JPS57131083A - Radar video display device - Google Patents

Radar video display device

Info

Publication number
JPS57131083A
JPS57131083A JP56016441A JP1644181A JPS57131083A JP S57131083 A JPS57131083 A JP S57131083A JP 56016441 A JP56016441 A JP 56016441A JP 1644181 A JP1644181 A JP 1644181A JP S57131083 A JPS57131083 A JP S57131083A
Authority
JP
Japan
Prior art keywords
data
memory
signals
address
stored
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
JP56016441A
Other languages
Japanese (ja)
Other versions
JPH0381115B2 (en
Inventor
Kaneyoshi Hasumi
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 JP56016441A priority Critical patent/JPS57131083A/en
Publication of JPS57131083A publication Critical patent/JPS57131083A/en
Publication of JPH0381115B2 publication Critical patent/JPH0381115B2/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
    • 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
    • G01S7/2923—Extracting wanted echo-signals based on data belonging to a number of consecutive radar periods

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 recognize very weak aircraft echoes readily, by comparing the data obtained at every scan with the data which is obtained by performing specified processing on the data stored in the corresponding address in a memory and writing the data having a higher level into the memory. CONSTITUTION:The trigger and azimuth signals from the radar are inputted to an address converter 1 where the signals are converted to address writing signals for the stroage memory 3. An AD converter 2 convertes the analog video signal in real time and the result is stored in the video storage memory 3 in the order of the range. A comparator 9 compares the data obtained at every scan with the data which is obtained by processing the data stored in the corresponding address of the memory 3 in trail control circuit 4, with a specified attenuation characteristic being added. The data having the higher level is written in the memory 3 as new data.
JP56016441A 1981-02-06 1981-02-06 Radar video display device Granted JPS57131083A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56016441A JPS57131083A (en) 1981-02-06 1981-02-06 Radar video display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56016441A JPS57131083A (en) 1981-02-06 1981-02-06 Radar video display device

Publications (2)

Publication Number Publication Date
JPS57131083A true JPS57131083A (en) 1982-08-13
JPH0381115B2 JPH0381115B2 (en) 1991-12-27

Family

ID=11916316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56016441A Granted JPS57131083A (en) 1981-02-06 1981-02-06 Radar video display device

Country Status (1)

Country Link
JP (1) JPS57131083A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61270682A (en) * 1985-05-25 1986-11-29 Japan Radio Co Ltd Wave display device of ship radar
JP2006266734A (en) * 2005-03-22 2006-10-05 Mitsubishi Electric Corp Radar image transmitting device and radar image receiving device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115967A (en) * 1980-02-18 1981-09-11 Nippon Abionikusu Kk Scan converter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56115967A (en) * 1980-02-18 1981-09-11 Nippon Abionikusu Kk Scan converter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61270682A (en) * 1985-05-25 1986-11-29 Japan Radio Co Ltd Wave display device of ship radar
JP2006266734A (en) * 2005-03-22 2006-10-05 Mitsubishi Electric Corp Radar image transmitting device and radar image receiving device

Also Published As

Publication number Publication date
JPH0381115B2 (en) 1991-12-27

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