JPS6154479A - Target tracking system - Google Patents

Target tracking system

Info

Publication number
JPS6154479A
JPS6154479A JP17630784A JP17630784A JPS6154479A JP S6154479 A JPS6154479 A JP S6154479A JP 17630784 A JP17630784 A JP 17630784A JP 17630784 A JP17630784 A JP 17630784A JP S6154479 A JPS6154479 A JP S6154479A
Authority
JP
Japan
Prior art keywords
passive
receiver
active
signal
switching
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
JP17630784A
Other languages
Japanese (ja)
Other versions
JPH045154B2 (en
Inventor
Moriyoshi Yamakawa
Osami Yoshizawa
Eiko Nakazato
Haruo Komuro
Original Assignee
Tech Res & Dev Inst Of Japan Def Agency
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 Tech Res & Dev Inst Of Japan Def Agency filed Critical Tech Res & Dev Inst Of Japan Def Agency
Priority to JP59176307A priority Critical patent/JPH045154B2/ja
Publication of JPS6154479A publication Critical patent/JPS6154479A/en
Publication of JPH045154B2 publication Critical patent/JPH045154B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S13/00Systems 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
    • G01S13/66Radar-tracking systems; Analogous systems

Abstract

PURPOSE:To extend the detection and acquisition range of a target by a passive system and improve target tracking performance at a short range and an extremely short range by performing active tracking operation and passive tracking operation on time-division basis. CONSTITUTION:This system is equipped with an antenna 1, radio wave duplexer 2, transmitter 3, receiver 5 which receives and detects a receive signal on active bases, and receiver 6 which receives and detects a receive signal on passive basis. Further, a timing generator 13 generates a signal for switching both receivers and an active/passing switch 4 performs switching operation according to the indication; and an active/passive angle error detector 14 detects an angle error signal from outputs of the active receiver 5 and passive receiver 6 and a reception system switching decision device 15 judges whether switching to the passive reception system is effective or not. The reception system switching decision device 15 compares the level of a preset reference signal So with that of the detection signal Sp of the passive receiver and makes a decision to perform passive system tracking, for example, when So<=Sp.
JP59176307A 1984-08-24 1984-08-24 Expired - Lifetime JPH045154B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59176307A JPH045154B2 (en) 1984-08-24 1984-08-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59176307A JPH045154B2 (en) 1984-08-24 1984-08-24

Publications (2)

Publication Number Publication Date
JPS6154479A true JPS6154479A (en) 1986-03-18
JPH045154B2 JPH045154B2 (en) 1992-01-30

Family

ID=16011295

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59176307A Expired - Lifetime JPH045154B2 (en) 1984-08-24 1984-08-24

Country Status (1)

Country Link
JP (1) JPH045154B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042985A (en) * 1990-04-19 1992-01-07 Daikin Ind Ltd Method and apparatus for detecting target
JP2010066100A (en) * 2008-09-10 2010-03-25 Toshiba Corp Radar device
WO2010100976A1 (en) * 2009-03-05 2010-09-10 株式会社日立国際電気 Multi-function radar device
JP2016109433A (en) * 2014-12-02 2016-06-20 三菱電機株式会社 Guidance device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131080A (en) * 1974-09-11 1976-03-16 Sankosha Co Ltd

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131080A (en) * 1974-09-11 1976-03-16 Sankosha Co Ltd

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH042985A (en) * 1990-04-19 1992-01-07 Daikin Ind Ltd Method and apparatus for detecting target
JP2010066100A (en) * 2008-09-10 2010-03-25 Toshiba Corp Radar device
WO2010100976A1 (en) * 2009-03-05 2010-09-10 株式会社日立国際電気 Multi-function radar device
JP2010204003A (en) * 2009-03-05 2010-09-16 Hitachi Kokusai Electric Inc Multi-function radar device
US8537049B2 (en) 2009-03-05 2013-09-17 Hitachi Kokusai Electric Inc. Multi-function radar device
JP2016109433A (en) * 2014-12-02 2016-06-20 三菱電機株式会社 Guidance device

Also Published As

Publication number Publication date
JPH045154B2 (en) 1992-01-30

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term