JPS56143974A - Radar apparatus - Google Patents

Radar apparatus

Info

Publication number
JPS56143974A
JPS56143974A JP4727080A JP4727080A JPS56143974A JP S56143974 A JPS56143974 A JP S56143974A JP 4727080 A JP4727080 A JP 4727080A JP 4727080 A JP4727080 A JP 4727080A JP S56143974 A JPS56143974 A JP S56143974A
Authority
JP
Japan
Prior art keywords
distance measuring
low
coefft
monopulse
altitude
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
JP4727080A
Other languages
Japanese (ja)
Other versions
JPH0137712B2 (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 JP4727080A priority Critical patent/JPS56143974A/en
Publication of JPS56143974A publication Critical patent/JPS56143974A/en
Publication of JPH0137712B2 publication Critical patent/JPH0137712B2/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 the monopulse effect by low-altitude targets by subjecting the signals received by the antennas arranged in a vertical direction to phase correction, complex-addition processing, etc. by the prescribed coefft. associating to distance measuring and relative speed information. CONSTITUTION:N pieces of the antenna elements 18... disposed at a height hi at prescribed intervals in one row in a vertical direction are successively changed over. On the other hand, the receiver 21 and transmitter 22 connecting to a change-over device 19 are changed over by a transmission-reception change-over device 20, and the distance measuring and relative speed information R0, v by the Doppler processing in a distance measuring device 24 and a speed measuring device 25 based on the time-dividedly received signals and reception of the elements 18... are applied to a signal processing unit 26. The unit 26 calculates the correction coefft. ti based on the equation I, and subjects the respective received signals to phase correction and complex-addition. Thereby, the monopulse effect by the indirectly reflected waves of a low-altitude target 7 reflected by the sea surface 11 is removed, and the searching and tracking of the low-altitude target are accomplished with high accuracy. In the equation, lambda, Tr are transmission wavelength and period; theta0 is the variable in signal processing; K is a constant.
JP4727080A 1980-04-10 1980-04-10 Radar apparatus Granted JPS56143974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4727080A JPS56143974A (en) 1980-04-10 1980-04-10 Radar apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4727080A JPS56143974A (en) 1980-04-10 1980-04-10 Radar apparatus

Publications (2)

Publication Number Publication Date
JPS56143974A true JPS56143974A (en) 1981-11-10
JPH0137712B2 JPH0137712B2 (en) 1989-08-09

Family

ID=12770595

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4727080A Granted JPS56143974A (en) 1980-04-10 1980-04-10 Radar apparatus

Country Status (1)

Country Link
JP (1) JPS56143974A (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
JPH0137712B2 (en) 1989-08-09

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