IL88435A - Chirped backscatter filter - Google Patents

Chirped backscatter filter

Info

Publication number
IL88435A
IL88435A IL88435A IL8843588A IL88435A IL 88435 A IL88435 A IL 88435A IL 88435 A IL88435 A IL 88435A IL 8843588 A IL8843588 A IL 8843588A IL 88435 A IL88435 A IL 88435A
Authority
IL
Israel
Prior art keywords
rsig
tsig
backscatter
frequency
frequency component
Prior art date
Application number
IL88435A
Other languages
English (en)
Original Assignee
Hughes Aircraft Co
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 Hughes Aircraft Co filed Critical Hughes Aircraft Co
Publication of IL88435A publication Critical patent/IL88435A/xx

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
    • H03H19/00—Networks using time-varying elements, e.g. N-path filters
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/4912—Receivers
    • 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/491—Details of non-pulse systems
    • G01S7/493—Extracting wanted echo signals

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
IL88435A 1987-12-21 1988-11-21 Chirped backscatter filter IL88435A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/136,063 US4928315A (en) 1987-12-21 1987-12-21 Chirped backscatter filter

Publications (1)

Publication Number Publication Date
IL88435A true IL88435A (en) 1992-11-15

Family

ID=22471108

Family Applications (1)

Application Number Title Priority Date Filing Date
IL88435A IL88435A (en) 1987-12-21 1988-11-21 Chirped backscatter filter

Country Status (8)

Country Link
US (1) US4928315A (ja)
EP (1) EP0345346B1 (ja)
JP (1) JP2665011B2 (ja)
DE (1) DE3885272T2 (ja)
IL (1) IL88435A (ja)
NO (1) NO173470C (ja)
TR (1) TR24334A (ja)
WO (1) WO1989005983A1 (ja)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5046135A (en) * 1989-11-30 1991-09-03 John E. Chance & Associates Method and apparatus for frequency stabilization of a down converter
US5852418A (en) * 1997-11-12 1998-12-22 Lockheed Martin Corporation Notched-spectrum swept-frequency generator and method therefor
US6906560B1 (en) * 2004-01-20 2005-06-14 Harris Corporation Phase-continuous frequency synthesizer
US7603098B2 (en) * 2004-03-31 2009-10-13 Broadcom Corporation Programmable IF frequency filter for enabling a compromise between DC offset rejection and image rejection
US7596195B2 (en) * 2004-03-31 2009-09-29 Broadcom Corporation Bandpass filter with reversible IQ polarity to enable a high side or low side injection receiver architecture

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3744015A (en) * 1972-04-14 1973-07-03 Us Navy Automatic electronic filter system
US4067013A (en) * 1976-11-12 1978-01-03 The United States Of America As Represented By The Navy Automatic thresholding and reference circuit
US4177430A (en) * 1978-03-06 1979-12-04 Rockwell International Corporation Adaptive noise cancelling receiver
US4267605A (en) * 1979-02-26 1981-05-12 Trio Kabushiki Kaisha Interference eliminator in communication receiver
NL8204687A (nl) * 1982-12-03 1984-07-02 Philips Nv Klokgestuurde filterinrichting.
US4731587A (en) * 1985-12-10 1988-03-15 Hughes Aircraft Company Enhanced quadrature notch filter

Also Published As

Publication number Publication date
EP0345346A1 (en) 1989-12-13
TR24334A (tr) 1991-09-13
EP0345346B1 (en) 1993-10-27
JP2665011B2 (ja) 1997-10-22
NO173470C (no) 1993-12-15
WO1989005983A1 (en) 1989-06-29
NO893209L (no) 1989-08-09
JPH02503357A (ja) 1990-10-11
DE3885272T2 (de) 1994-02-17
NO893209D0 (no) 1989-08-09
DE3885272D1 (de) 1993-12-02
NO173470B (no) 1993-09-06
US4928315A (en) 1990-05-22

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