ES410345A1 - Doppler radar systems - Google Patents

Doppler radar systems

Info

Publication number
ES410345A1
ES410345A1 ES410345A ES410345A ES410345A1 ES 410345 A1 ES410345 A1 ES 410345A1 ES 410345 A ES410345 A ES 410345A ES 410345 A ES410345 A ES 410345A ES 410345 A1 ES410345 A1 ES 410345A1
Authority
ES
Spain
Prior art keywords
frequency
doppler
doppler signal
signal
appears
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
Application number
ES410345A
Other languages
Spanish (es)
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.)
Siemens Schweiz AG
Original Assignee
Siemens Albis AG
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 Siemens Albis AG filed Critical Siemens Albis AG
Publication of ES410345A1 publication Critical patent/ES410345A1/en
Expired 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
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/526—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on the whole spectrum without loss of range information, e.g. using delay line cancellers or comb filters
    • G01S13/528—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on the whole spectrum without loss of range information, e.g. using delay line cancellers or comb filters with elimination of blind speeds

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

A radar procedure according to the pulsed doppler principle, in which, by mixing the echo and emission signal frequencies, a video doppler signal is formed, in which the video doppler signal is conducted through a doppler filter whose lower limit frequency does not drop below a certain value due to the depression of the fixed mark and whose upper limit frequency corresponds to at least approximately half the repetition frequency of the pulses, and in which, above the Based on the doppler signal that appears, a pulse repetition frequency determined in advance that does not cause blind speeds is connected in each case, characterized in that the frequency spectrum of the doppler signal that appears is analyzed and that from this analysis they derive criteria for the variation of the frequency of emission and/or repetition of the impulses. (Machine-translation by Google Translate, not legally binding)
ES410345A 1972-01-06 1973-01-04 Doppler radar systems Expired ES410345A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH16272A CH533313A (en) 1972-01-06 1972-01-06 Radar method based on the pulse Doppler principle

Publications (1)

Publication Number Publication Date
ES410345A1 true ES410345A1 (en) 1976-05-01

Family

ID=4180666

Family Applications (1)

Application Number Title Priority Date Filing Date
ES410345A Expired ES410345A1 (en) 1972-01-06 1973-01-04 Doppler radar systems

Country Status (9)

Country Link
AT (1) AT332458B (en)
BE (1) BE793702A (en)
CH (1) CH533313A (en)
DE (1) DE2206887A1 (en)
ES (1) ES410345A1 (en)
GB (1) GB1408289A (en)
IT (1) IT986873B (en)
LU (1) LU66789A1 (en)
NL (1) NL7300135A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4642641A (en) * 1976-07-29 1987-02-10 Westinghouse Electric Corp. Variable PRF target tracking radar
US4143373A (en) * 1977-09-21 1979-03-06 Hughes Aircraft Company Adaptive radar systems and methods therefor
FR2599856B1 (en) * 1979-09-07 1989-03-31 Thomson Csf RECEPTION TRANSMISSION SYSTEM FOR AGILE FREQUENCY DOPPLER RADAR

Also Published As

Publication number Publication date
BE793702A (en) 1973-05-02
LU66789A1 (en) 1973-03-19
ATA1016972A (en) 1976-01-15
IT986873B (en) 1975-01-30
NL7300135A (en) 1973-07-10
GB1408289A (en) 1975-10-01
CH533313A (en) 1973-01-31
AT332458B (en) 1976-09-27
DE2206887A1 (en) 1973-07-12

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