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


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0.21/5
...,GLONASS,QZSS, Galileo BeiDou(検討のみ) GPS,GLONASS,QZSS, Galileo,BeiDou 複数衛星系の基線解析 異機種衛星系間で 位相差を取る 異機種衛星系間で 位相差を取る 受信機ハードウェア バイアス(ISB) GLONASSチャンネル間 バイアス(IFB...,Galileo 全ての組み合わせ評価 GPS,GLONASS,QZSS,Galileo, BeiDou 全ての組み合わせ評価 複数衛星系の 信号選択 品質が良好な信号を自動 で選択する方法 3 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 各種バイアスの定義 ※第4回マルチGNSS...年12月9日 各受信機の捕捉信号と周波数 GPS 受信機 GLONASS QZSS Galileo BeiDou L1 C/A L1 P(Y) L2 P(Y) L2 C L5... ● × ● ○ ● ● ○ ○ ● × ● ○ ● ● ● ● ○ ● ● ○ ●:解析に使用、○:受信機捕捉可能、×:受信機捕捉不可 周波数(MHz) GPS QZSS Galileo GLONASS BeiDou L1, E1, B1 1575.42...解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 BeiDou衛星情報 IGSのThe Multi-GNSS Experiment (MGEX) で公開されているBeiDou情報 (http://www.igs.org/mgex/constellation#BeiDou) 衛星情報 GEO IGSO MEO Common Name BEIDOU M1 BEIDOU G2 BEIDOU G1 BEIDOU G6 BEIDOU G3 BEIDOU G4 BEIDOU G5 BEIDOU IGSO 1 BEIDOU IGSO 2 BEIDOU IGSO 3 BEIDOU IGSO 4 BEIDOU IGSO 5 BEIDOU M3 BEIDOU M4 BEIDOU M5 BEIDOU...は日本で観測する場合、低仰角で静止しているため観測データのノイ ズが多く、基線解析でフィックス解が減少するため、本業務では解析から除外した 9 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 GPS-BeiDou異機種受信機混合解析 基準点、移動点の座標を固定したFixedモードでキネマティック解析 2014年8月9日0時から24時間 基準点:Javad Delta... 仰角 SNR GPS, BeiDou MEO, IGSO BeiDou GEO BeiDou GEOとMEO間、BeiDou GEOとIGSO間でL1..., et.al, “The mixed-receiver BeiDou inter-satellite-type bias and... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 GPS-BeiDou異機種受信機混合解析ISTB補正 キネマティック解析 2014年8月9日0時から24時間 基準点:Javad Delta...と他の衛星系の補正値で入力 内部で他の衛星系との組み合わせに変換 ③ ④ QZSS L2C 1/4サイクルシフト補正機能追加 QZSS L2Cで発生する1/4 サイクルシフト補正機能実装 ① ⑤ BeiDou B1 1/2サイクルシフト補正機能追加 BeiDouで発生する1/2 サイクルシフト補正機能実装 ⑤ ④ 12 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12...の 温度依存性評価 13 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 解析 衛星系の組み合わせ ・BeiDouと他の衛星系(GPS、GLONASS、Galileo、QZSS)の組み合わせ 受信機の組み合わせ ・Javad...千葉市川のF3解を基準としたGPS のみStaticモードによるFix解 仰角マスク 15度 解析使用周波数 BeiDou - GPS, GLONASS, Galileo, QZSS : L1... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 擬似距離ISB推定 推定値 平成26年12月9日 BeiDouと他の衛星系の組み合わせ Javad Delta基準Trimble NetR9(1,2) 擬似距離ISB... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 擬似距離ISB推定温度依存性プロット BeiDouと他の衛星系の組み合わせからGPSと他の衛星系の組み合わせに変換 Javad Delta基準Trimble NetR9... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 搬送波位相ISB推定 推定値 BeiDouと他の衛星系の組み合わせ Javad Delta基準Trimble NetR9 (1,2) 搬送波位相ISB... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 搬送波位相ISB推定値温度依存性プロット BeiDouと他の衛星系の組み合わせからGPSと他の衛星系の組み合わせに変換 Javad Delta基準Trimble NetR9... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 BeiDouと他の衛星系を組み合わせた解析  擬似距離ISB及び搬送波位相ISBの値が大きい場合 これらを補正しないとフィックス解は得られない  BeiDouと他の衛星系間の搬送波位相ISBが 受信機再起動で変化するため ISBの補正値をテーブルとして与えることが難しい 衛星系の組み合わせと受信機再起動による搬送波位相ISBの変化 ●:変化あり 衛星系 信号 Javad... L1 ● BDS-QZS L1 L2 ● ● BeiDouと他の衛星系で位相差を取らない混合解析 21 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12...の補正値は0m基線の観測データで 推定した値を使用 GLONASSのIFBは0m基線の観測データで推定した値を使用   GLONASSと他の衛星系の組み合わせは位相差を取らない混合解析 BeiDouと他の衛星系の組み合わせは位相差を取らない混合解析  GPS、Galileo、QZSSの組み合わせは位相差を取る統合解析  22 平成26...衛星、PDOP平均1.1 GPS GLONASS Galileo QZSS BeiDou 時刻 (hh:mm) <GPST> 24 平成26...年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 仰角15度 衛星捕捉状況スカイプロット GPS QZSS GLONASS BeiDou 2014年7月26日6時0分0秒<GPST>のスカイプロット Galileo All... 平成26年度マルチGNSS解析技術等の開発に向けた衛星系の組み合わせに関する技術改良業務 平成26年12月9日 まとめ  BeiDouと他の衛星系の組み合わせによる擬似距離ISBは、受信機 ファームウェアや1m基線、アンテナ個体差、アンテナ交換で変化するが 測位解に影響を与えるほど大きな変化はない  BeiDouと他の衛星系の組み合わせによる搬送波位相ISBは、受信機 ファームウェアや受信機再起動で変化し、測位解に影響を与える そのため、BeiDouと他の衛星系間で位相差を取らない混合解析とする  擬似距離ISB、搬送波位相ISBとも受信機内部温度に依存して変化する が、今回の受信機の組み合わせでは変化量は小さい  GPS...



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0.07/5
... 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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...] 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... BEIDOU M1 C001 C30 BEIDOU G2 C002 n/a Inactive; uncontrolled BEIDOU G1 C003 C01 140.0° E BEIDOU.... 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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...-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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... 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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... 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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... Niels Treffers Fugro Intersite BV 北斗卫星导航系统 BeiDou : Made in China GNSS Workshop....com Navigatie in 2020 Met BeiDou Met Galileo 720 Kanalen 3 Met... √ GPS SBAS 4 √ GLONASS WAAS/ EGNOS BeiDou IRNSS India Galileo QZSS Japan... GNSS Satellieten beter (Hein 2012) BeiDou BeiDou IRNSS Signaalruis Ruisvloer No Hoogte...) Aantal Satellieten 5 www.fugro.com BeiDou-1 (Fase-1) (Compas) Frequentie 2491.75... krijgen BeiDou-1 ontvangers 2008 Aardbeving Sichuan (SMS) en deformatie metingen BeiDou 1A 30-Oct-2000 59 Oost 6 BeiDou 1B 20-Dec-2000 80 Oost BeiDou 1C 25-Mei-2003 110.5 Oost BeiDou 1D 3-Feb-2007 Mislukt www.fugro.com BeiDou en Galileo 2003 Samenwerking BeiDou en Galileo: China... en gaat de concurrentie aan.” BeiDou en Galileo gebruiken dezelfde frequenties... BeiDou en Galileo gelijktijdig dezelfde frequenties kunnen gebruiken.” 7 www.fugro.com BeiDou-2 Fase 2 BeiDou Satellite Navigation System (BDS) M1 G2 G1 IGSO... Mei BeiDou DGPS Radiobakens 2014 November: IMO goedgekeurd 8 www.fugro.com Beidou-2 Lanceringsschema (Wiki) 9 www.fugro.com GNSS Systems - BeiDou    10... Orbit (MEO) www.fugro.com BeiDou Fase 3 2017/2020 Wereldwijd beschikbaar..... 5 (zijn Geostationair) www.fugro.com BeiDou: Constellatie IGSO-1 IGSO-2 27 MEO... zijn 16 www.fugro.com BeiDou: Ontwikkelplan en status GPS PDOP... al. Date BeiDou PDOP waarden met constellatie van 35 satellieten BeiDou: Dekking... Satellieten 19 www.fugro.com BeiDou Signalen • • • • • • • • • 20 ICD (Interface Control... 37 BeiDou Satellieten (Nu 35 Satellieten gepland) www.fugro.com BeiDou frequenties... 1575.42 Mhz BeiDou 21 www.fugro.com BeiDou Electronisch signaal QPSK....fugro.com BeiDou Nav-D2 24 www.fugro.com BeiDou en Glonass Klokfout ten opzichte van GPS BeiDou tijd = 01-Jan-2006 BeiDou Tijd = ~UTC <100....fugro.com Beidou Satellietbaan nauwkeurigheid 27 www.fugro.com IGS Beidou satellietbaan nauwkeurigheid 28 www.fugro.com BeiDou Satellietbaan en....fugro.com BeiDou horizontale posities in Beijing (Trimble data) Glonass BeiDou BDS Iono GPS- Standard Iono model GPS- Glonass-BeiDou Iono GPS- Glonass-BeiDou Geo Iono 30 www.fugro.com BeiDou RTK....fugro.com RTK Verbeteringen met BeiDou 10-40% 80% 60% 40...+GLONASS+QZSS GPS+GLONASS+QZSS BeiDou RTK 10-70% Beter 40....com BeiDou L1 Ionosfeermodel • • • Lijkt op GPS Ionosfeer (Klobuchar) model. BeiDou Model... IGP. 33 www.fugro.com BeiDou professionele ontvangers • Javad Triumph Delta... 9205G4… 34 www.fugro.com BeiDou Massamarkt • Unistrong China (2013) 199... www.fugro.com Aantal zichtbare BeiDou Satellieten 3-7 1-7 8-11 3-6 0-4 8-13 2-7 10-14...-2014 42 www.fugro.com BeiDou Satellieten in zicht in Amsterdam...-2014 43 www.fugro.com BeiDou Satellieten in zicht op 01... uit te voeren. (Zelfs met 2 Beidou satellieten). Positie fouten tot 50... Oslo GPS, Glonass, BeiDou Horizontaal 10cm Geen BeiDou 8cm 5cm 3cm 0cm... = GPS +Glonass + BeiDou + Galileo Maandag 8 December 2014 zendt Fugro BeiDou satellietbaan correcties... • Kleine verbetering in nauwkeurigheid • Meer BeiDou en Galileo satellieten zullen de... metingen zal de oplossing verbeteren • BeiDou baan en klok kan beter... http://en.BeiDou.gov.cn/ Officiële BeiDou website (Engels) BeiDou Navigation Satellite...



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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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....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...