MXPA02001027A - DISCRIMINACION DE FRECUENCIA EN UN SISTEMA DE PROCESAMIENTO DE SEnALES DE ESPECTRO EXTENDIDO. - Google Patents

DISCRIMINACION DE FRECUENCIA EN UN SISTEMA DE PROCESAMIENTO DE SEnALES DE ESPECTRO EXTENDIDO.

Info

Publication number
MXPA02001027A
MXPA02001027A MXPA02001027A MXPA02001027A MXPA02001027A MX PA02001027 A MXPA02001027 A MX PA02001027A MX PA02001027 A MXPA02001027 A MX PA02001027A MX PA02001027 A MXPA02001027 A MX PA02001027A MX PA02001027 A MXPA02001027 A MX PA02001027A
Authority
MX
Mexico
Prior art keywords
signal processing
processing system
spread spectrum
spectrum signal
frequency discrimination
Prior art date
Application number
MXPA02001027A
Other languages
English (en)
Inventor
K Froelich Robert
Original Assignee
Schlumberger Resource Man Serv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Schlumberger Resource Man Serv filed Critical Schlumberger Resource Man Serv
Publication of MXPA02001027A publication Critical patent/MXPA02001027A/es

Links

Classifications

    • 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
    • H04B1/70751—Synchronisation aspects with code phase acquisition using partial detection
    • H04B1/70752—Partial correlation
    • 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
    • H04B1/7073—Synchronisation aspects
    • H04B1/7075—Synchronisation aspects with code phase acquisition
    • 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
    • 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
    • H04B1/7085—Synchronisation aspects using a code tracking loop, e.g. a delay-locked loop
    • 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
    • H04B1/709—Correlator structure
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • 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
    • H04B1/713—Spread spectrum techniques using frequency hopping
    • H04B1/7156—Arrangements for sequence synchronisation
    • H04B2001/71563—Acquisition

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Radar Systems Or Details Thereof (AREA)
MXPA02001027A 1999-07-30 2000-07-28 DISCRIMINACION DE FRECUENCIA EN UN SISTEMA DE PROCESAMIENTO DE SEnALES DE ESPECTRO EXTENDIDO. MXPA02001027A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/365,108 US6178197B1 (en) 1997-06-23 1999-07-30 Frequency discrimination in a spread spectrum signal processing system
PCT/US2000/020703 WO2001010070A1 (en) 1999-07-30 2000-07-28 Frequency discrimination in a spread spectrum signal processing system

Publications (1)

Publication Number Publication Date
MXPA02001027A true MXPA02001027A (es) 2003-10-14

Family

ID=23437500

Family Applications (1)

Application Number Title Priority Date Filing Date
MXPA02001027A MXPA02001027A (es) 1999-07-30 2000-07-28 DISCRIMINACION DE FRECUENCIA EN UN SISTEMA DE PROCESAMIENTO DE SEnALES DE ESPECTRO EXTENDIDO.

Country Status (7)

Country Link
US (1) US6178197B1 (es)
EP (1) EP1205047A4 (es)
AU (1) AU6750300A (es)
BR (1) BR0012876A (es)
CA (1) CA2380607C (es)
MX (1) MXPA02001027A (es)
WO (1) WO2001010070A1 (es)

Families Citing this family (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9611425D0 (en) * 1996-05-31 1996-08-07 Tracker Network Uk Ltd Digital communications
US6366606B1 (en) * 1998-02-05 2002-04-02 Texas Instruments Incorporated Programmable correlator coprocessor device and method
US6625200B1 (en) * 1999-01-25 2003-09-23 Ericsson Inc. Multi-stage CDMA synchronization with parallel execution
US6389064B1 (en) * 1999-03-08 2002-05-14 International Business Machines Corporation Modems, methods, and computer program products for identifying a signaling alphabet in variance with an ideal alphabet due to digital impairments
KR100593476B1 (ko) * 1999-08-09 2006-06-28 에스케이 텔레콤주식회사 중첩셀 구조에서 상위셀과 하위셀간의 핸드오프 방법
DE19947019A1 (de) * 1999-09-30 2001-06-07 Infineon Technologies Ag Verfahren und Vorrichtung zum Erzeugen von spreizcodierten Signalen
US6597729B1 (en) * 2000-03-29 2003-07-22 Texas Instruments Incorporated Joint position and carrier frequency estimation method of initial frequency acquisition for a WCDMA mobile terminal
US7283580B2 (en) 2000-07-21 2007-10-16 Itron, Inc. Spread spectrum meter reading system utilizing low-speed/high-power frequency hopping
US6778513B2 (en) * 2000-09-29 2004-08-17 Arraycomm, Inc. Method and apparatus for separting multiple users in a shared-channel communication system
US7751469B2 (en) 2001-02-20 2010-07-06 Massachusetts Institute Of Technology Correlation shaping matched filter receiver
US7636403B2 (en) 2001-02-20 2009-12-22 Massachusetts Institute Of Technology Correlation shaping multi-signature receiver
US7050485B2 (en) * 2002-05-07 2006-05-23 Koninklijke Philips Electronics N.V. Iterative CDMA phase and frequency acquisition
US6725157B1 (en) * 2002-06-10 2004-04-20 Trimble Navigation Limited Indoor GPS clock
KR100641128B1 (ko) * 2002-07-12 2006-11-02 엘지전자 주식회사 이동 통신 시스템의 무선원격 검침장치 및 제어방법
AU2002339586A1 (en) * 2002-10-24 2004-05-13 Nokia Corporation Determination of the correlation phase between a signal and a replica sequence
US7417557B2 (en) * 2003-05-07 2008-08-26 Itron, Inc. Applications for a low cost receiver in an automatic meter reading system
GB0320352D0 (en) 2003-09-01 2003-10-01 Secr Defence Digital modulation waveforms for use in ranging systems
US7336739B2 (en) * 2003-09-26 2008-02-26 Lockheed Martin Corporation Cross-correlation signal detector
JP2005202248A (ja) * 2004-01-16 2005-07-28 Fujitsu Ltd オーディオ符号化装置およびオーディオ符号化装置のフレーム領域割り当て回路
US7599327B2 (en) 2004-06-24 2009-10-06 Motorola, Inc. Method and apparatus for accessing a wireless communication system
US7616707B2 (en) * 2005-07-08 2009-11-10 Research In Motion Limited Methods and apparatus for reducing a sampling rate during a sampling phase determination process
US7801255B2 (en) 2005-07-28 2010-09-21 Itt Manufacturing Enterprises, Inc. Synchronization technique for serial modulated waveforms
GB0612142D0 (en) 2006-06-20 2006-08-02 Secr Defence Spreading modulation spectrum control
US7847536B2 (en) * 2006-08-31 2010-12-07 Itron, Inc. Hall sensor with temperature drift control
US8024724B2 (en) * 2006-08-31 2011-09-20 Itron, Inc. Firmware download
US8312103B2 (en) 2006-08-31 2012-11-13 Itron, Inc. Periodic balanced communication node and server assignment
US8049642B2 (en) 2006-09-05 2011-11-01 Itron, Inc. Load side voltage sensing for AMI metrology
US9354083B2 (en) * 2006-09-15 2016-05-31 Itron, Inc. Home area networking (HAN) with low power considerations for battery devices
US8059011B2 (en) 2006-09-15 2011-11-15 Itron, Inc. Outage notification system
US8138944B2 (en) 2006-09-15 2012-03-20 Itron, Inc. Home area networking (HAN) with handheld for diagnostics
US8055461B2 (en) 2006-09-15 2011-11-08 Itron, Inc. Distributing metering responses for load balancing an AMR network
US8212687B2 (en) 2006-09-15 2012-07-03 Itron, Inc. Load side voltage sensing for AMI metrology
US7843391B2 (en) 2006-09-15 2010-11-30 Itron, Inc. RF local area network antenna design
US8787210B2 (en) 2006-09-15 2014-07-22 Itron, Inc. Firmware download with adaptive lost packet recovery
US8384558B2 (en) * 2006-10-19 2013-02-26 Itron, Inc. Extending contact life in remote disconnect applications
CN101867387A (zh) * 2010-01-06 2010-10-20 中国人民解放军海军航空工程学院 低于奈奎斯特速率采样下信号重构技术方案
TWI427938B (zh) * 2010-02-09 2014-02-21 Realtek Semiconductor Corp 無線通訊系統及無線訊號之處理方法
US10200476B2 (en) 2011-10-18 2019-02-05 Itron, Inc. Traffic management and remote configuration in a gateway-based network
US9419888B2 (en) 2011-12-22 2016-08-16 Itron, Inc. Cell router failure detection in a mesh network
KR102214914B1 (ko) * 2014-12-12 2021-02-10 삼성전자주식회사 직교 시퀀스를 이용한 노이즈 전력 추정에 기초한 패킷 검출 방법 및 송, 수신기
US10833799B2 (en) 2018-05-31 2020-11-10 Itron Global Sarl Message correction and dynamic correction adjustment for communication systems

Family Cites Families (56)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2124320C1 (de) 1971-05-17 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Schaltung zur Erzeugung einer Vielzahl verschiedener Codes
US4225935A (en) 1977-08-30 1980-09-30 Sperry Corporation Coding method and system with enhanced security
US4295204A (en) 1979-05-31 1981-10-13 Sunstein Drew E Programmable correlator
NL183862C (nl) 1980-02-04 1989-02-01 Philips Nv Telecommunicatiestelsel met gecodeerde berichtoverdracht.
US4730340A (en) 1980-10-31 1988-03-08 Harris Corp. Programmable time invariant coherent spread symbol correlator
US4477912A (en) 1982-02-12 1984-10-16 Arinc Research Corporation Correlation data communications system
US4707839A (en) 1983-09-26 1987-11-17 Harris Corporation Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform
US4567588A (en) 1984-03-23 1986-01-28 Sangamo Weston, Inc. Synchronization system for use in direct sequence spread spectrum signal receiver
US4621365A (en) * 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
US4785463A (en) 1985-09-03 1988-11-15 Motorola, Inc. Digital global positioning system receiver
DE3601576A1 (de) 1986-01-21 1987-07-23 Standard Elektrik Lorenz Ag Empfaenger fuer bandgespreizte signale
DE3633769A1 (de) 1986-10-03 1988-04-14 Endress Hauser Gmbh Co Digitaler korrelator
US4841544A (en) 1987-05-14 1989-06-20 The Charles Stark Draper Laboratory, Inc. Digital direct sequence spread spectrum receiver
US4903225A (en) 1988-12-23 1990-02-20 Ampex Corporation High speed digital data correlator having a synchronous pipelined full adder cell array
JP2718978B2 (ja) 1989-03-02 1998-02-25 株式会社トキメック データ伝送方式
US5146471A (en) 1989-03-23 1992-09-08 Echelon Systems Corporation Correlator for spread spectrum communications systems
FR2653286A1 (fr) 1989-10-12 1991-04-19 Europ Agence Spatiale Procede et circuit d'acquisition de code pour recepteur de signal a spectre etale.
US5216696A (en) 1989-12-22 1993-06-01 Comsat Laboratories Programmable noise bandwidth reduction by means of digital averaging
US5031192A (en) 1990-02-05 1991-07-09 United States Of America As Represented By The Secretary Of The Air Force Synthetic demodulation of spread spectrum signals
US5157686A (en) 1990-05-24 1992-10-20 Cylink Corporation Method and apparatus for the modulation of spread spectrum radio signals
US5166952A (en) 1990-05-24 1992-11-24 Cylink Corporation Method and apparatus for the reception and demodulation of spread spectrum radio signals
US5253268A (en) 1990-05-24 1993-10-12 Cylink Corporation Method and apparatus for the correlation of sample bits of spread spectrum radio signals
US5377232A (en) 1992-01-09 1994-12-27 Cellnet Data Systems, Inc. Frequency synchronized bidirectional radio system
US5414729A (en) 1992-01-24 1995-05-09 Novatel Communications Ltd. Pseudorandom noise ranging receiver which compensates for multipath distortion by making use of multiple correlator time delay spacing
US5276706A (en) 1992-05-20 1994-01-04 Hughes Aircraft Company System and method for minimizing frequency offsets between digital communication stations
JP2771757B2 (ja) 1992-06-29 1998-07-02 三菱電機株式会社 スペクトル拡散通信用受信装置のデータ復調回路
JP2561232B2 (ja) 1992-08-31 1996-12-04 双葉電子工業株式会社 スぺクトラム拡散受信装置及びこの装置を用いたスぺクトラム拡散送受信装置
US5291517A (en) 1992-12-31 1994-03-01 Gte Government Systems Corporation Carrier freuency corrector for a DSSS communication system
US5303257A (en) 1992-12-31 1994-04-12 Gte Government Systems Corporation Carrier frequency correction for a DSSS communication system
US5305349A (en) 1993-04-29 1994-04-19 Ericsson Ge Mobile Communications Inc. Quantized coherent rake receiver
WO1995010903A1 (fr) 1993-10-14 1995-04-20 Ntt Mobile Communications Network Inc. Detecteur de correlation et appareil de communication
US5440597A (en) 1993-11-23 1995-08-08 Nokia Mobile Phones Ltd. Double dwell maximum likelihood acquisition system with continuous decision making for CDMA and direct spread spectrum system
US5422909A (en) 1993-11-30 1995-06-06 Motorola, Inc. Method and apparatus for multi-phase component downconversion
US5414730A (en) 1993-12-21 1995-05-09 Unisys Corporation Asynchronous samples data demodulation system
JP2661534B2 (ja) 1993-12-28 1997-10-08 日本電気株式会社 スペクトラム拡散受信方法及び受信機
JP2655068B2 (ja) 1993-12-30 1997-09-17 日本電気株式会社 スペクトラム拡散受信機
US5719899A (en) 1994-02-25 1998-02-17 U.S. Philips Corporation Multiple access digital transmission system and a radio base station and a receiver for use in such a system
US5511090A (en) 1994-03-17 1996-04-23 Tatung Telecom Corporation Wireless frequency-division-multiple-access direct sequence spread spectrum telephone system
US5577066A (en) 1994-05-13 1996-11-19 Stanford Telecommunications, Inc. Charge-coupled-device based data-in-voice modem
US5521938A (en) 1994-07-01 1996-05-28 Motorola, Inc. Apparatus for performing frequency conversion in a communication system
US5596601A (en) 1994-08-30 1997-01-21 Lucent Technologies Inc. Method and apparatus for spread spectrum code pulse position modulation
US5623511A (en) 1994-08-30 1997-04-22 Lucent Technologies Inc. Spread spectrum code pulse position modulated receiver having delay spread compensation
US5754584A (en) 1994-09-09 1998-05-19 Omnipoint Corporation Non-coherent spread-spectrum continuous-phase modulation communication system
US5574721A (en) 1994-12-09 1996-11-12 Stanford Telecommunications, Inc. Orthogonal code tracking system having phantom carrier signal
US5691974A (en) 1995-01-04 1997-11-25 Qualcomm Incorporated Method and apparatus for using full spectrum transmitted power in a spread spectrum communication system for tracking individual recipient phase, time and energy
US5640431A (en) * 1995-03-10 1997-06-17 Motorola, Inc. Method and apparatus for offset frequency estimation for a coherent receiver
US5640416A (en) 1995-06-07 1997-06-17 Comsat Corporation Digital downconverter/despreader for direct sequence spread spectrum communications system
US5577025A (en) 1995-06-30 1996-11-19 Qualcomm Incorporated Signal acquisition in a multi-user communication system using multiple walsh channels
ZA965340B (en) 1995-06-30 1997-01-27 Interdigital Tech Corp Code division multiple access (cdma) communication system
US5805648A (en) 1995-07-31 1998-09-08 Qualcomm Incorporated Method and apparatus for performing search acquisition in a CDMA communication system
JPH09135150A (ja) 1995-11-07 1997-05-20 Toshiba Corp ディジタルフィルタと受信装置
JP2780692B2 (ja) 1995-12-06 1998-07-30 日本電気株式会社 Ｃｄｍａ受信装置
US5805584A (en) 1996-02-23 1998-09-08 L-3 Communications Corporation Multi-user acquisition procedure for point-to-multipoint synchronous CDMA systems
US6047017A (en) 1996-04-25 2000-04-04 Cahn; Charles R. Spread spectrum receiver with multi-path cancellation
US5787125A (en) 1996-05-06 1998-07-28 Motorola, Inc. Apparatus for deriving in-phase and quadrature-phase baseband signals from a communication signal
US6456644B1 (en) * 1997-06-23 2002-09-24 Cellnet Data Systems, Inc. Bandpass correlation of a spread spectrum signal

Also Published As

Publication number Publication date
BR0012876A (pt) 2002-04-09
CA2380607C (en) 2010-10-19
AU6750300A (en) 2001-02-19
WO2001010070A1 (en) 2001-02-08
CA2380607A1 (en) 2001-02-08
EP1205047A1 (en) 2002-05-15
EP1205047A4 (en) 2003-01-02
US6178197B1 (en) 2001-01-23

Similar Documents

Publication Publication Date Title
MXPA02001027A (es) DISCRIMINACION DE FRECUENCIA EN UN SISTEMA DE PROCESAMIENTO DE SEnALES DE ESPECTRO EXTENDIDO.
AU2001251424A1 (en) Interference detection, identification, extraction and reporting
GB9907725D0 (en) Signal processing
EP0992119A4 (en) PROCESSING A SPREADING SPECTRUM SIGNAL IN A FREQUENCY-ADJUSTABLE SYSTEM
HK1053398A1 (en) Non-contact signal analyzer.
HK1032466A1 (en) Coin discriminating apparatus
HK1031015A1 (en) Coin discriminating apparatus
GB2352319A8 (en) Processing a data-bearing card
HK1033490A1 (en) Coin discriminating apparatus.
SG96634A1 (en) Bank-note processing device
SG116447A1 (en) Information processing system.
GB9924899D0 (en) Detection system
HK1036866A1 (en) Coin discriminating apparatus
HK1038417A1 (en) Electronic toll collection system.
GB2347031B (en) Signal processing means
MXPA01009913A (es) Alojamiento de seguridad para mquinas vendedoras y similares.
IL142308A0 (en) Detection processing system
GB9928232D0 (en) Detection system
ZA200001529B (en) Coin-receiving device.
GB2357886B (en) Coin discrimination
EP0969425A4 (en) coin processing
GB0026431D0 (en) Banking operation system
GB2357614B (en) Signal processing apparatus
GB2361308B (en) Detection system
GB9902087D0 (en) Detection means

Legal Events

Date Code Title Description
FG Grant or registration