JPS5748674A - Radio receiver - Google Patents

Radio receiver

Info

Publication number
JPS5748674A
JPS5748674A JP55124310A JP12431080A JPS5748674A JP S5748674 A JPS5748674 A JP S5748674A JP 55124310 A JP55124310 A JP 55124310A JP 12431080 A JP12431080 A JP 12431080A JP S5748674 A JPS5748674 A JP S5748674A
Authority
JP
Japan
Prior art keywords
target
amplifier
intermediate frequency
wave signal
reflection wave
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
JP55124310A
Other languages
Japanese (ja)
Inventor
Masumi Kikuta
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 JP55124310A priority Critical patent/JPS5748674A/en
Publication of JPS5748674A publication Critical patent/JPS5748674A/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
    • 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

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 detect the reflection wave signal from a target quickly with good accuracy by using a wide band intermediate frequency amplifier when searching a target reflection wave signal and using an intermediate frequency amplifier of a narrow band after the target is detected. CONSTITUTION:Before the first input signal is applied, a target detecting circuit 5 operates in such a way that an intermediate frequency amplifier 6 of a wide band is connected. When the reflection wave signal from the target is detected by the circuit 5, a switch 4 is operated and an intermediate frequency amplifier 7 of a narrow band is connected. The output of the amplifier 7 is supplied to a frequency discriminator 9, and the frequency of the output of a mixer 1 is so controlled by a voltage control oscillator 2 as to conform to the central frequency of the amplifier 7.
JP55124310A 1980-09-08 1980-09-08 Radio receiver Pending JPS5748674A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55124310A JPS5748674A (en) 1980-09-08 1980-09-08 Radio receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55124310A JPS5748674A (en) 1980-09-08 1980-09-08 Radio receiver

Publications (1)

Publication Number Publication Date
JPS5748674A true JPS5748674A (en) 1982-03-20

Family

ID=14882159

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55124310A Pending JPS5748674A (en) 1980-09-08 1980-09-08 Radio receiver

Country Status (1)

Country Link
JP (1) JPS5748674A (en)

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