cxx for BeiDou, for example C11 Jxx for... Galileo signal UC for unmodulated BeiDou UJ for unmodulated QZSS UI... satellite system GPS/GLONASS/GALILEO, BeiDou/QZSS/IRNSS and the modulation... for Galileo – BDSB1, BDSB2 for BeiDou – QZSSL1CA, QZSSL1SAIF, QZSSL2C, QZSSL5 for...: L1CA, L1P, L2P; QZSS: L1CA; Beidou: B1, B2. Navigation message decoding..., for example E01 C xx for BeiDou, for example C11 Jxx for... Galileo signal UC for unmodulated BeiDou signal UJ for unmodulated QZSS... frequency bands for GLONASS, Galileo, BeiDou, QZSS and IRNSS. Command Syntax... frequency bands for GLONASS, Galileo, BeiDou, QZSS and IRNSS. Command Syntax...:SIGNALtype? Parameter satID – GPS, Glonass, BeiDou, QZSS, IRNSS and SBAS are... execution. Parameter satID – GPS, Glonass, BeiDou, QZSS and SBAS are supported... Galileo : E1, E5a, E5b For BeiDou: B1, B2, For QZSS : L1CA... Galileo E5a: page id For BeiDou: subframe id For QZSS L1CA... Galileo E5a: 0 (not relevant) For BeiDou: page id For QZSS L1CA... various timescales including GPS, UTC, BeiDou, QZSS, Galileo, GLONASS, EGNOS Network... timescales includ ing GPS, UTC, BeiDou, Galileo, GLONASS, EGNOS Network Time.... Parameters satID – GPS, Glonass, Galileo, BeiDou, QZSS, IRNSS and SBAS are... Galileo: E1, E5a, E5b For Beidou: BDSB1 (or B1), BDSB2 (or.... Parameters satID – GPS, Glonass, Galileo, BeiDou, QZSS, IRNSS and SBAS are... Galileo: E1, E5a, E5b For BeiDou: B1, B2, For QZSS: L1CA... satellites satID – GPS, Glonass, Galileo, BeiDou, QZSS, IRNSS and SBAS are...



Дата загрузки: 2018-05-05
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0.05/5
... спутников ГНСС (ГЛОНАСС, GPS, GALILEO, BEIDOU) происходит по орбитам, близким к круговым... должна составлять 1 м [95], для системы BEIDOU – 3 м [118]. В Приложении Б приведены, выполненные автором... навигационным данным в системах GPS, GALILEO и Beidou применяется аналитический метод расчета координат... вычисления положений спутников GPS, GALILEO и Beidou входными параметрами являются: – A0, A1..., м; – t oe – опорное время системы GPS, Beidou или GALILEO, с; – Cic – поправка в косинусоидальную... BDT, если спутниковая навигационная система Beidou dt sat  A0  A1  (t  toe... время системы GPS, GALILEO или Beidou, trel – поправка за релятивистский эффект... временем системы GPS, GALILEO или Beidou и временем излучения сигнала tk  t  toe... навигационных сообщений ГЛОНАСС, GPS, GALILEO, BEIDOU, а также на основе точных эфемерид... Document BEIDOU. – 82 p. – Англ. – [Electronic resource]. – Режим доступа: http://www.beidou.gov.... – 390 p. – Англ. 118 Montenbruck, O. The BeiDou Navigation Message [Electronic resource] / O. Montenbruck...



Дата загрузки: 2017-11-08
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... : (1) s G 𝑠 𝑠 Φ𝑟𝑗 = 𝜌𝑟𝑠 + 𝑑𝑡𝑟 − 𝑑𝑡 𝑠 + αs𝑟𝑗 + 𝜆𝑗𝐺 (𝛿𝑟𝑗 + 𝜑𝑟𝑗 − 𝛿𝑗𝑠 − 𝜑𝑗𝑠 + 𝑁𝑟𝑗 ) +∈𝑟𝑗 s 𝑃𝑟𝑗 = 𝜌𝑟𝑠 BeiDou: q 𝑠 + 𝑑𝑡𝑟 − 𝑑𝑡 + 𝑞 𝑞 αs𝑟𝑗 q + G 𝑑𝑟𝑗 − 𝑑𝑗𝑠 + (2) 𝑠 𝑒𝑟𝑗 𝑞 𝑞 𝑞 𝑞 𝐵 Φ𝑟𝑗 = 𝜌𝑟 + 𝑑𝑡𝑟 − 𝑑𝑡 + α𝑟𝑗 + 𝜆𝑗𝐵 �𝛿𝑟𝑗 + 𝜑𝑟𝑗 − 𝛿𝑗 − 𝜑𝑗 + 𝑁𝑟𝑗 � − 𝐺𝐵𝑇𝑂 +∈𝑟𝑗 𝑞 𝑃𝑟𝑗 = 𝑞 𝜌𝑟 𝑞 + 𝑑𝑡𝑟 − 𝑑𝑡 + 𝑞 𝛼𝑟𝑗 + 𝐵 𝑑𝑟𝑗 − 𝑞 𝑑𝑗 − 𝐺𝐵𝑇𝑂 + 𝑞 𝑒𝑟𝑗 ここで、 r :受信機を表す記号 𝑠、𝑞 :衛星を表す記号 𝑑𝑡𝑟 :受信機時計誤差 [m] j :周波数帯を表す記号 𝑞 𝜌𝑟𝑠 、𝜌𝑟 :受信機 r と衛星 s、q 間の擬似距離 [m] 𝑑𝑡 𝑠 :衛星時計誤差 [m] 25 (3) (4) :大気遅延(対流圏遅延、電離層遅延) [m] αs𝑟𝑗 :擬似距離のマルチパス+受信機熱雑音 [m] 𝑒 :搬送波位相のマルチパス+受信機熱雑音 [m] 𝜖 𝜆𝑗 :波長 :衛星系 G(GPS)の衛星の搬送波位相の受信機ハードウェア遅延 [cycle] G 𝛿𝑟𝑗 G 𝑑𝑟𝑗 :衛星系 G(GPS)の衛星の擬似距離の受信機ハードウェア遅延 [m] :受信機の初期位相 [cycle] 𝜑𝑟𝑗 𝛿𝑗𝑠 :衛星系 G の衛星 s の搬送波位相の衛星ハードウェア遅延 [cycle] 𝑠 𝑁𝑟𝑗 𝐵 𝛿𝑟𝑗 𝐵 𝑑𝑟𝑗 𝑞 𝛿𝑗 𝑞 𝑑𝑗 :位相アンビギュイティ [cycle] :衛星系 G の衛星 𝑑𝑗𝑠 𝑞 𝜑𝑗𝑠 、𝜑𝑗 :衛星の初期位相 s の擬似距離の衛星ハードウェア遅延 [m] [cycle] :衛星系 B(BeiDou)の衛星の搬送波位相の受信機ハードウェア遅延 [cycle] :衛星系 B(BeiDou)の衛星の擬似距離の受信機ハードウェア遅延 [m] :衛星系 B の衛星 q の搬送波位相の衛星ハードウェア遅延 [cycle] :衛星系 B の衛星 q の擬似距離の衛星ハードウェア遅延 [m] 𝐺𝐵𝑇𝑂 :BeiDou 時刻と GPS 時刻との間のオフセット [m] 異なる衛星系間の搬送波位相及び擬似距離の受信機ハードウェア遅延量は異なるため、 二重差ではキャンセルできず、それぞれ搬送波位相と擬似距離の受信機ハードウェアバ イアスとして観測値に残される。異なる衛星系 G と衛星系 B との間の搬送波位相 ISB 𝐺𝐵 𝐺𝐵 )と擬似距離 ISB(𝑑𝑟𝑗 )はそれぞれ次のように定義される。 (𝛿𝑟𝑗 (5) 𝐺𝐵 𝐵 𝐺 𝛿𝑟𝑗 = 𝛿𝑟𝑗 − 𝛿𝑟𝑗 𝐺𝐵 𝑑𝑟𝑗 = 𝐵 𝑑𝑟𝑗 − (6) 𝐺 𝑑𝑟𝑗 26 (1)受信機間一重差観測式 受信機 1 と受信機 2 の間で同じ衛星から得られる搬送波位相観測値の差分、擬似距離 観測値の差分を取ることより、衛星の時計誤差、初期位相、ハードウェア遅延がキャン セルされる。BeiDou の場合、時刻系オフセット GBTO もキャンセルされる。受信機間 一重差観測式は次のように定義される。 GPS...-Information」 2.2.6. BeiDou 衛星情報 BeiDou については、現在の衛星状態を日本語または英語で公開しているウェブサイ トがなかったため、IGS が提供するウェブサイトから情報を入手した。 「http://www.igs.org/mgex/constellation#BeiDou」 表 2-18 BeiDou 衛星情報 軌道 タイプ Common.... 2012) 2.2.7. GPS と BeiDou GEO の混合解析による BeiDou GEO の影響調査 BeiDou の GEO 衛星は静止衛星であり、衛星の仰角、方位角が一定である。マルチパ ス誤差は一般的に仰角により変化するが、静止衛星では変化が小さくなるため、マルチ パス誤差が大きい場合、測位に悪影響を及ぼすことが懸念される。そこで、GPS と BeiDou の GEO 衛星のみを使用し、GPS と BeiDou で位相差を取らない混合解析で基 線解析を行い、解析結果の残差の確認を行った。 0m 基線観測条件の 8 月 9 日 24... から、表 2-20 と報告と同様に、BeiDou GEO とそれ以外との衛星との間に L1 の みにおいて、0.5 サイクルに相当する約 10cm の搬送波位相の差が確認された。 42 ●フィックス解、●フロート解 擬似距離残差 搬送波位相残差 BeiDou GEO GPS, BeiDou MEO, BeiDou IGSO SNR と仰角 図 2-31 GPS と BeiDou の混合解析結果 L1 残差、SNR... モデル 対流圏補正 Saastamoinen モデル 除去衛星 BeiDou C02 解析結果を衛星系の組み合わせごとに表 2-65 から表 2-68 に示す。また、フィックス 解の割合のプロット図及び座標の精度のプロット図を図 2-54 から図 2-61 に示す。 なお、表の補正の分類は下記のとおりである。  BeiDou のみ BeiDou のみの解析  混合解析 BeiDou と他の衛星系で位相差を取らない混合解析  統合解析 全補正なし BeiDou と他の衛星系で位相差を取る統合解析 擬似距離 ISB、搬送波位相 ISB とも補正なし  統合解析 擬似距離 ISB 補正なし BeiDou と他の衛星系で位相差を取る統合解析 擬似距離 ISB 補正なし、搬送波位相 ISB 補正あり  統合解析 搬送波位相 ISB 補正なし BeiDou と他の衛星系で位相差を取る統合解析 擬似距離 ISB 補正あり、搬送波位相 ISB 補正なし  統合解析 全補正あり BeiDou と他の衛星系で位相差を取る統合解析 擬似距離 ISB、搬送波位相 ISB とも補正あり BeiDou のみの解析では、フィックス率が 100%、 、BeiDou と他の衛星系の組み合わせ による混合解析でも 100%のフィックス率であった。座標の精度については BeiDou の みと比較し混合解析の方が向上した。 BeiDou と他の衛星系の組み合わせによる統合解析では、BeiDou と Galileo の組み合 わせ以外、擬似距離 ISB 補正と搬送波位相 ISB 補正の両方を補正することで 99.9%以上 のフィックス解が得られた。BeiDou... の補正値が小さいためと推測される。しかし、擬 似距離 ISB のみの補正では座標の精度が補正ありに比較し低下した。 BeiDou と GPS、GLONASS、Galileo の組み合わせでは、BeiDou のみと比較し、統 合解析においても座標の精度向上がみられた。 BeiDou と QZSS の組み合わせでは QZSS が 1 機のため座標の精度向上はわずかであった。 BeiDou と他の衛星系の組み合わせによる統合解析において、擬似距離 ISB、搬送波 位相 ISB を補正することでフィックス解が得られることが確認できた。また、BeiDou 単体より混合解析同様に座標の精度が向上することが確認できた。 なお、アンビギュイティ決定モードを「Continuous」にした場合、L1 一周波解析では擬 似距離 ISB、搬送波位相 ISB 両方を補正することで 100%近いフィックス解が得られたが、 二周波解析では BeiDou と GPS、BeiDou と GLONASS の組み合わせで 20%以下となる現 象がみられた。BeiDou と Galileo の組み合わせでは共通の信号が L1 一周波のためこの現象 はみられず、BeiDou と QZSS の組み合わせでは共通の信号が二周波であるが、GPS や GLONASS のようなフィックス率の低下はみられなかった。この原因についてはまだ不明で あり、原因解明にはより詳細な調査が必要である。 表 2-65 ISB 補正基線解析結果(BeiDou.... BeiDou と他の衛星系間で位相差を取ることを可能にする方法 2.2 の「BeiDou の系統誤差の補正方法」のこれまでの調査結果を踏まえ、BeiDou と 他の衛星系間で位相差を取ることを可能にする方法について検討した。 BeiDou と他の衛星系間の統合解析では、擬似距離 ISB、搬送波位相 ISB を補正する ことでキネマティック基線解析においてフィックス解を得ることができた。しかし、受 信機機種にもよるが表 2-74 の通り搬送波位相 ISB が受信機再起動によって変化するた め、事前に推定した補正値をテーブルとして与えて補正することができない。この解決 策としては、BeiDou と他の衛星系の組み合わせでは衛星系間で位相差を取らない混合 解析とすることで、擬似距離 ISB、搬送波位相 ISB とも発生しないため、受信機再起動 で変化する搬送波位相 ISB を考慮する必要がなくなる。 なお、平成 25 年度の業務での調査結果では GLONASS と他の衛星系間で受信機再起 動により搬送波位相 ISB が変化し、本業務では BeiDou...



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... – 1998-024A – decommissioned (14 years) Beidou-1B – 2000-082A – decommissioned GeoLite...-M) – 2002-023A -- decommissioned (11 years) Beidou-3 – 2003-021A – decommissioned Compass-G2... MetOp B – 2012-049A Beidou 2-14 – 2012-050A Beidou 2-15 – 2012-050B Astra...-056B Intelsat 23 – 2012-057A Beidou 2-16 – 2012-059A Luch 5B... – 2012-006G SES-4 – 2012-007A Beidou – 2012-008A MUOS-1 – 2012-009A...-6 (USA 227) – 2011-011A Compass G-8 (Beidou IGSO-3) – 2011-013A SB-WASS... Intelsat 17 – 2010-065B Compass Beidou IGSO 2 – 2010-068A KA-SAT...-3B – 2010-056B Compass-G4 (Beidou G4) – 2010-057A Satellites Removed... some satellite data Satellites Added Beidou 3 – 2010-001A Raduga 1M – 2010...-1 – 2006-015A CAPE-1 – 2007-012P Beidou-2 [Compass G2] – 2009-018A Satellites...] – 2005-011A Meridian-1 – 2006-061A Beidou-1D – 2007-003A Orbcomm QL4... Satcom 2 [USA 204]) – 2009-017A Beidou 2 (Compass G2) – 2009-018A RISAT...-45 (Gorizont-33) – 2000-029A Beidou-1A – 2000-069A Monitor-E (2005...



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WIRELESS TECHNOLOGIES GPS/GALILEO/GLONASS/BEIDOU IRIDIUM GSM/GPRS/UMTS/CDMA... car accidents. GPS/GALILEO/GLONASS/BEIDOU GSM/GPRS/UMTS/CDMA LTE... RFID 2 GNSS: GPS, GALILEO, GLONASS, BEIDOU, QZSS u-bloxM8, u-blox8 - the latest... vehicles. Modules support GPS, Glonass, BeiDou (Compass), QZSS, and Galileo* High... (MGA) - using GPS, Galileo, Glonass, BeiDou and QZSS data from the... includes also Assisted Glonass, Galileo, BeiDou and QZSS data, significantly improving... low as 1 second 7 GPS/GLONASS/BEIDOU/QZSS/GALILEO MODULES Development and... GNSS parallel mode Glonass, QZSS, BeiDou GPS, Galileo* Lowest Power DC... Size lxwxh [mm] GPS/Glonass/BeiDou/QZSS/Galileo* modules suggested for...



Дата загрузки: 2017-05-20
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... 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... 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..., 104, 139 Standard Positioning Service Beidou, 35 Glonass, 26 GPS, 19...



Дата загрузки: 2017-05-21
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Augmenting GPS RTK with Regional BeiDou in North America J. Dou, K. O’Keefe... GPS/BeiDou RTK. GPS/BeiDou system even with only two available BeiDou satellites... system which is called the BeiDou Navigation Satellite System. The Interface... of the first phase of BeiDou global navigation satellite system consisting... satellites has been completed. The BeiDou regional navigation satellite system is... the first phase of the BeiDou global navigation satellite system. A considerable... evaluate the performance of the BeiDou system. However, the focus has... the regional BeiDou system globally. The BeiDou Navigation Satellite System (BeiDou system) Signal... and deployment of the initial BeiDou regional navigation satellite system consisting... evaluate the performance of the BeiDou system. However, the focus has... the performance of the regional BeiDou system globally. The purpose of... and accuracy, then demonstrating GPS/BeiDou RTK with real data. Real... GPS and the combined GPS/BeiDou system. These preliminary results indicate... capability (i.e., centimeter-level) of the BeiDou system has not received as... effectively impossible using the standalone BeiDou system anywhere outside the Asia... number of visible BeiDou satellites. According to current BeiDou ephemerides, during limited... Pacific region, where typically ten BeiDou satellites are visible at any... Positioning System (GPS) and the BeiDou system could be attempted in... Page 1/9 In this paper, the BeiDou regional system is introduced briefly... performance of the combined GPS/BeiDou system for high precision applications..., 5 IGSO and 5 GEO satellites. THE BEIDOU SYSTEM In a quest for independence... called the BeiDou Navigation Satellite System for more than a decade. BeiDou is... the BeiDou system. The first generation, called BeiDou-I, was a demonstration system. BeiDou-I was... BeiDouI system with regional coverage, BeiDou-II (also known as Compass... precise and reliable use. The BeiDou Signal-In-Space Interface Control... acceptance of BeiDou into GNSS. In contrast to other GNSSs, BeiDou-II... Satellite Figure 1 BeiDou-II GEO and IGSO The BeiDou system uses the... al. 2013) BeiDou signals are based on CDMA. All BeiDou satellites transmit... Page 2/9 Table 1 Frequency bands of BeiDou satellite Band Freq. (MHz) Comment... E6 Similar to other GNSSs, BeiDou provides the service of navigation... marine and field applications. Adding BeiDou to the current GNSS systems.... BEIDOU RTK OVERVIEW Tremendous research has been conducted with the BeiDou system.... phase positioning with BeiDou alone and GPS/BeiDou was compared by J. Li... orbit determination of BeiDou-II and PPP with BeiDou-II and analysis of combined GPS and BeiDou RTK... a hardware receiver that can perform BeiDou RTK positioning. Some companies outside... U-blox have receivers can track BeiDou signals and provide positioning results... products that support BeiDou RTK. RTK METHODOLOGY GPS and BeiDou use code... analysis of BeiDou-II measurements in the world = using ∆φbeidou + ∆N beidou + ε φ λB1 real... within 5-10cm. Later, single- epoch BeiDou carrier λ is the carrier wavelength... the receiver clock offset with BeiDou, SYSTEM DESIGN The proposed RTK... differencing. The need for a separate BeiDou clock offset could be removed..., BeiDou B1 of base station, GPS L1 of rover and BeiDou B1... cycles • BeiDou Code standard deviation: 0.5m • BeiDou Doppler standard deviation: 0.1Hz • BeiDou Phase..., static, short baseline) GPS and BeiDou intermediate frequency samples were acquired... number of GPS satellites and BeiDou satellites through time span will... and BeiDou satellites during the 3 minute test. The GPS plus BeiDou combined... otherwise stated. There are 1 or 2 BeiDou satellites available during the three... there are two BeiDou satellites available. When only one BeiDou measurement is available, it is used only estimate the BeiDou... Figures 7 and 8. The magnitude of BeiDou code residuals is similar to.... However, the phase residuals of BeiDou are obviously larger than the... GPS residuals are better than BeiDou, especially for the phase measurements... Page 7/9 SD-Rx BeiDou ambiguities 9812 GPS GPS+Beidou 9810 PRN 2 9808... ambiguities In this contribution, a GPS/BeiDou RTK methodology is presented and... test is conducted where two BeiDou satellites are briefly available. The... indicate the addition of two BeiDou satellites improves the availability and... method in more scenarios where BeiDou satellites are available in North...[cycles] 7676.5 REFERENCES GPS GPS+Beidou 7676 7675.5 Li, J, Y. Yang, J. Xu...-Epoch Dual-Frequency RTK by BeiDou Navigation Satellite System, China Satellite...) Initial assessment of the COMPASS/BeiDou-2 regional navigation satellite system. GPS... Asia: First experience with the BeiDou-2 Regional Navigation System. IGS Workshop...) Quality Analysis of a Combined COMPASS /BeiDou-2 and GPS RTK Positioning Model... (2012b) Precise orbit determination of Beidou Satellites with precise positioning, in..., J. Tang (2013) Basic Performance of BeiDou Regional System, in Proceedings of...



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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... of the respective values in BeiDou, GPS, and Galileo is provided... 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... 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...



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... СПУТНИКОВЫХ РАДИОНАВИГАЦИОННЫХ СИСТЕМ ГЛОНАСС, GPS И BEIDOU IGSO ...................................................................................................................................... 27 2.1 Общие закономерности орбитальной... и орбитальной эволюции неуправляемых объектов системы BEIDOU IGSO ................................................................... 37 2.2.3 Особенности орбитальной эволюции... спутниковых радионавигационных систем ГЛОНАСС, GPS, BEIDOU IGSO и рассмотрена проблема утилизации объектов... отработавших объектов СРНС ГЛОНАСС, GPS и BEIDOU IGSO, показано, что влияние вековых... и BEIDOU IGSO (inclination geostationary orbits), то есть для навигационной системы BEIDOU рассмотрена... СПУТНИКОВЫХ РАДИОНАВИГАЦИОННЫХ СИСТЕМ ГЛОНАСС, GPS И BEIDOU IGSO 2.1 Общие закономерности орбитальной эволюции... трех навигационных систем ГЛОНАСС, GPS и BEIDOU IGSO. 2.1.1.Зависимость возрастания эксцентриситета от....4974 M 0 , град 99.7009 0.0000 BEIDOU IGSO-1 86178.60 0.00280 54....2417 191.4996 202.3179 BEIDOU IGSO-2 86175.60 0.00208 54....9232 175.3679 79.2272 BEIDOU IGSO-3 86169.00 0.00212 55... 92.6995 191.2421 0.7374 BEIDOU IGSO-4 86177.40 0.00215 55....3262 173.4844 113.6056 BEIDOU IGSO-5 86154.00 0.00182 55... объектов с орбитами типа ГЛОНАСС, GPS и BEIDOU IGSO на столетнем интервале времени..., 2008). Геосинхронные спутники навигационной системы BEIDOU IGSO (рисунок 2.1б) находятся по... орбит спутников систем ГЛОНАСС, GPS и BEIDOU IGSO, но также наклонения орбит... объектов системы BEIDOU IGSO Орбитальные параметры объектов китайской системы BEIDOU IGSO существенно отличаются от параметров систем ГЛОНАСС и GPS. Спутники BEIDOU... для всех спутников навигационной системы BEIDOU IGSO, расположенных на геосинхронных орбитах.... Результаты данного моделирования для объектов BEIDOU IGSO показаны на графиках, приведенных... Таблица 2.3 — Резонансные периоды спутников системы BEIDOU IGSO Спутник T, с IGSO-1 87520 IGSO... Следует отметить, что у всех спутников BEIDOU IGSO, кроме IGSO-3, резонансные периоды... интервале численного моделирования. BEIDOU IGSO-1 BEIDOU IGSO-2 BEIDOU IGSO-3 BEIDOU IGSO-4 BEIDOU IGSO-5 Рисунок 2.9 — Определение периодов орбитального резонанса для спутников навигационной системы BEIDOU... орбитального резонанса и периода обращения спутника BEIDOU IGSO-3 на интервале времени 500... резонанса BEIDOU IGSO-3 Перейдем к анализу структуры вековых резонансов неуправляемых объектов системы BEIDOU... BEIDOU IGSO № 10 11 12 13 14 25 27 29 BEIDOU IGSO-1 BEIDOU IGSO-2 BEIDOU IGSO-3 BEIDOU IGSO-4 BEIDOU IGSO-5 Мин. Макс... На рисунке 2.11 для объекта BEIDOU IGSO-1 показаны изменения во времени... им критических аргументов (б) для объекта BEIDOU IGSO-1 41 аргументы, кроме двух... параметров MEGNO и значительной хаотизации движения. BEIDOU IGSO-1 Рисунок 2.12 — Эволюция наклонения... для объектов для спутника BEIDOU IGSO-1 Спутники BEIDOU IGSO-2 и -5 (таблица 2.4) имеют одинаковый... объектов навигационной системы BEIDOU IGSO-2 (и -5) 43 То, что объекты BEIDOU IGSO-2, -5 обладают... рисунке 2.13 данные для BEIDOU IGSO-2, а данные для BEIDOU IGSO-5 опускаем. Приведенные... 2.14). Из всех объектов системы BEIDOU IGSO эти объекты имеют наименьшие... после 100 летнего интервала эволюции. BEIDOU IGSO-2 BEIDOU IGSO-5 Рисунок 2.14 — Эволюция... MEGNO для объектов для спутников BEIDOU IGSO-2 и -5 44 а) б) Рисунок 2.15 — Эволюция... (б) для объекта навигационной системы BEIDOU IGSO-3 45 Cпутник BEIDOU IGSO-3 имеет такой же набор острых вековых резонансов что и BEIDOU... через орбитальный резонанс (рисунок 2.10). BEIDOU IGSO-3 Рисунок 2.16 — Эволюция наклонения... MEGNO для объектов для спутника BEIDOU IGSO-3 В результате всех перечисленных особенностей... весьма быстро (рисунок 2.16). У объекта BEIDOU IGSO-4 в процессе долговременной орбитальной эволюции... аргументов (б) для объекта навигационной системы BEIDOU IGSO-4 47 Критические аргументы, связанные... говорит о хаотичности движения данного объекта. BEIDOU IGSO-4 Рисунок 2.18 — Эволюция наклонения... MEGNO для объектов для спутника BEIDOU IGSO-4 2.2.3 Особенности орбитальной эволюции объектов... радионавигационных систем ГЛОНАСС, GPS, а также BEIDOU IGSO. Показано, что наложение вековых... объектам навигационных систем GPS, ГЛОНАСС и BEIDOU IGSO. Кроме того, как показано... глобальных навигационных систем: ГЛОНАСС, GPS и BEIDOU IGSO. 64 Полученные оценки хорошо... отработавших объектов СРНС ГЛОНАСС, GPS и BEIDOU IGSO. Показано, что влияние вековых...