JP2001501312A - 一機の低地球軌道衛星を利用する位置測定 - Google Patents
一機の低地球軌道衛星を利用する位置測定Info
- Publication number
- JP2001501312A JP2001501312A JP10516688A JP51668898A JP2001501312A JP 2001501312 A JP2001501312 A JP 2001501312A JP 10516688 A JP10516688 A JP 10516688A JP 51668898 A JP51668898 A JP 51668898A JP 2001501312 A JP2001501312 A JP 2001501312A
- Authority
- JP
- Japan
- Prior art keywords
- satellite
- user terminal
- signal
- gateway
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/14—Relay systems
- H04B7/15—Active relay systems
- H04B7/185—Space-based or airborne stations; Stations for satellite systems
- H04B7/1853—Satellite systems for providing telephony service to a mobile station, i.e. mobile satellite service
- H04B7/18545—Arrangements for managing station mobility, i.e. for station registration or localisation
- H04B7/18547—Arrangements for managing station mobility, i.e. for station registration or localisation for geolocalisation of a station
- H04B7/18554—Arrangements for managing station mobility, i.e. for station registration or localisation for geolocalisation of a station using the position provided by an existing geolocalisation system
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/0009—Transmission of position information to remote stations
- G01S5/0018—Transmission from mobile station to base station
- G01S5/0036—Transmission from mobile station to base station of measured values, i.e. measurement on mobile and position calculation on base station
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/12—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves by co-ordinating position lines of different shape, e.g. hyperbolic, circular, elliptical or radial
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/08—Systems for measuring distance only
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S13/00—Systems using the reflection or reradiation of radio waves, e.g. radar systems; Analogous systems using reflection or reradiation of waves whose nature or wavelength is irrelevant or unspecified
- G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
- G01S13/06—Systems determining position data of a target
- G01S13/46—Indirect determination of position data
- G01S2013/466—Indirect determination of position data by Trilateration, i.e. two antennas or two sensors determine separately the distance to a target, whereby with the knowledge of the baseline length, i.e. the distance between the antennas or sensors, the position data of the target is determined
Landscapes
- Engineering & Computer Science (AREA)
- Remote Sensing (AREA)
- Radar, Positioning & Navigation (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Aviation & Aerospace Engineering (AREA)
- Astronomy & Astrophysics (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Navigation (AREA)
- Radar Systems Or Details Thereof (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1. 衛星通信システムのための位置決定システムであって、 ユーザーターミナルと、 既知位置及び既知速度を有する少なくとも1つの衛星と、 前記少なくとも1つの衛星を通じてユーザーターミナルと通信するためのゲー トウェイと、 範囲パラメータを決定するための範囲パラメータ決定手段と、 範囲値パラメータを決定するための範囲値パラメータ決定手段と、 前記衛星の既知位置及び既知速度、前記範囲パラメータ並びに前記範囲値パラ メータに基づいて、地球表面上におけるユーザーターミナルの位置を決定するた めの前記ゲートウェイ内の位置決定手段と を有する位置決定システム。 2. 前記範囲パラメータは衛星及びユーザーターミナル間の距離を表す請求 項1に記載の位置決定システム。 3. 前記範囲パラメータはラウンドトリップディレイを表し、前記位置決定 システムは信号のラウンドトリップディレイを測定すべくラウンドトリップディ レイ測定手段を前記ゲートウェイ内に有し、前記信号はゲートウェイから衛星を 通じてユーザーターミナルへ送信され、かつ同ユーザーターミナルから衛星を通 じてケートウェイへ再送信される請求項1に記載の位置決定システム。 4. 前記範囲値パラメータは衛星及びユーザーターミナル間の相対半径方向 速度を表す請求項1に記載の位置決定システム。 5. 前記範囲値パラメータは第1信号及び第2信号の周波数測定値を表し、 前記位置決定システムは、 前記ゲートウェイから衛星を通じて受信した第1信号の周波数を測定すべくユ ーザーターミナル内に設けられた第1周波数測定手段と、 前記第1信号の周波数測定値をゲートウェイへ送信すべくユーザーターミナル 内に設けられた送信手段と、 前記ユーザーターミナルから衛星を通じて受信した第2信号の周波数を測定す べくゲートウェイ内に設けられた第2周波数測定手段と を有する請求項1に記載の位置決定システム。 6. 前記位置決定手段は、 前記複数のパラメータを含むMx1パラメータベクトルzを形成するための手 段と、前記Mは決定されたパラメータの数であることと、 初期基準点を表すポジションベクトルXを形成する手段と、 前記衛星の既知位置及び既知速度並びに地球の形状を表す地球モデルに関する 情報を含む偏導関数マトリックスHを形成するための手段と、前記x及びHの間 の関係は、 によって与えられることと、 特定のパラメータの影響を強調すべくMxM重量マトリックスWを形成する手 段と、 反復式、即ち、 を含む請求項1に記載の位置決定システム。 回るまで使用し、その後、地球の詳細なデジタル地形モデルを使用する手段を前 記位置決定手段が含む請求項6に記載の位置決定システム。 8. 前記重量マトリックスWは測定誤差共分散マトリックスの逆数である請 求項6に記載の位置決定システム。 9. 前記地球のスムーズモデルを最初のn回の反復に対して使用し、その後 、前記地球の詳細なデジタル地形モデルを使用する手段を前記位置決定手段は含 み、前記nが所定の数である請求項6に記載の位置決定システム。 10. ユーザーターミナルと、既知位置及び既知速度を有する少なくとも1 つの衛星と、前記衛星を通じてユーザーターミナルと通信するためのゲートウェ イとを有する通信システムにおいて、ユーザーターミナルの位置を決定する方法 であって、 (a)前記衛星に対する範囲パラメータを決定する工程と、 (b)前記衛星に対する範囲値パラメータを決定する工程と、 (c)前記衛星の既知位置及び既知速度、前記範囲パラメータ並びに前記範囲 値パラメータに基づいて、地球表面上におけるユーザーターミナルの位置を決定 する工程と を含む方法。 11. 前記範囲パラメータは衛星及びユーザーターミナル間の距離を表す請 求項10に記載の方法。 12. 前記範囲パラメータはラウンドトリップディレイを表し、前記工程( a)は(i)信号のラウンドトリップディレイをケートウェイにおいて測定する 工程を含み、前記信号はゲートウェイから衛星を通じてユーザーターミナルへ送 信され、かつ同ユーザーターミナルから衛星を通じてゲートウェイへ再送信され る請求項10に記載の方法。 13. 前記範囲値パラメータは衛星及びユーザーターミナル間の相対半径方 向速度を表す請求項10に記載の方法。 14. 前記工程(b)は、 (i)ゲートウェイから衛星を通じて受信した第1信号の周波数をユーザータ ーミナルにおいて測定する工程と、 (ii)前記第1信号の周波数測定値をゲートウェイへ送信する工程と、 (iii)第2信号を前記ユーザーターミナルから衛星を通じてゲートウェイ へ送信する工程と、 (iv)前記ユーザーターミナルから衛星を通じて受信した第2信号の周波数 をゲートウェイにおいて測定する工程と、前記範囲値パラメータは前記第1信号 及び第2信号の周波数測定値を表すこと を含む請求項10に記載の方法。 15. 既知位置及び既知速度を有する少なくとも1つの衛星と、前記衛星を 通じてユーザーターミナルと通信するためのゲートウェイとを有する通信システ ムにおいて、 ゲートウェイから衛星を通じて受信した第1信号を再送信する手段と、 ゲートウェイによって衛星を通じて送信された第2信号の周波数を測定する手 段と、 前記周波数測定値をゲートウェイへ送信する手段と、 第3信号を衛星を通じてゲートウェイへ送信する手段と を有するユーザーターミナルであって、地球表面上におけるユーザーターミナル の位置は前記再送信された第1信号と、前記周波数測定値と、前記第3信号と、 前記衛星の既知位置及び既知速度とに基づいて決定可能なユーザーターミナル。
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US723,751 | 1996-09-30 | ||
US08/723,751 US6107959A (en) | 1996-09-30 | 1996-09-30 | Positioning determination using one low-Earth orbit satellite |
PCT/US1997/017330 WO1998014795A1 (en) | 1996-09-30 | 1997-09-26 | Position determination using one low-earth orbit satellite |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006282527A Division JP4113231B2 (ja) | 1996-09-30 | 2006-10-17 | 一機の低地球軌道衛星を利用する位置決定 |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2001501312A true JP2001501312A (ja) | 2001-01-30 |
JP2001501312A5 JP2001501312A5 (ja) | 2006-01-05 |
JP3905134B2 JP3905134B2 (ja) | 2007-04-18 |
Family
ID=24907516
Family Applications (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP51668898A Expired - Fee Related JP3905134B2 (ja) | 1996-09-30 | 1997-09-26 | 一機の低地球軌道衛星を利用する位置決定 |
JP2006282527A Expired - Fee Related JP4113231B2 (ja) | 1996-09-30 | 2006-10-17 | 一機の低地球軌道衛星を利用する位置決定 |
JP2008014099A Ceased JP2008175822A (ja) | 1996-09-30 | 2008-01-24 | 一機の低地球軌道衛星を利用する位置決定 |
JP2009161400A Pending JP2009244274A (ja) | 1996-09-30 | 2009-07-08 | 一機の低地球軌道衛星を利用する位置決定 |
Family Applications After (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006282527A Expired - Fee Related JP4113231B2 (ja) | 1996-09-30 | 2006-10-17 | 一機の低地球軌道衛星を利用する位置決定 |
JP2008014099A Ceased JP2008175822A (ja) | 1996-09-30 | 2008-01-24 | 一機の低地球軌道衛星を利用する位置決定 |
JP2009161400A Pending JP2009244274A (ja) | 1996-09-30 | 2009-07-08 | 一機の低地球軌道衛星を利用する位置決定 |
Country Status (13)
Country | Link |
---|---|
US (1) | US6107959A (ja) |
EP (1) | EP0941486B1 (ja) |
JP (4) | JP3905134B2 (ja) |
KR (1) | KR100489746B1 (ja) |
AT (1) | ATE231621T1 (ja) |
AU (1) | AU719703B2 (ja) |
CA (1) | CA2267561C (ja) |
DE (1) | DE69718665T2 (ja) |
HK (1) | HK1022742A1 (ja) |
RU (1) | RU2241239C2 (ja) |
TW (1) | TW363134B (ja) |
WO (1) | WO1998014795A1 (ja) |
ZA (1) | ZA978511B (ja) |
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CA2267561A1 (en) | 1998-04-09 |
JP2009244274A (ja) | 2009-10-22 |
JP2007108182A (ja) | 2007-04-26 |
ATE231621T1 (de) | 2003-02-15 |
TW363134B (en) | 1999-07-01 |
DE69718665T2 (de) | 2003-11-27 |
RU2241239C2 (ru) | 2004-11-27 |
ZA978511B (en) | 1998-06-10 |
CA2267561C (en) | 2004-10-19 |
DE69718665D1 (de) | 2003-02-27 |
KR100489746B1 (ko) | 2005-05-16 |
WO1998014795A1 (en) | 1998-04-09 |
KR20000049038A (ko) | 2000-07-25 |
AU4597697A (en) | 1998-04-24 |
AU719703B2 (en) | 2000-05-18 |
JP3905134B2 (ja) | 2007-04-18 |
HK1022742A1 (en) | 2000-08-18 |
US6107959A (en) | 2000-08-22 |
EP0941486A1 (en) | 1999-09-15 |
JP4113231B2 (ja) | 2008-07-09 |
JP2008175822A (ja) | 2008-07-31 |
EP0941486B1 (en) | 2003-01-22 |
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