JPS56122969A - Signal processing system of scanning sonar or the like - Google Patents

Signal processing system of scanning sonar or the like

Info

Publication number
JPS56122969A
JPS56122969A JP2589480A JP2589480A JPS56122969A JP S56122969 A JPS56122969 A JP S56122969A JP 2589480 A JP2589480 A JP 2589480A JP 2589480 A JP2589480 A JP 2589480A JP S56122969 A JPS56122969 A JP S56122969A
Authority
JP
Japan
Prior art keywords
multiplier
input terminal
operational amplifier
terminal
input
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
JP2589480A
Other languages
Japanese (ja)
Inventor
Ginzaburo Kitagaki
Yoshinori Fujiwara
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.)
Furuno Electric Co Ltd
Original Assignee
Furuno 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 Furuno Electric Co Ltd filed Critical Furuno Electric Co Ltd
Priority to JP2589480A priority Critical patent/JPS56122969A/en
Publication of JPS56122969A publication Critical patent/JPS56122969A/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
    • G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
    • G01S7/56—Display arrangements
    • G01S7/62—Cathode-ray tube displays
    • G01S7/6218—Cathode-ray tube displays providing two-dimensional coordinated display of distance and direction
    • G01S7/6227—Plan-position indicators, i.e. P.P.I.

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)

Abstract

PURPOSE:To obtain a picture subjected to a uniform processing even for spiral scanning, by reducing the time constant of an integrating circuit or a differentiating circuit for waveform shaping according to the elapse of the deflection display time. CONSTITUTION:Input terminal 1 to which the reflection wave signal is applied is connected to one input terminal 2a of multiplier 2 through input resistance R1. The other input terminal 2b of multiplier 2 is connected to terminal 3 to which the saw tooth wave of the deflection signal for scanning is given. The multiplication output of multiplier 2 is given to operational amplifier 4 through input resistance R2. A Miller integration circuit is constituted with operational amplifier 4 and capacitor C. Feedback resistance R3 is connected between output terminal 5 of operational amplifier 4 and input terminal 2a of multiplier 2.
JP2589480A 1980-02-29 1980-02-29 Signal processing system of scanning sonar or the like Pending JPS56122969A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2589480A JPS56122969A (en) 1980-02-29 1980-02-29 Signal processing system of scanning sonar or the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2589480A JPS56122969A (en) 1980-02-29 1980-02-29 Signal processing system of scanning sonar or the like

Publications (1)

Publication Number Publication Date
JPS56122969A true JPS56122969A (en) 1981-09-26

Family

ID=12178491

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2589480A Pending JPS56122969A (en) 1980-02-29 1980-02-29 Signal processing system of scanning sonar or the like

Country Status (1)

Country Link
JP (1) JPS56122969A (en)

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