JPS57153284A - Acquiring device for moving object - Google Patents

Acquiring device for moving object

Info

Publication number
JPS57153284A
JPS57153284A JP3845481A JP3845481A JPS57153284A JP S57153284 A JPS57153284 A JP S57153284A JP 3845481 A JP3845481 A JP 3845481A JP 3845481 A JP3845481 A JP 3845481A JP S57153284 A JPS57153284 A JP S57153284A
Authority
JP
Japan
Prior art keywords
moving objects
areas
sea
acquisition
unit time
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
JP3845481A
Other languages
Japanese (ja)
Inventor
Iichiro Yamamoto
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 JP3845481A priority Critical patent/JPS57153284A/en
Publication of JPS57153284A publication Critical patent/JPS57153284A/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
    • G01S13/72—Radar-tracking systems; Analogous systems for two-dimensional tracking, e.g. combination of angle and range tracking, track-while-scan radar

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 distinguish a sea area of a dense ship traffic from other sea areas, by varying an acquisition tracking area in accordance with the number of moving objects acquired in a predetermined unit time. CONSTITUTION:Position coordinates of moving objects which are obtained during one transmission pulse transmitted from a radar 1 are sent to a target counter circuit 3. The target counter circuit 3 sends indication signals for generating automatic acquisition areas of respective moving objects to a gate generating circuit 4 in accordance with the number of moving objects obtained during one scanning. Acquisition tracking areas are narrowed when the number of moving objects acquired in a unit time is large, and acquisition tracking areas are extended when this number is small. Thus, a processing corresponding to conditions of peripheral sea areas is possible.
JP3845481A 1981-03-17 1981-03-17 Acquiring device for moving object Pending JPS57153284A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3845481A JPS57153284A (en) 1981-03-17 1981-03-17 Acquiring device for moving object

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3845481A JPS57153284A (en) 1981-03-17 1981-03-17 Acquiring device for moving object

Publications (1)

Publication Number Publication Date
JPS57153284A true JPS57153284A (en) 1982-09-21

Family

ID=12525714

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3845481A Pending JPS57153284A (en) 1981-03-17 1981-03-17 Acquiring device for moving object

Country Status (1)

Country Link
JP (1) JPS57153284A (en)

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