JPS5460587A - Radar receiving device - Google Patents

Radar receiving device

Info

Publication number
JPS5460587A
JPS5460587A JP12711377A JP12711377A JPS5460587A JP S5460587 A JPS5460587 A JP S5460587A JP 12711377 A JP12711377 A JP 12711377A JP 12711377 A JP12711377 A JP 12711377A JP S5460587 A JPS5460587 A JP S5460587A
Authority
JP
Japan
Prior art keywords
average
signal
average deviation
voltage
reception signal
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.)
Pending
Application number
JP12711377A
Other languages
Japanese (ja)
Inventor
Kenji Okubo
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon Electric Co Ltd
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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP12711377A priority Critical patent/JPS5460587A/en
Publication of JPS5460587A publication Critical patent/JPS5460587A/en
Pending 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
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/02—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S13/00
    • G01S7/28—Details of pulse systems
    • G01S7/285—Receivers
    • G01S7/292—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)

Abstract

PURPOSE:To suppress the harmful clatter contained in the video signal and to secure easy detection of the reception signal by using the average deviation of the reception signal. CONSTITUTION:The reception signal undergoes logarithm amplification 1; the average value of the signal is obtained for the output via tap-equipped delay line 2, adder 3 and attenuator 4; the difference valtage between the output of amplifier 1 and the average voltage is obtained at subtractor 5 to be supplied to tap-equipped delay line 6; the voltage showing the average deviation is generated through each delay output and via absolute value calculator 7, adder 8 and attenuator 9; and average deviation voltage is amplifed (10) to K-multiplication and then subtracted from the central value of line 6. Thus, the signal normalized by the average value is normalized again by the average deviation, and the probability of the misalarm caused by the harmful clatter component can be made constant.
JP12711377A 1977-10-21 1977-10-21 Radar receiving device Pending JPS5460587A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12711377A JPS5460587A (en) 1977-10-21 1977-10-21 Radar receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12711377A JPS5460587A (en) 1977-10-21 1977-10-21 Radar receiving device

Publications (1)

Publication Number Publication Date
JPS5460587A true JPS5460587A (en) 1979-05-16

Family

ID=14951920

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12711377A Pending JPS5460587A (en) 1977-10-21 1977-10-21 Radar receiving device

Country Status (1)

Country Link
JP (1) JPS5460587A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0298683A (en) * 1988-10-06 1990-04-11 Tech Res & Dev Inst Of Japan Def Agency Target detecting system for setting automatically erroneous detection probability
JPH04216484A (en) * 1990-12-14 1992-08-06 Tokimec Inc Clutter signal suppression device for radar
JPH05249227A (en) * 1990-12-14 1993-09-28 Tokimec Inc Clutter signal suppression device for radar

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0298683A (en) * 1988-10-06 1990-04-11 Tech Res & Dev Inst Of Japan Def Agency Target detecting system for setting automatically erroneous detection probability
JPH04216484A (en) * 1990-12-14 1992-08-06 Tokimec Inc Clutter signal suppression device for radar
JPH05249227A (en) * 1990-12-14 1993-09-28 Tokimec Inc Clutter signal suppression device for radar

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