BE772072Q - Systeme d'autocorrrelation - Google Patents

Systeme d'autocorrrelation

Info

Publication number
BE772072Q
BE772072Q BE772072A BE772072A BE772072Q BE 772072 Q BE772072 Q BE 772072Q BE 772072 A BE772072 A BE 772072A BE 772072 A BE772072 A BE 772072A BE 772072 Q BE772072 Q BE 772072Q
Authority
BE
Belgium
Prior art keywords
autocorrrelation
autocorrrelation system
Prior art date
Application number
BE772072A
Other languages
English (en)
Inventor
F S Gutleber
Original Assignee
Int Standard Electric Corp
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 Int Standard Electric Corp filed Critical Int Standard Electric Corp
Application granted granted Critical
Publication of BE772072Q publication Critical patent/BE772072Q/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • 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
    • 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
    • G01S13/32—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated
    • G01S13/325—Systems for measuring distance only using transmission of continuous waves, whether amplitude-, frequency-, or phase-modulated, or unmodulated using transmission of coded signals, e.g. P.S.K. signals
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Radar Systems Or Details Thereof (AREA)
BE772072A 1967-06-13 1971-09-02 Systeme d'autocorrrelation BE772072Q (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US64569767A 1967-06-13 1967-06-13

Publications (1)

Publication Number Publication Date
BE772072Q true BE772072Q (fr) 1972-01-17

Family

ID=24590091

Family Applications (1)

Application Number Title Priority Date Filing Date
BE772072A BE772072Q (fr) 1967-06-13 1971-09-02 Systeme d'autocorrrelation

Country Status (3)

Country Link
US (1) US3519746A (fr)
BE (1) BE772072Q (fr)
FR (1) FR1585273A (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3789148A (en) * 1970-02-18 1974-01-29 Nissan Motor Multiplex transmission method
DE2124320C1 (de) * 1971-05-17 1978-04-27 Siemens Ag, 1000 Berlin Und 8000 Muenchen Elektrische Schaltung zur Erzeugung einer Vielzahl verschiedener Codes
FR2374651A1 (fr) * 1976-12-16 1978-07-13 Labo Cent Telecommunicat Dispositif d'elimination des lobes secondaires d'auto-correlation d'un signal continu periodique code en phase
US4215244A (en) * 1978-12-18 1980-07-29 The United States Of America As Represented By The Secretary Of The Army Self-adaptive mobile subscriber access system employing time division multiple accessing
US4270207A (en) * 1979-08-06 1981-05-26 The United States Of America As Represented By The Secretary Of The Army Combined ECCM/diversity tropospheric transmission system
US4293953A (en) * 1979-12-28 1981-10-06 The United States Of America As Represented By The Secretary Of The Army Bi-orthogonal PCM communications system employing multiplexed noise codes
FR2480049B1 (fr) * 1980-04-03 1987-08-14 Bousquet Jean Claude Systeme de transmission de donnees numeriques par paquets de synchronisation
US4561067A (en) * 1982-06-23 1985-12-24 British Telecommunications Multi-channel cross-talk interference reduction circuit using modulation-multiplying-demodulation correlator
US4475186A (en) * 1982-07-28 1984-10-02 The United States Of America As Represented By The Secretary Of The Army Multiplexed noise coded switching system
FR2534096A1 (fr) * 1982-10-04 1984-04-06 Tecsi Software Systeme de transmission numerique a etalement du spectre par codage avec des suites pseudo-aleatoires
FR2540314A1 (fr) * 1983-01-31 1984-08-03 Trt Telecom Radio Electr Procede d'initialisation des coefficients de filtres dans un dispositif d'annulation d'echos proche et lointain et dispositif de mise en oeuvre de ce procede
US5067114A (en) * 1983-03-21 1991-11-19 Develco, Inc. Correlation for combinational coded telemetry
US4787093A (en) * 1983-03-21 1988-11-22 Develco, Inc. Combinatorial coded telemetry
US4512024A (en) * 1983-06-29 1985-04-16 The United States Of America As Represented By The Secretary Of The Army Impulse autocorrelation function communications system
IN161261B (fr) * 1983-07-08 1987-10-31 Decca Ltd
US4599733A (en) * 1983-09-19 1986-07-08 The United States Of America As Represented By The Secretary Of The Army Multilevel noise code mate pair generation and utilization of such codes
US4542515A (en) * 1983-11-14 1985-09-17 The United States Of America As Represented By The Secretary Of The Army Multilevel mate pair code compressor for codes expanded by the process of butting
US4511885A (en) * 1983-11-28 1985-04-16 The United States Of America As Represented By The Secretary Of The Army Code compressor for multilevel interleaved multiplexed noise codes
US4549303A (en) * 1983-12-27 1985-10-22 The United States Of America As Represented By The Secretary Of The Army Multichannel time division multiplexed trunk transmission link
FR2652967A2 (fr) * 1988-12-02 1991-04-12 Aeta Procede et dispositif de demodulation a gradient de phase minimal d'un signal representatif de donnees.
EP0727881B1 (fr) * 1995-02-20 2004-11-24 Canon Kabushiki Kaisha Dispositif de communication à spectre étalé

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3432619A (en) * 1963-07-31 1969-03-11 Ibm Random-access communication system employing pseudo-random signals
US3335409A (en) * 1964-06-25 1967-08-08 Westinghouse Electric Corp Permutation apparatus

Also Published As

Publication number Publication date
FR1585273A (fr) 1970-01-16
US3519746A (en) 1970-07-07

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