JPS55112581A - Ssr multi-mark discrimination unit - Google Patents

Ssr multi-mark discrimination unit

Info

Publication number
JPS55112581A
JPS55112581A JP2041279A JP2041279A JPS55112581A JP S55112581 A JPS55112581 A JP S55112581A JP 2041279 A JP2041279 A JP 2041279A JP 2041279 A JP2041279 A JP 2041279A JP S55112581 A JPS55112581 A JP S55112581A
Authority
JP
Japan
Prior art keywords
mark
ssr
memory part
azimuth
inputted
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
JP2041279A
Other languages
Japanese (ja)
Other versions
JPS6228431B2 (en
Inventor
Hideo Yamada
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 JP2041279A priority Critical patent/JPS55112581A/en
Publication of JPS55112581A publication Critical patent/JPS55112581A/en
Publication of JPS6228431B2 publication Critical patent/JPS6228431B2/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
    • 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
    • G01S13/74—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems
    • G01S13/76—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted
    • G01S13/78—Systems using reradiation of radio waves, e.g. secondary radar systems; Analogous systems wherein pulse-type signals are transmitted discriminating between different kinds of targets, e.g. IFF-radar, i.e. identification of friend or foe
    • G01S13/781—Secondary Surveillance Radar [SSR] in general

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 make it possible to detect automatically signals under a near multi- mark erroneous detection state and separate and discriminate and decode superposed multi-marks, by analyzing digitized beacon codes. CONSTITUTION:The beacon code of data from secondary supervisory radar (SSR) is inputted to SSR input auxiliary memory part 1A, and this data is inputted to SSR input memory part 1B. Next, the digitized beacon code is inputted to SSR input auxiliary memory part 1A by sweep, and beacon codes of both are compared with each other by comparator 2. When they agree with each other, the leading edge of one mark is detected by edge detection part 4, and the azimuth at this time is stored in azimuth counter memory part 7. When the beacon code is changed, the leading edge of another mark and the trailing edge of one mark and another mark are detected, and respective azimuth are stored in azimuth counter memory part 7. The output of operation circuit part 6 is outputted to automatic following unit III.
JP2041279A 1979-02-22 1979-02-22 Ssr multi-mark discrimination unit Granted JPS55112581A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2041279A JPS55112581A (en) 1979-02-22 1979-02-22 Ssr multi-mark discrimination unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2041279A JPS55112581A (en) 1979-02-22 1979-02-22 Ssr multi-mark discrimination unit

Publications (2)

Publication Number Publication Date
JPS55112581A true JPS55112581A (en) 1980-08-30
JPS6228431B2 JPS6228431B2 (en) 1987-06-19

Family

ID=12026316

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2041279A Granted JPS55112581A (en) 1979-02-22 1979-02-22 Ssr multi-mark discrimination unit

Country Status (1)

Country Link
JP (1) JPS55112581A (en)

Also Published As

Publication number Publication date
JPS6228431B2 (en) 1987-06-19

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