JPS54103690A - Radar receiving signal processor - Google Patents

Radar receiving signal processor

Info

Publication number
JPS54103690A
JPS54103690A JP1001578A JP1001578A JPS54103690A JP S54103690 A JPS54103690 A JP S54103690A JP 1001578 A JP1001578 A JP 1001578A JP 1001578 A JP1001578 A JP 1001578A JP S54103690 A JPS54103690 A JP S54103690A
Authority
JP
Japan
Prior art keywords
signals
clutter
moving target
target
correlation functions
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
JP1001578A
Other languages
Japanese (ja)
Other versions
JPS6349193B2 (en
Inventor
Hiroshi Miyauchi
Masuteru Sunayama
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP1001578A priority Critical patent/JPS54103690A/en
Publication of JPS54103690A publication Critical patent/JPS54103690A/en
Publication of JPS6349193B2 publication Critical patent/JPS6349193B2/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
    • G01S13/02—Systems using reflection of radio waves, e.g. primary radar systems; Analogous systems
    • G01S13/50—Systems of measurement based on relative movement of target
    • G01S13/52—Discriminating between fixed and moving objects or between objects moving at different speeds
    • G01S13/522—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves
    • G01S13/524—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi
    • G01S13/53—Discriminating between fixed and moving objects or between objects moving at different speeds using transmissions of interrupted pulse modulated waves based upon the phase or frequency shift resulting from movement of objects, with reference to the transmitted signals, e.g. coherent MTi performing filtering on a single spectral line and associated with one or more range gates with a phase detector or a frequency mixer to extract the Doppler information, e.g. pulse Doppler radar

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Radar Systems Or Details Thereof (AREA)

Abstract

PURPOSE:To enable the true moving target to be detected by making use of the differences in the properties of power spectra obtainable from clutter signals and reflected waves from the moving target. CONSTITUTION:The reflected signals from the target are branched 9 and the complex signals of in-phase components and orthogonal components are formed with phase detectors 10, 11 and phase shift circuit 12. These outputs are respectively A/D converted 13, 14, and are further supplied to memory circuits 15, 16. Further, they are operated of the correlations between the signals themselves of the same distance and of slightly varying phases in an arithmetic circuit 17. Here, the correlation functions of clutter become gauss curves and since the Doppler signals of the moving target are of cosine function characteristics, the auto-correlation functions of the clutter having beforehand been operated in a clutter correlation generator 19 are substraced 18, whereby the correlation functions of only the target signals may be obtained. Fourier transformation 22 of these enables the true moving target to be accurately detected.
JP1001578A 1978-02-01 1978-02-01 Radar receiving signal processor Granted JPS54103690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1001578A JPS54103690A (en) 1978-02-01 1978-02-01 Radar receiving signal processor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1001578A JPS54103690A (en) 1978-02-01 1978-02-01 Radar receiving signal processor

Publications (2)

Publication Number Publication Date
JPS54103690A true JPS54103690A (en) 1979-08-15
JPS6349193B2 JPS6349193B2 (en) 1988-10-03

Family

ID=11738558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1001578A Granted JPS54103690A (en) 1978-02-01 1978-02-01 Radar receiving signal processor

Country Status (1)

Country Link
JP (1) JPS54103690A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524358A (en) * 1981-03-09 1985-06-18 Hollandse Signaalapparaten B.V. Pulse radar apparatus
JP2014142182A (en) * 2013-01-22 2014-08-07 Mitsubishi Electric Corp Radar device and radar signal reception method
RU174360U1 (en) * 2017-04-10 2017-10-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" PASSIVE INTERFERENCE COMPUTING DEVICE
RU2646330C1 (en) * 2017-01-24 2018-03-02 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Computer for rejective interference filtration
RU184344U1 (en) * 2018-05-07 2018-10-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" PASSIVE INTERFERENCE COMPUTER
RU185009U1 (en) * 2018-05-07 2018-11-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" LIABILITY COMPUTER-REDUCER

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0522764Y2 (en) * 1988-12-29 1993-06-11
RU2628907C1 (en) * 2016-10-13 2017-08-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Computer for interference compensation
RU2634191C1 (en) * 2016-11-21 2017-10-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Interference rejection counter
RU2634190C1 (en) * 2016-11-21 2017-10-24 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Interference rejecting counter

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129193A (en) * 1975-04-03 1976-11-10 Nec Corp Anticlutter radar device
US4035799A (en) * 1975-11-04 1977-07-12 The United States Of America As Represented By The Secretary Of The Navy Digital mean clutter doppler compensation system
JPS52117594A (en) * 1976-03-29 1977-10-03 Nec Corp Moving object display radar unit

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51129193A (en) * 1975-04-03 1976-11-10 Nec Corp Anticlutter radar device
US4035799A (en) * 1975-11-04 1977-07-12 The United States Of America As Represented By The Secretary Of The Navy Digital mean clutter doppler compensation system
JPS52117594A (en) * 1976-03-29 1977-10-03 Nec Corp Moving object display radar unit

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4524358A (en) * 1981-03-09 1985-06-18 Hollandse Signaalapparaten B.V. Pulse radar apparatus
JP2014142182A (en) * 2013-01-22 2014-08-07 Mitsubishi Electric Corp Radar device and radar signal reception method
RU2646330C1 (en) * 2017-01-24 2018-03-02 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" Computer for rejective interference filtration
RU174360U1 (en) * 2017-04-10 2017-10-11 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" PASSIVE INTERFERENCE COMPUTING DEVICE
RU184344U1 (en) * 2018-05-07 2018-10-22 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" PASSIVE INTERFERENCE COMPUTER
RU185009U1 (en) * 2018-05-07 2018-11-16 Федеральное государственное бюджетное образовательное учреждение высшего образования "Рязанский государственный радиотехнический университет" LIABILITY COMPUTER-REDUCER

Also Published As

Publication number Publication date
JPS6349193B2 (en) 1988-10-03

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