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JPS56143973A - Radar apparatus - Google Patents

Radar apparatus

Info

Publication number
JPS56143973A
JPS56143973A JP4726980A JP4726980A JPS56143973A JP S56143973 A JPS56143973 A JP S56143973A JP 4726980 A JP4726980 A JP 4726980A JP 4726980 A JP4726980 A JP 4726980A JP S56143973 A JPS56143973 A JP S56143973A
Authority
JP
Japan
Prior art keywords
transmission
low
altitude
coefft
monopulse
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.)
Granted
Application number
JP4726980A
Other languages
Japanese (ja)
Other versions
JPH0137711B2 (en
Inventor
Tetsuo Kirimoto
Yoshimasa Ohashi
Tomomasa Kondo
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4726980A priority Critical patent/JPS56143973A/en
Publication of JPS56143973A publication Critical patent/JPS56143973A/en
Publication of JPH0137711B2 publication Critical patent/JPH0137711B2/ja
Granted 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
    • G01S13/66—Radar-tracking systems; Analogous systems
    • G01S13/68—Radar-tracking systems; Analogous systems for angle tracking only

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

PURPOSE:To remove monopulse effect and improve accuracy for low-altitude targets by correcting the signals received by the receiving antennas arranged in a vertical direction and one transmission-reception antenna by the prescribed coefft. and subjecting these to complex-addition processing. CONSTITUTION:The signals received by N-1 pieces of the receiving antennas 19... disposed in the position of a height hi at every prescribed interval in one row in a vertical direction and a transmission-reception antenna 18 are applied to a signal processing unit 27 via a receiving antenna change-over device 20 and a receiver 21. The distance measuring, relative speed information R0, v by a transmission-reception change-over device 23, a receiver 22, a distance measuring device 25, a target speed measuring device 26 based on Doppler signal, etc. are also applied to this unit 27, and the respective received signals are phase-corrected by the coefft. ti based on the equation I and are complex-added. Thereby, the monopulse effect based on the indirectly reflected waves from a low-altitude target 7 from the sea surface 11 etc. is removed and the low-altitude target is searched and tracked with high accuracy. In the equation, lambda is transmission wavelength; Tr is transmission period; theta0 is the variable in signal processing; K is a constant.
JP4726980A 1980-04-10 1980-04-10 Radar apparatus Granted JPS56143973A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4726980A JPS56143973A (en) 1980-04-10 1980-04-10 Radar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4726980A JPS56143973A (en) 1980-04-10 1980-04-10 Radar apparatus

Publications (2)

Publication Number Publication Date
JPS56143973A true JPS56143973A (en) 1981-11-10
JPH0137711B2 JPH0137711B2 (en) 1989-08-09

Family

ID=12770570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4726980A Granted JPS56143973A (en) 1980-04-10 1980-04-10 Radar apparatus

Country Status (1)

Country Link
JP (1) JPS56143973A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548219A (en) * 1977-06-17 1979-01-22 Lucas Industries Ltd Fuel pump device
JPS5482191A (en) * 1977-12-14 1979-06-30 Japan Radio Co Ltd Incoming wave signal incident angle detecting system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS548219A (en) * 1977-06-17 1979-01-22 Lucas Industries Ltd Fuel pump device
JPS5482191A (en) * 1977-12-14 1979-06-30 Japan Radio Co Ltd Incoming wave signal incident angle detecting system

Also Published As

Publication number Publication date
JPH0137711B2 (en) 1989-08-09

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