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:
Feb. 06, 2024

Filed:

Jun. 14, 2019
Applicant:

Mitsubishi Electric Corporation, Tokyo, JP;

Inventors:

Hiroshi Sakamaki, Tokyo, JP;

Ikuya Kakimoto, Tokyo, JP;

Tomoya Matsuda, Tokyo, JP;

Takamichi Nakamizo, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/58 (2006.01); G01S 7/292 (2006.01); G01S 7/41 (2006.01); G01S 13/534 (2006.01); G01S 13/95 (2006.01);
U.S. Cl.
CPC ...
G01S 13/581 (2013.01); G01S 7/292 (2013.01); G01S 7/41 (2013.01); G01S 13/534 (2013.01); G01S 13/95 (2013.01);
Abstract

A signal processing apparatus that performs signal processing on a Doppler spectrum derived from a reception signal of a reflected wave of pulsed undulation repeatedly transmitted into a space removes a topographic echo spectrum from the Doppler spectrum and extracts a plurality of candidate points of a target echo spectrum from the Doppler spectrum from which the topographic echo spectrum has been removed. Furthermore, the signal processing apparatus determines positional relation between the candidate points and a plurality of removed points of the topographic echo spectrum removed from the Doppler spectrum and extracts as an interpolation point, a point where the target echo spectrum is missing by removal of the topographic echo spectrum based on positional relation between the candidate points and the removed points in a direction of a frequency axis.


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