JP5274763B2 - 無線位置特定受信機及び信号処理装置 - Google Patents
無線位置特定受信機及び信号処理装置 Download PDFInfo
- Publication number
- JP5274763B2 JP5274763B2 JP2006285803A JP2006285803A JP5274763B2 JP 5274763 B2 JP5274763 B2 JP 5274763B2 JP 2006285803 A JP2006285803 A JP 2006285803A JP 2006285803 A JP2006285803 A JP 2006285803A JP 5274763 B2 JP5274763 B2 JP 5274763B2
- Authority
- JP
- Japan
- Prior art keywords
- signal
- reference timer
- time
- auxiliary
- processing device
- 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.)
- Expired - Fee Related
Links
- 238000012545 processing Methods 0.000 title claims description 24
- 238000005070 sampling Methods 0.000 claims description 12
- 230000007958 sleep Effects 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 9
- 230000005059 dormancy Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 claims description 3
- 239000010931 gold Substances 0.000 description 7
- 229910052737 gold Inorganic materials 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 6
- 230000000875 corresponding effect Effects 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000001360 synchronised effect Effects 0.000 description 4
- 238000013459 approach Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 3
- 238000004422 calculation algorithm Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000003111 delayed effect Effects 0.000 description 2
- 238000013213 extrapolation Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008571 general function Effects 0.000 description 1
- 150000002343 gold Chemical class 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
- G01S19/23—Testing, monitoring, correcting or calibrating of receiver elements
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
- Radar Systems Or Details Thereof (AREA)
- Radio Relay Systems (AREA)
Description
Claims (9)
- 一つ以上の無線位置特定衛星によって送られ、且つ予め決められている測距符号系列によって変調されている信号を処理するための、無線位置特定受信機(100)用の信号処理装置(20)であって、
前記信号処理装置は、主クロック信号(37)へアクセスすることができ、
前記信号処理装置(20)は、受信信号における前記測距符号系列の存在を求めて入力信号を探索するためと、前記測距符号系列の相対位相を決定するためと、の捕捉及び追尾手段を具備しており、
前記信号処理装置(20)は、前記受信機に利用可能な補助時刻基準信号(38)に基づいて、前記主クロック信号(37)の中断後に、前記測拒符号系列の前記位相のありそうな値を決定するように構成された計算手段(26)を含む、信号処理装置(20)であって、
前記補助時刻信号(38)から得られる補助基準タイマ(40)を備え、
前記計算手段(26)は、前記補助基準タイマ(40)の時刻と前記主クロック信号(37)から得られる基準タイマ(39)の時刻とを標本抽出し、前記補助基準タイマ(40)及び前記基準タイマ(39)の離隔している標本(170)と、相関ピークの相対位相(121a〜121d)とを記録し、前記記録された標本値(170、175)の何れかに基づいて休眠期間(z)後の疑似ランダム符号系列のありそうな位相を決定するように構成される、
ことを特徴とする信号処理装置(20)。 - 前記無線位置特定衛星によって送られる前記信号の前記測距符号系列に関連づけられている局部符号系列を発生させる様に構成されている一つ以上の符号発生器(28)と、
前記局部符号系列を移相し、前記受信信号中で変調されている前記測距符号系列と比較して、前記移相された局部符号系列と前記受信信号との間の相関値を提供する様に構成されている、一つの相関エンジン(25)と
を更に具備する、請求項1に記載の信号処理装置(20)。 - 前記捕捉及び追尾手段は、前記受信信号の高速フーリエ変換を行い、前記受信信号の前記高速フーリエ変換に従うことによって前記測距符号系列の相対位相を決定する様に構成されている、請求項1に記載の信号処理装置(20)。
- 前記計算手段(26)は、前記補助時刻基準信号(38)の定義されている特徴と一致する前記補助基準タイマ(40)を標本抽出し、前記基準タイマ(39)を標本抽出する様にプログラムされており、前記補助基準タイマ(40)及び前記基準タイマ(39)は、同時に、または既知の時間遅延だけ離隔している二つの瞬間に、標本抽出される、請求項1に記載の信号処理装置(20)。
- 前記計算手段(26)は、前記補助基準タイマ(40)の値に基づいて、前記基準タイマ(39)の動作の中断(z)後に、前記基準タイマ(39)とGPS時刻との間の関係を再計算する様に構成されている、請求項1に記載の信号処理装置(20)。
- 前記計算手段(26)は、
前記測距符号系列の相対位相を示す相関ピーク(121a〜121d)を提供し、
前記主クロック信号(37)の中断前における記録されているパルス時刻(170、175)と記録されている相関ピーク時刻(122a〜122c)とに基づいて、前記主クロック信号(37)または前記基準タイマ(39)の中断後における前記相関ピークの位置を決定する
様に構成されている、請求項1に記載の信号処理装置(20)。 - 電力消費を制限するために、前記相関エンジン(25)及び/または前記処理装置(26)及び/または前記主クロック(37)が一時的にスイッチを切られるかまたは低減機能状態にされることができる低電力状態を有する、請求項1に記載の信号処理装置(20)。
- 休眠期間(z)の後の衛星無線位置特定受信機(100)における衛星信号の再捕捉方法であって、
a)前記受信機(100)に利用可能な補助時刻基準信号(38)に基づいて、前記休眠期間(z)の前に捕捉された各々の前記衛星毎に、相関ピークの最も確からしい位置(123a〜123d)を決定するステップと、
b)前記最も確からしい位置(123a〜123d)の周りの位相ウィンドウ内で前記衛星の前記相関ピークを探索するステップと
を具備し、前記ステップ(a)は、
前記休眠期間(z)の前に、基準タイマ(39)に関連する、前記受信機に利用可能な補助基準タイマ(40)を標本抽出するステップと、
前記補助基準タイマ(40)及び前記基準タイマ(39)の離隔している標本(170)と前記相関ピークの相対位相(121a〜121d)とを記録するステップと、
前記休眠期間(z)の後に、前記補助基準タイマ(40)及び前記基準タイマ(39)の更なる標本(175)を得るステップと、
前記休眠期間(z)の前に捕捉された各々の前記衛星毎に、前記相関ピークの最も確からしい位置(123a〜123d)を決定するステップと
を具備する、方法。 - 前記ステップ(a)が、各測定組において前記基準タイマ(39)とGPS時刻との間の関係を計算し、前記測定組用の共通の時刻基準を確立するためにこの値を使用するステップを更に含む、請求項8に記載の方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP05109854A EP1777540B1 (en) | 2005-10-21 | 2005-10-21 | Radiolocalization receiver and signal processor |
EP05109854.9 | 2005-10-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2007155707A JP2007155707A (ja) | 2007-06-21 |
JP5274763B2 true JP5274763B2 (ja) | 2013-08-28 |
Family
ID=35985330
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006285803A Expired - Fee Related JP5274763B2 (ja) | 2005-10-21 | 2006-10-20 | 無線位置特定受信機及び信号処理装置 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7474261B2 (ja) |
EP (1) | EP1777540B1 (ja) |
JP (1) | JP5274763B2 (ja) |
AT (1) | ATE439608T1 (ja) |
DE (1) | DE602005015982D1 (ja) |
ES (1) | ES2330757T3 (ja) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9128178B2 (en) * | 2007-12-27 | 2015-09-08 | Seiko Epson Corporation | Correlation calculation process execution method, control circuit, signal processing circuit, and position calculation device |
US7986263B2 (en) * | 2008-09-22 | 2011-07-26 | Sierra Wireless, Inc. | Method and apparatus for a global navigation satellite system receiver coupled to a host computer system |
US8184049B2 (en) * | 2009-07-24 | 2012-05-22 | Broadcom Corporation | Method and system for sharing clock sources to save power on a GNSS enabled mobile device |
JP5267516B2 (ja) * | 2010-07-14 | 2013-08-21 | ソニー株式会社 | 受信装置、受信方法、コンピュータプログラム及び携帯端末 |
JP5655419B2 (ja) * | 2010-08-04 | 2015-01-21 | ソニー株式会社 | 受信装置、受信方法及び携帯端末 |
CN102780555B (zh) * | 2011-05-13 | 2017-09-29 | 中兴通讯股份有限公司 | 通信系统中的时钟同步方法及装置 |
US8644788B2 (en) | 2012-05-02 | 2014-02-04 | Skytraq Technology, Inc. | Signal receiver, portable computer and signal acquisition method used in satellite communication system |
JP6011042B2 (ja) * | 2012-06-08 | 2016-10-19 | セイコーエプソン株式会社 | 受信部駆動制御方法及び受信装置 |
CN102841361B (zh) * | 2012-09-17 | 2014-06-18 | 上海无线电设备研究所 | 一种全球卫星导航定位系统信号普通测距码快速捕获方法 |
CN112068164B (zh) * | 2020-09-15 | 2023-08-22 | 湖南国科微电子股份有限公司 | 导航卫星捕获方法、装置、卫星导航接收机及存储介质 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5331329A (en) * | 1988-05-25 | 1994-07-19 | Nauchno-Issledovatelsky Institut Kosmicheskogo Priborostoenia | Satellite-aided radio navigation positioning method and radio navigation system therefor |
US5592173A (en) * | 1994-07-18 | 1997-01-07 | Trimble Navigation, Ltd | GPS receiver having a low power standby mode |
US5594453A (en) * | 1994-11-01 | 1997-01-14 | Trimble Navigation, Ltd | GPS receiver having a rapid acquisition of GPS satellite signals |
US5874914A (en) * | 1995-10-09 | 1999-02-23 | Snaptrack, Inc. | GPS receiver utilizing a communication link |
JPH10170626A (ja) * | 1996-12-05 | 1998-06-26 | Matsushita Electric Ind Co Ltd | Gps受信機 |
US5893044A (en) * | 1997-01-21 | 1999-04-06 | Motorola Inc. | Real time clock apparatus for fast acquisition or GPS signals |
US6212398B1 (en) * | 1998-12-03 | 2001-04-03 | Ericsson Inc. | Wireless telephone that rapidly reacquires a timing reference from a wireless network after a sleep mode |
US6519237B1 (en) * | 1999-05-28 | 2003-02-11 | Koninklijke Philips Electronics N.V. | Apparatus and method for parallel searching and correlating for CDMA system |
AU2915201A (en) * | 1999-12-30 | 2001-07-16 | Morphics Technology, Inc. | A fast initial acquisition and search device for a spread spectrum communicationsystem |
JP4543480B2 (ja) * | 2000-03-02 | 2010-09-15 | ソニー株式会社 | Gps受信機、およびgps測位方法 |
US6778136B2 (en) * | 2001-12-13 | 2004-08-17 | Sirf Technology, Inc. | Fast acquisition of GPS signal |
US6937187B2 (en) * | 2000-11-17 | 2005-08-30 | Global Locate, Inc. | Method and apparatus for forming a dynamic model to locate position of a satellite receiver |
US20050013350A1 (en) * | 2001-06-06 | 2005-01-20 | Coralli Alessandro Vanelli | Method and apparatus for canceling pilot interference in a wireless communication system |
US6662107B2 (en) * | 2001-10-30 | 2003-12-09 | Sirf Technology, Inc. | Calibrated real time clock for acquisition of GPS signals during low power operation |
US6937643B2 (en) * | 2002-04-30 | 2005-08-30 | Qualcomm Inc | ROM-based PN generation for wireless communication |
US7102689B2 (en) * | 2003-05-05 | 2006-09-05 | Broadcom Corporation | Systems and methods for decoding teletext messages |
JP4164662B2 (ja) * | 2003-06-10 | 2008-10-15 | 日本電気株式会社 | 携帯端末およびgps時刻維持方法 |
US7362263B2 (en) * | 2003-09-04 | 2008-04-22 | Seiko Epson Corporation | Keeping accurate time for a hybrid GPS receiver and mobile phone when powered off |
US7071871B2 (en) * | 2004-03-25 | 2006-07-04 | Raytheon Company | Low power dissipation tracking architecture for GPS navigation systems |
JP4769452B2 (ja) * | 2004-12-20 | 2011-09-07 | 古野電気株式会社 | 測位用信号受信装置 |
-
2005
- 2005-10-21 EP EP05109854A patent/EP1777540B1/en not_active Not-in-force
- 2005-10-21 ES ES05109854T patent/ES2330757T3/es active Active
- 2005-10-21 DE DE602005015982T patent/DE602005015982D1/de active Active
- 2005-10-21 AT AT05109854T patent/ATE439608T1/de not_active IP Right Cessation
-
2006
- 2006-10-20 US US11/584,469 patent/US7474261B2/en active Active
- 2006-10-20 JP JP2006285803A patent/JP5274763B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE439608T1 (de) | 2009-08-15 |
US20070090994A1 (en) | 2007-04-26 |
DE602005015982D1 (de) | 2009-09-24 |
ES2330757T3 (es) | 2009-12-15 |
US7474261B2 (en) | 2009-01-06 |
JP2007155707A (ja) | 2007-06-21 |
EP1777540B1 (en) | 2009-08-12 |
EP1777540A1 (en) | 2007-04-25 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5274763B2 (ja) | 無線位置特定受信機及び信号処理装置 | |
US5893044A (en) | Real time clock apparatus for fast acquisition or GPS signals | |
EP1433001B1 (en) | Global positioning apparatus and method for using a temperature compensated oscillator to perform a position fix | |
JP3738271B2 (ja) | Gps受信機とgps信号を処理する方法 | |
KR100457329B1 (ko) | Gps신호를처리하는방법및gps수신기 | |
JP2006314095A (ja) | 混成航法衛星受信機/携帯電話組合せ、全地球測位システム受信機部と通信送受信機部を含む単一の携帯装置を備える一体化された衛星航法受信機/通信装置組合せシステム、及び航法受信機と携帯電話を一体的に組み合わせるときに基準発振器に必要な水晶の数を2個に制限する方法 | |
JP2006215027A (ja) | 航法衛星受信機システムおよび信号の弱い環境で高感度航法衛星受信機のウォームスタートを速めるための方法 | |
EP1979760A2 (en) | An unassisted indoor gps receiver | |
CN112639530B (zh) | 包括定位信号的信号检测的方法和系统 | |
EP1512985A2 (en) | Combined navigation satellite receiver/communications device | |
JP4177585B2 (ja) | Gps受信機および受信方法 | |
EP2105756A1 (en) | A positioning device and a method of operating thereof | |
JP3864807B2 (ja) | 相関検出装置及び相関検出方法並びに受信装置 | |
JP2003232844A (ja) | 受信装置 | |
WO2002088769A1 (en) | Power managing apparatus for receiving of global positioning system | |
JP2006234847A (ja) | Gps受信機およびgps受信機の測位方法 | |
JP5455542B2 (ja) | Gps受信機とgps信号を処理する方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A821 Effective date: 20091019 |
|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20091019 |
|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20100113 |
|
RD04 | Notification of resignation of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7424 Effective date: 20100215 |
|
RD03 | Notification of appointment of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7423 Effective date: 20100219 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20111122 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120221 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120224 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120322 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120327 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20120423 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20120426 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120522 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120925 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20121225 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20121228 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130124 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130129 |
|
A601 | Written request for extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A601 Effective date: 20130225 |
|
A602 | Written permission of extension of time |
Free format text: JAPANESE INTERMEDIATE CODE: A602 Effective date: 20130228 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130325 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20130416 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20130515 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 Ref document number: 5274763 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |