FR2705001B1 - Système de compression de signaux pour communications dans un spectre étendu. - Google Patents

Système de compression de signaux pour communications dans un spectre étendu.

Info

Publication number
FR2705001B1
FR2705001B1 FR9405001A FR9405001A FR2705001B1 FR 2705001 B1 FR2705001 B1 FR 2705001B1 FR 9405001 A FR9405001 A FR 9405001A FR 9405001 A FR9405001 A FR 9405001A FR 2705001 B1 FR2705001 B1 FR 2705001B1
Authority
FR
France
Prior art keywords
compression system
wide spectrum
signal compression
spectrum communications
communications
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
Application number
FR9405001A
Other languages
English (en)
Other versions
FR2705001A1 (fr
Inventor
Colin Andrew Cleverly
Terence Bayes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roke Manor Research Ltd
Original Assignee
Roke Manor Research Ltd
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 Roke Manor Research Ltd filed Critical Roke Manor Research Ltd
Publication of FR2705001A1 publication Critical patent/FR2705001A1/fr
Application granted granted Critical
Publication of FR2705001B1 publication Critical patent/FR2705001B1/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

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
    • 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
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave
    • G01S13/28—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave with time compression of received pulses
    • 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
    • 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
    • H04B1/709—Correlator structure

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Remote Sensing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Mathematical Analysis (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Data Mining & Analysis (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Computing Systems (AREA)
  • Databases & Information Systems (AREA)
  • Algebra (AREA)
  • Signal Processing (AREA)
  • Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
  • Radar Systems Or Details Thereof (AREA)
FR9405001A 1993-05-07 1994-04-26 Système de compression de signaux pour communications dans un spectre étendu. Expired - Fee Related FR2705001B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9309470A GB2277853A (en) 1993-05-07 1993-05-07 Signal compression signals

Publications (2)

Publication Number Publication Date
FR2705001A1 FR2705001A1 (fr) 1994-11-10
FR2705001B1 true FR2705001B1 (fr) 1996-04-05

Family

ID=10735125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR9405001A Expired - Fee Related FR2705001B1 (fr) 1993-05-07 1994-04-26 Système de compression de signaux pour communications dans un spectre étendu.

Country Status (4)

Country Link
US (1) US5426665A (fr)
DE (1) DE4410252A1 (fr)
FR (1) FR2705001B1 (fr)
GB (1) GB2277853A (fr)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9419106D0 (en) * 1994-09-22 1994-11-09 Secr Defence Detection of spread spectrum signals
SE503786C2 (sv) * 1994-12-09 1996-09-02 Ericsson Telefon Ab L M Förfarande för bestämning av tidsläget för en periodiskt återkommande signal
US6111911A (en) * 1995-06-07 2000-08-29 Sanconix, Inc Direct sequence frequency ambiguity resolving receiver
US6363175B1 (en) 1997-04-02 2002-03-26 Sonyx, Inc. Spectral encoding of information
US6507804B1 (en) 1997-10-14 2003-01-14 Bently Nevada Corporation Apparatus and method for compressing measurement data corelative to machine status
US6026348A (en) * 1997-10-14 2000-02-15 Bently Nevada Corporation Apparatus and method for compressing measurement data correlative to machine status
US6397276B1 (en) 1999-03-29 2002-05-28 Eugene Rzyski Data transmission by an alternating-frequency analog signal
US9020756B2 (en) * 1999-04-23 2015-04-28 Global Locate, Inc. Method and apparatus for processing satellite positioning system signals
US6704348B2 (en) 2001-05-18 2004-03-09 Global Locate, Inc. Method and apparatus for computing signal correlation at multiple resolutions
US6606346B2 (en) * 2001-05-18 2003-08-12 Global Locate, Inc. Method and apparatus for computing signal correlation
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
US7196660B2 (en) * 2000-11-17 2007-03-27 Global Locate, Inc Method and system for determining time in a satellite positioning system
US6907091B2 (en) * 2001-01-31 2005-06-14 Lucent Technologies Inc. Segmented architecture for multiple sequence detection and identification with frequency offset compensation
US6891880B2 (en) * 2001-05-18 2005-05-10 Global Locate, Inc. Method and apparatus for performing signal correlation
US8098716B2 (en) * 2001-05-18 2012-01-17 Broadcom Corporation Method and apparatus for providing an energy-based signal tracking loop
US7190712B2 (en) * 2001-05-18 2007-03-13 Global Locate, Inc Method and apparatus for performing signal correlation
US6819707B2 (en) 2001-05-18 2004-11-16 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US7995682B2 (en) * 2001-05-18 2011-08-09 Broadcom Corporation Method and apparatus for performing signal processing using historical correlation data
US7567636B2 (en) 2001-05-18 2009-07-28 Global Locate, Inc. Method and apparatus for performing signal correlation using historical correlation data
US7006556B2 (en) * 2001-05-18 2006-02-28 Global Locate, Inc. Method and apparatus for performing signal correlation at multiple resolutions to mitigate multipath interference
US7769076B2 (en) * 2001-05-18 2010-08-03 Broadcom Corporation Method and apparatus for performing frequency synchronization
US7386069B2 (en) * 2004-04-26 2008-06-10 Skyworks Solutions, Inc. Multiple simultaneous frequency and code acquisition for a code division multiple access (CDMA) communication system
CN103472438A (zh) * 2013-09-24 2013-12-25 上海无线电设备研究所 多通道信号脉压时分复用装置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3278915D1 (en) * 1981-12-31 1988-09-22 Secr Defence Brit Receivers for navigation satellite systems
US4621365A (en) * 1984-11-16 1986-11-04 Hughes Aircraft Company Synchronization preamble correlation detector and frequency estimator
CH679718A5 (fr) * 1989-10-19 1992-03-31 Ascom Zelcom Ag
US5271034A (en) * 1991-08-26 1993-12-14 Avion Systems, Inc. System and method for receiving and decoding global positioning satellite signals

Also Published As

Publication number Publication date
GB2277853A (en) 1994-11-09
FR2705001A1 (fr) 1994-11-10
GB9309470D0 (en) 1993-10-27
US5426665A (en) 1995-06-20
DE4410252A1 (de) 1994-11-10

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Legal Events

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ST Notification of lapse