JPS5714766A - Transmission frequency shift system of radar - Google Patents

Transmission frequency shift system of radar

Info

Publication number
JPS5714766A
JPS5714766A JP8946480A JP8946480A JPS5714766A JP S5714766 A JPS5714766 A JP S5714766A JP 8946480 A JP8946480 A JP 8946480A JP 8946480 A JP8946480 A JP 8946480A JP S5714766 A JPS5714766 A JP S5714766A
Authority
JP
Japan
Prior art keywords
signal
frequency
transmission
local
reflected
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
JP8946480A
Other languages
Japanese (ja)
Inventor
Natsuki 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 JP8946480A priority Critical patent/JPS5714766A/en
Publication of JPS5714766A publication Critical patent/JPS5714766A/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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/06—Systems determining position data of a target
    • G01S13/08—Systems for measuring distance only
    • G01S13/10—Systems for measuring distance only using transmission of interrupted, pulse modulated waves
    • G01S13/26—Systems for measuring distance only using transmission of interrupted, pulse modulated waves wherein the transmitted pulses use a frequency- or phase-modulated carrier wave

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 mutual interference of signal and to simplify the circuit construction by generating transmission frequency of 3 frequencies equally with the base signal of a frequency by selectively receiving the reflected signal of upper or lower band of transmission signal. CONSTITUTION:A reference signal generator 1 generates transmission reference signal with IF of the receiver higher than the reference signal f10 and a phase modulator 4 reverses and modulates the phase of 50% duty with modulation frequency of FM. Then, the signal is transmitted through a transmitter 5. Then, 2 kinds of local signals are formed by mixing fIO and fM in a local signal generator 8 and the local signal and reflected signal are frequency-converted 10 by the command of a signal treatment equipment 9. Reflected signal of upper or lower band of transmission signal is selected and received.
JP8946480A 1980-07-01 1980-07-01 Transmission frequency shift system of radar Pending JPS5714766A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8946480A JPS5714766A (en) 1980-07-01 1980-07-01 Transmission frequency shift system of radar

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8946480A JPS5714766A (en) 1980-07-01 1980-07-01 Transmission frequency shift system of radar

Publications (1)

Publication Number Publication Date
JPS5714766A true JPS5714766A (en) 1982-01-26

Family

ID=13971423

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8946480A Pending JPS5714766A (en) 1980-07-01 1980-07-01 Transmission frequency shift system of radar

Country Status (1)

Country Link
JP (1) JPS5714766A (en)

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