JPH04301584A - Pulse doppler radar equipment - Google Patents

Pulse doppler radar equipment

Info

Publication number
JPH04301584A
JPH04301584A JP3066485A JP6648591A JPH04301584A JP H04301584 A JPH04301584 A JP H04301584A JP 3066485 A JP3066485 A JP 3066485A JP 6648591 A JP6648591 A JP 6648591A JP H04301584 A JPH04301584 A JP H04301584A
Authority
JP
Japan
Prior art keywords
target
phase
signal
partial
ffts
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
JP3066485A
Other versions
JP2737434B2 (en
Inventor
Takahiko Fujisaka
Shigeo Inatsune
Yoshimasa Ohashi
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3066485A priority Critical patent/JP2737434B2/en
Publication of JPH04301584A publication Critical patent/JPH04301584A/en
Application granted granted Critical
Publication of JP2737434B2 publication Critical patent/JP2737434B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Abstract

PURPOSE: To obtain a pulse Doppler radar equipment enabling attainment of an effect of improvement in a signal-to-noise power ratio(SNR) by coherent integration even when a target being observed is in accelerated movement in the radial direction.
CONSTITUTION: A reception signal from a target of observation is converted into a digital complex video signal and stored for each range bin number and pulse hit number in a two-dimensional memory 14. Data trains obtained by dividing data of the two-dimensional memory are subjected to fast Fourier transform in the direction of pulse hit by FFTs 22 respectively. An output signal of each FFT having a phase gradient which is most approximate to the phase gradient of a partial straight line obtained by linear approximation in each partial section of a phase curve of the reception signal from the target of observation being in the accelerated movement supposed beforehand is selected from separate output signals of the FFTs, while such phase compensation as enabling connection of partial straight lines having different phase gradients at a joint of the partial sections is called out of a reference memory, and each of them is subjected to computation of the product and the sum so as to execute coherent integration.
COPYRIGHT: (C)1992,JPO&Japio
JP3066485A 1991-03-29 1991-03-29 Pulse Doppler - Les - da apparatus Expired - Lifetime JP2737434B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3066485A JP2737434B2 (en) 1991-03-29 1991-03-29 Pulse Doppler - Les - da apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3066485A JP2737434B2 (en) 1991-03-29 1991-03-29 Pulse Doppler - Les - da apparatus

Publications (2)

Publication Number Publication Date
JPH04301584A true JPH04301584A (en) 1992-10-26
JP2737434B2 JP2737434B2 (en) 1998-04-08

Family

ID=13317141

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3066485A Expired - Lifetime JP2737434B2 (en) 1991-03-29 1991-03-29 Pulse Doppler - Les - da apparatus

Country Status (1)

Country Link
JP (1) JP2737434B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006258786A (en) * 2005-02-15 2006-09-28 Mitsubishi Electric Corp Radar installation
JP2008275388A (en) * 2007-04-26 2008-11-13 Mitsubishi Electric Corp Image radar apparatus
JP2010527278A (en) * 2007-05-16 2010-08-12 ベラソン インコーポレイテッドVerathon Inc. System and method for ultrasonic harmonic imaging
JP2015203681A (en) * 2014-04-16 2015-11-16 三菱電機株式会社 Radar device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006258786A (en) * 2005-02-15 2006-09-28 Mitsubishi Electric Corp Radar installation
JP2008275388A (en) * 2007-04-26 2008-11-13 Mitsubishi Electric Corp Image radar apparatus
JP2010527278A (en) * 2007-05-16 2010-08-12 ベラソン インコーポレイテッドVerathon Inc. System and method for ultrasonic harmonic imaging
JP2015203681A (en) * 2014-04-16 2015-11-16 三菱電機株式会社 Radar device

Also Published As

Publication number Publication date
JP2737434B2 (en) 1998-04-08

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