HK1038840B - 使多普勒頻移信號的頻率不確定性範圍變窄的系統和方法 - Google Patents
使多普勒頻移信號的頻率不確定性範圍變窄的系統和方法Info
- Publication number
- HK1038840B HK1038840B HK02100008.8A HK02100008A HK1038840B HK 1038840 B HK1038840 B HK 1038840B HK 02100008 A HK02100008 A HK 02100008A HK 1038840 B HK1038840 B HK 1038840B
- Authority
- HK
- Hong Kong
- Prior art keywords
- pilot signal
- satellite
- narrowing
- range
- energy
- Prior art date
Links
- 238000000034 method Methods 0.000 title abstract 3
- 238000009825 accumulation Methods 0.000 abstract 2
- 238000005259 measurement Methods 0.000 abstract 1
Classifications
-
- 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
- H04B7/204—Multiple access
- H04B7/216—Code division or spread-spectrum multiple access [CDMA, SSMA]
-
- 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
-
- 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
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0024—Carrier regulation at the receiver end
- H04L2027/0026—Correction of carrier offset
- H04L2027/0034—Correction of carrier offset using hypothesis testing
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Mobile Radio Communication Systems (AREA)
- Radio Relay Systems (AREA)
- Radar Systems Or Details Thereof (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/097,842 US6249539B1 (en) | 1998-06-15 | 1998-06-15 | System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
PCT/US1999/013552 WO1999066649A1 (en) | 1998-06-15 | 1999-06-14 | System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
Publications (2)
Publication Number | Publication Date |
---|---|
HK1038840A1 HK1038840A1 (en) | 2002-03-28 |
HK1038840B true HK1038840B (zh) | 2005-04-01 |
Family
ID=22265400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HK02100008.8A HK1038840B (zh) | 1998-06-15 | 2002-01-02 | 使多普勒頻移信號的頻率不確定性範圍變窄的系統和方法 |
Country Status (11)
Country | Link |
---|---|
US (2) | US6249539B1 (zh) |
EP (1) | EP1088400B1 (zh) |
JP (1) | JP4194759B2 (zh) |
KR (1) | KR100693683B1 (zh) |
CN (1) | CN1158785C (zh) |
AT (1) | ATE344552T1 (zh) |
AU (1) | AU760427B2 (zh) |
CA (1) | CA2335136A1 (zh) |
DE (1) | DE69933869T2 (zh) |
HK (1) | HK1038840B (zh) |
WO (1) | WO1999066649A1 (zh) |
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US6249539B1 (en) * | 1998-06-15 | 2001-06-19 | Qualcomm Incorporated | System and method for narrowing the range of frequency uncertainty of a doppler shifted signal |
US6765953B1 (en) * | 1998-09-09 | 2004-07-20 | Qualcomm Incorporated | User terminal parallel searcher |
US6373882B1 (en) | 1998-11-06 | 2002-04-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Motion estimator for a CDMA mobile station |
US6668011B1 (en) | 1998-12-21 | 2003-12-23 | Nortel Networks Limited | Block detection receiver |
US6621850B1 (en) * | 1998-12-21 | 2003-09-16 | Nortel Networks Limited | Block detection receiver |
JP2000201101A (ja) * | 1999-01-07 | 2000-07-18 | Fujitsu Ltd | 拡散通信システムとその移動機 |
GB2359456B (en) | 2000-02-19 | 2003-09-17 | Nec Technologies | Method for frequency offset estimation in a direct sequence spread spectrum communications receiver |
JP2002057609A (ja) * | 2000-08-10 | 2002-02-22 | Honda Motor Co Ltd | 移動体衛星通信システム |
GB2367212B (en) | 2000-09-20 | 2004-07-07 | Nec Technologies | Evaluation of UMTS mobile receiver reference |
GB2368751B (en) | 2000-09-20 | 2004-04-21 | Nec Technologies | Removal of reference frequency offset of a local oscillator in a telecommunications receiver |
KR100525543B1 (ko) * | 2000-12-29 | 2005-10-31 | 엘지전자 주식회사 | 트랙킹 기능을 가진 프레임 동기화 및 코드 그룹 검출기 |
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JP3884244B2 (ja) * | 2001-07-04 | 2007-02-21 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | Rf送信回路およびmri装置 |
US6954508B2 (en) * | 2001-08-01 | 2005-10-11 | Sony Corporation | Automatic frequency control system adapted to compensate for an insufficient capture range |
FI120071B (fi) * | 2001-09-14 | 2009-06-15 | Nokia Corp | Menetelmä mittausten suorittamiseksi langattomassa päätelaitteessa ja langaton päätelaite |
KR100830495B1 (ko) * | 2001-12-29 | 2008-05-21 | 엘지전자 주식회사 | 도플러 천이 추정 방법 및 이를 이용한 데이터 전송 방법 |
US7738533B2 (en) * | 2002-01-07 | 2010-06-15 | Qualcomm Incorporated | Multiplexed CDMA and GPS searching |
US7266156B2 (en) * | 2002-04-26 | 2007-09-04 | Qualcomm Incorporated | Method and apparatus for reducing peak to average power ratio of a multi-carrier signal |
US7593367B2 (en) * | 2002-06-14 | 2009-09-22 | Qualcomm Incorporated | Frequency scan for CDMA acquisition |
US6836506B2 (en) * | 2002-08-27 | 2004-12-28 | Qualcomm Incorporated | Synchronizing timing between multiple air link standard signals operating within a communications terminal |
US7760765B2 (en) * | 2003-05-31 | 2010-07-20 | Qualcomm, Incorporated | System and method for the reacquisition of a gated pilot |
WO2005027353A2 (en) | 2003-09-12 | 2005-03-24 | Ems Technologies Canada, Ltd. | Hybrid frequency offset estimator |
US7302379B2 (en) * | 2003-12-07 | 2007-11-27 | Adaptive Spectrum And Signal Alignment, Inc. | DSL system estimation and parameter recommendation |
US7702002B2 (en) * | 2004-01-28 | 2010-04-20 | Qualcomm Incorporated | Rapid acquisition methods and apparatus for GPS signals |
US8144821B2 (en) * | 2005-03-24 | 2012-03-27 | Qualcomm Incorporated | CDMA frequency acquisition using a simplified crystal oscillator that is not temperature compensated |
US7609755B2 (en) * | 2005-07-28 | 2009-10-27 | Itt Manufacturing Enterprises, Inc. | Simplified timing correction for data despreading of serial offset quadrature pulse-shaped spread signals |
KR100771194B1 (ko) * | 2005-08-29 | 2007-10-30 | 삼성탈레스 주식회사 | 직접 시퀀스 확산 대역 버스트 무선 통신 시스템에서타이밍 동기를 획득하는 장치 |
US8027373B2 (en) * | 2005-09-15 | 2011-09-27 | Qualcomm Incorporated | Quick detection of signaling in a wireless communication system |
US8379721B2 (en) * | 2005-09-22 | 2013-02-19 | Qualcomm Incorported | Two pass rate control techniques for video coding using a min-max approach |
CN101322369A (zh) * | 2005-12-01 | 2008-12-10 | 汤姆逊许可公司 | 用于确定接收器中频率偏移的方法和设备 |
US8064414B2 (en) * | 2005-12-13 | 2011-11-22 | Qualcomm, Incorporated | Range extension techniques for a wireless local area network |
US8130726B2 (en) * | 2005-12-20 | 2012-03-06 | Qualcomm Incorporated | Coarse bin frequency synchronization in a communication system |
US7633995B1 (en) | 2006-02-10 | 2009-12-15 | L-3 Communications, Corp. | System and method for receiving spread spectrum encoded bursts using a common spreading code |
US7634033B1 (en) | 2006-02-10 | 2009-12-15 | L-3 Communications, Corp. | Spread spectrum detection system and method |
US7664164B1 (en) | 2006-02-10 | 2010-02-16 | L-3 Communications, Corp. | Correlation apparatus and method for accomodating spreading code frequency offset |
WO2008094701A1 (en) * | 2007-01-31 | 2008-08-07 | Signal Labs, Inc. | System and methods for multistep target detection and parameter estimation |
US7800536B2 (en) * | 2007-10-11 | 2010-09-21 | Mediatek, Inc. | Signal acquisition/tracking method and correlator for the same |
US7990929B2 (en) * | 2007-11-27 | 2011-08-02 | Harris Corporation | Wireless communications device including rake finger stage providing frequency correction and related methods |
US20090135799A1 (en) * | 2007-11-27 | 2009-05-28 | Harris Corporation | Wireless communications device including path searcher with common coherent correlator and related methods |
US8699544B2 (en) * | 2008-05-02 | 2014-04-15 | Futurewei Technologies, Inc. | System and method for wireless communications |
US8244183B2 (en) * | 2008-08-12 | 2012-08-14 | Qualcomm Incorporated | Concurrent sync channel searching |
FR2936669B1 (fr) * | 2008-09-26 | 2011-11-25 | Thales Sa | Procede pour optimiser une acquisition d'un signal a spectre etale provenant d'un satellite par un recepteur mobile |
US8369279B2 (en) | 2010-03-10 | 2013-02-05 | Broadcom Corporation | Method and system for iterative multiple frequency hypothesis testing with cell-ID detection in an E-UTRA/LTE UE receiver |
US8576830B2 (en) * | 2010-04-02 | 2013-11-05 | Broadcom Corporation | Method and system for tracking timing drift in multiple frequency hypothesis testing |
US8917704B2 (en) | 2009-12-18 | 2014-12-23 | Broadcom Corporation | Method and system for automatically rescaling an accumulation buffer in synchronization systems |
US9214945B2 (en) * | 2012-02-27 | 2015-12-15 | Realtek Semiconductor Corp. | Digital phase lock loop and method thereof |
US20150094082A1 (en) * | 2013-09-30 | 2015-04-02 | Qualcomm Incorporated | Channel estimation using cyclic correlation |
JP6360354B2 (ja) * | 2014-05-23 | 2018-07-18 | 国立研究開発法人海洋研究開発機構 | 受信装置および受信方法 |
US9900856B2 (en) * | 2015-03-20 | 2018-02-20 | Qualcomm Incorporated | Method and apparatus for time or frequency synchronization in non-geosynchronous satellite communication systems |
FR3072780B1 (fr) * | 2017-10-25 | 2020-08-28 | Airbus Defence & Space Sas | Procede et dispositif recepteur pour l’estimation d’un decalage frequentiel et d’une derive frequentielle d’un signal utile |
CN112333757B (zh) * | 2020-10-15 | 2022-11-08 | 成都市以太节点科技有限公司 | 一种无线通信测试方法及系统 |
KR20220056732A (ko) | 2020-10-28 | 2022-05-06 | 재단법인대구경북과학기술원 | 도플러 효과에 기반한 전력 감쇄 분석 시스템 및 그 방법 |
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JP5577025B2 (ja) * | 2007-03-30 | 2014-08-20 | ユニバーサル製缶株式会社 | ねじ付き缶用上塗り外面塗料組成物及びねじ付き缶 |
JP5432521B2 (ja) * | 2008-12-25 | 2014-03-05 | 出光興産株式会社 | ガソリン組成物 |
-
1998
- 1998-06-15 US US09/097,842 patent/US6249539B1/en not_active Expired - Lifetime
-
1999
- 1999-06-14 AU AU52043/99A patent/AU760427B2/en not_active Ceased
- 1999-06-14 KR KR1020007014285A patent/KR100693683B1/ko not_active IP Right Cessation
- 1999-06-14 JP JP2000555373A patent/JP4194759B2/ja not_active Expired - Lifetime
- 1999-06-14 CA CA002335136A patent/CA2335136A1/en not_active Abandoned
- 1999-06-14 EP EP99937159A patent/EP1088400B1/en not_active Expired - Lifetime
- 1999-06-14 DE DE69933869T patent/DE69933869T2/de not_active Expired - Lifetime
- 1999-06-14 AT AT99937159T patent/ATE344552T1/de not_active IP Right Cessation
- 1999-06-14 CN CNB998096814A patent/CN1158785C/zh not_active Expired - Lifetime
- 1999-06-14 WO PCT/US1999/013552 patent/WO1999066649A1/en active IP Right Grant
-
2001
- 2001-06-19 US US09/885,755 patent/US6831940B2/en not_active Expired - Fee Related
-
2002
- 2002-01-02 HK HK02100008.8A patent/HK1038840B/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
JP4194759B2 (ja) | 2008-12-10 |
AU5204399A (en) | 2000-01-05 |
DE69933869D1 (de) | 2006-12-14 |
AU760427B2 (en) | 2003-05-15 |
US6249539B1 (en) | 2001-06-19 |
KR100693683B1 (ko) | 2007-03-09 |
WO1999066649A1 (en) | 1999-12-23 |
ATE344552T1 (de) | 2006-11-15 |
CA2335136A1 (en) | 1999-12-23 |
US20010043641A1 (en) | 2001-11-22 |
CN1312979A (zh) | 2001-09-12 |
KR20010072616A (ko) | 2001-07-31 |
EP1088400A1 (en) | 2001-04-04 |
JP2002518930A (ja) | 2002-06-25 |
HK1038840A1 (en) | 2002-03-28 |
EP1088400B1 (en) | 2006-11-02 |
DE69933869T2 (de) | 2007-06-21 |
CN1158785C (zh) | 2004-07-21 |
US6831940B2 (en) | 2004-12-14 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE | Patent expired |
Effective date: 20190613 |