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. 28, 2023

Filed:

Aug. 22, 2018
Applicant:

Mitsubishi Electric Corporation, Chiyoda-ku, JP;

Inventors:

Masanobu Horimoto, Chiyoda-ku, JP;

Fumiyoshi Murase, Chiyoda-ku, JP;

Makoto Yamaguchi, Chiyoda-ku, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 5/02 (2010.01); G01S 3/48 (2006.01); H01Q 3/08 (2006.01); H01Q 25/02 (2006.01); G01S 3/72 (2006.01); G01S 3/38 (2006.01); G01S 3/06 (2006.01);
U.S. Cl.
CPC ...
G01S 3/48 (2013.01); H01Q 3/08 (2013.01); G01S 3/06 (2013.01); G01S 3/38 (2013.01); G01S 3/72 (2013.01); H01Q 25/02 (2013.01);
Abstract

The present disclosure obtains a correction value that corrects measurement angle error signals more accurately than conventional methods even in a case where a radio wave signal-to-noise ratio is low, and thus tracks a communication counterpart more accurately than the conventional methods. The present disclosure includes a program controllerthat generates a command value of an orientation direction of an antennaand outputs the generated command value to an antenna drive controller, the command value being changed in accordance with a predetermined change scenario; a correction value calculatorthat calculates a phase correction value γ, based on at least three pieces of error measurement dataincluding (i) an arrival direction error obtained from a sum signal and a difference signal of reception signals, the arrival direction error representing a difference between the orientation direction and an arrival direction being a direction from which the radio waves come and arrive and (ii) an orientation direction actual measurement value being an actual measurement value of the orientation direction when the arrival direction error is obtained, the phase correction value γ being an angle by which the arrival direction error is rotated; and a tracking controllerthat outputs, to the antenna drive controller, as the command value, a value obtained by adding the arrival direction error corrected based on the phase correction value γ to the orientation direction actual measurement value.


Find Patent Forward Citations

Loading…