The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 08, 2020

Filed:

Apr. 18, 2016
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Ryuhei Takahashi, Tokyo, JP;

Toru Takahashi, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01S 13/28 (2006.01); G01S 13/58 (2006.01); G01S 13/42 (2006.01); G01S 7/295 (2006.01); G01S 7/288 (2006.01);
U.S. Cl.
CPC ...
G01S 13/282 (2013.01); G01S 7/295 (2013.01); G01S 13/42 (2013.01); G01S 13/582 (2013.01); G01S 2007/2883 (2013.01);
Abstract

Pulse compression units (-m) (m=1, . . . , M) obtain frequency spectra of received signals by performing Fourier transform on the received signals output from receiver devices (-m), calculate spectrum products of references for pulse compression, the references determined by beam directional angles indicating propagation directions of transmission pulses and carrier frequencies, and the frequency spectra, and perform inverse Fourier transform on the spectrum products. This enables reduction in the calculation scale by reducing the number of times of execution of Fourier transform and inverse Fourier transform when pulse compression is performed.


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