JP2002513519A - Gps受信器における取得前の周波数オフセット除去 - Google Patents
Gps受信器における取得前の周波数オフセット除去Info
- Publication number
- JP2002513519A JP2002513519A JP50634598A JP50634598A JP2002513519A JP 2002513519 A JP2002513519 A JP 2002513519A JP 50634598 A JP50634598 A JP 50634598A JP 50634598 A JP50634598 A JP 50634598A JP 2002513519 A JP2002513519 A JP 2002513519A
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- signal
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- 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.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7073—Synchronisation aspects
- H04B1/7075—Synchronisation aspects with code phase acquisition
- H04B1/708—Parallel implementation
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/30—Acquisition or tracking or demodulation of signals transmitted by the system code related
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/34—Power consumption
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/35—Constructional details or hardware or software details of the signal processing chain
- G01S19/37—Hardware or software details of the signal processing chain
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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
- G01S5/0027—Transmission from mobile station to base station of actual mobile position, i.e. position determined on mobile
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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
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
- G06F17/15—Correlation function computation including computation of convolution operations
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/69—Spread spectrum techniques
- H04B1/707—Spread spectrum techniques using direct sequence modulation
- H04B1/7097—Interference-related aspects
- H04B1/7103—Interference-related aspects the interference being multiple access interference
- H04B1/7107—Subtractive interference cancellation
- H04B1/71075—Parallel interference cancellation
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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
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
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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
- G01S5/0045—Transmission from base station to mobile station
- G01S5/0054—Transmission from base station to mobile station of actual mobile position, i.e. position calculation on base station
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
- H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
- H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
- H04B2201/70707—Efficiency-related aspects
- H04B2201/70709—Efficiency-related aspects with discontinuous detection
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
- H04W52/0274—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof
- H04W52/028—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks
- H04W52/0283—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by switching on or off the equipment or parts thereof switching on or off only a part of the equipment circuit blocks with sequential power up or power down of successive circuit blocks, e.g. switching on the local oscillator before RF or mixer stages
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mathematical Optimization (AREA)
- Mathematical Analysis (AREA)
- Computational Mathematics (AREA)
- Pure & Applied Mathematics (AREA)
- Data Mining & Analysis (AREA)
- Mathematical Physics (AREA)
- Theoretical Computer Science (AREA)
- Computing Systems (AREA)
- Algebra (AREA)
- Databases & Information Systems (AREA)
- Software Systems (AREA)
- General Engineering & Computer Science (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.それぞれの送信器からの複数の信号を受信することのできる直接シーケン ス・スペクトラム拡散受信器において、 前記複数の信号のうちの少なくとも1つの信号を受信して、中間周波信号を発 生する同調器であって、該中間周波信号をサンプリングする変換器を含んでいる 同調器、 前記変換器の出力信号から周波数オフセットを除去して、補正された信号を発 生する手段、 前記補正された信号を記憶するメモリ、並びに 前記補正された信号を処理する処理手段、 を有していることを特徴とする直接シーケンス・スペクトラム拡散受信器。 2.前記受信器がGPS受信器であり、前記送信器がGPS衛星送信器である 請求項1記載の受信器。 3.前記周波数オフセットがドップラーシフトを含んでいる請求項1記載の受 信器。 4.前記ドップラーシフトが既知である請求項3記載の受信器。 5.前記周波数オフセットが局部発信器誤差を含んでいる請求項1記載の受信 器。 6.前記局部発信器誤差が既知である請求項5記載の受信器。 7.前記中間周波信号の出力信号から周波数オフセットを除去する前記手段が 、乗算器を有している請求項1記載の受信器。 8.前記処理装置が相関器を有している請求項1記載の受信器。 9.前記相関器が並列相関器で構成されている請求項8記載の受信器。 10.前記処理装置が前記補正された信号を処理する必要があるときに前記サ ンプルを読み込むように構成されている請求項1記載の受信器。 11.それぞれの送信器からの複数の信号を受信することのできる直接シーケ ンス・スペクトラム拡散受信器において、 信号搬送波周波数を持つ入力信号を受信し、 前記搬送波周波数からオフセットされている周波数を持つ局部発信器信号を発 生し、 前記入力信号を前記局部発信器信号と混合して、中間周波信号を発生し、 前記中間周波信号を変換して、その多サンプル・ディジタル表現を作成し、 前記多サンプル・ディジタル表現を周波数オフセット信号と混合して、周波数 補正された信号を発生し、 前記周波数補正された信号をメモリに記憶し、 前記周波数補正された信号を処理すること、 を有している方法。 12.前記受信器がGPS受信器であり、前記送信器がGPS衛星送信器であ る請求項11記載の方法。 13.前記周波数オフセット信号がドップラーシフトを含んでいる請求項11 記載の方法。 14.前記ドップラーシフトが既知である請求項13記載の方法。 15.前記周波数オフセット信号が局部発信器誤差を含んでいる請求項11記 載の方法。 16.前記局部発信器誤差が既知である請求項15記載の方法。 17.前記多サンプル・ディジタル表現を周波数オフセット信号と混合する前 記ステップが、ディジタル乗算を有している請求項11記載の方法。 18.前記処理が、前記周波数補正された信号とレプリカ信号との相関を有し ている請求項11記載の方法。 19.相関が並列相関よりなる請求項18記載の方法。 20.前記処理が、該処理を行う必要があるときに前記メモリから読み出すこ とを含んでいる請求項11記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US2162896P | 1996-07-12 | 1996-07-12 | |
US60/021,628 | 1996-07-12 | ||
US08/883,160 US6151353A (en) | 1996-07-12 | 1997-06-26 | Pre-acquisition frequency offset removal in a GPS receiver |
US08/883,160 | 1997-06-26 | ||
PCT/US1997/013117 WO1998002973A1 (en) | 1996-07-12 | 1997-07-03 | Pre-acquisition frequency offset removal in a gps receiver |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002513519A true JP2002513519A (ja) | 2002-05-08 |
JP3992294B2 JP3992294B2 (ja) | 2007-10-17 |
Family
ID=26694925
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50634598A Expired - Fee Related JP3992294B2 (ja) | 1996-07-12 | 1997-07-03 | Gps受信器における取得前の周波数オフセット除去 |
Country Status (9)
Country | Link |
---|---|
US (1) | US6151353A (ja) |
EP (1) | EP0910903B1 (ja) |
JP (1) | JP3992294B2 (ja) |
AU (1) | AU4046397A (ja) |
DE (1) | DE69731200T2 (ja) |
ES (1) | ES2230620T3 (ja) |
MY (1) | MY120702A (ja) |
PT (1) | PT910903E (ja) |
WO (1) | WO1998002973A1 (ja) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2012533080A (ja) * | 2009-07-15 | 2012-12-20 | トップコン ジーピーエス,エルエルシー | アンテナ・ユニットのセットからの信号を処理するナビゲーション受信機 |
JP2013048488A (ja) * | 2012-11-20 | 2013-03-07 | Yamaha Corp | 相関器 |
KR101725308B1 (ko) * | 2009-04-30 | 2017-04-26 | 이스라엘 에어로스페이스 인더스트리즈 리미티드 | 나노 초 레벨 정밀도를 가진 상대 시간 측정 시스템 |
KR102095391B1 (ko) * | 2018-12-31 | 2020-03-31 | 국방과학연구소 | 보정기능을 갖는 크로스아이 재밍발생장치 및 제어방법 |
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- 1997-07-03 ES ES97938048T patent/ES2230620T3/es not_active Expired - Lifetime
- 1997-07-03 AU AU40463/97A patent/AU4046397A/en not_active Abandoned
- 1997-07-03 EP EP97938048A patent/EP0910903B1/en not_active Expired - Lifetime
- 1997-07-03 DE DE69731200T patent/DE69731200T2/de not_active Expired - Lifetime
- 1997-07-03 JP JP50634598A patent/JP3992294B2/ja not_active Expired - Fee Related
- 1997-07-03 WO PCT/US1997/013117 patent/WO1998002973A1/en active IP Right Grant
- 1997-07-03 PT PT97938048T patent/PT910903E/pt unknown
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KR101725308B1 (ko) * | 2009-04-30 | 2017-04-26 | 이스라엘 에어로스페이스 인더스트리즈 리미티드 | 나노 초 레벨 정밀도를 가진 상대 시간 측정 시스템 |
JP2012533080A (ja) * | 2009-07-15 | 2012-12-20 | トップコン ジーピーエス,エルエルシー | アンテナ・ユニットのセットからの信号を処理するナビゲーション受信機 |
JP2013048488A (ja) * | 2012-11-20 | 2013-03-07 | Yamaha Corp | 相関器 |
KR102095391B1 (ko) * | 2018-12-31 | 2020-03-31 | 국방과학연구소 | 보정기능을 갖는 크로스아이 재밍발생장치 및 제어방법 |
Also Published As
Publication number | Publication date |
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AU4046397A (en) | 1998-02-09 |
US6151353A (en) | 2000-11-21 |
ES2230620T3 (es) | 2005-05-01 |
DE69731200T2 (de) | 2006-02-16 |
PT910903E (pt) | 2005-02-28 |
DE69731200D1 (de) | 2004-11-18 |
EP0910903A1 (en) | 1999-04-28 |
JP3992294B2 (ja) | 2007-10-17 |
MY120702A (en) | 2005-11-30 |
WO1998002973A1 (en) | 1998-01-22 |
EP0910903B1 (en) | 2004-10-13 |
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