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.
Patent No.:
Date of Patent:
Dec. 18, 2018
Filed:
Oct. 07, 2015
Mitsubishi Electric Corporation, Tokyo, JP;
Daisuke Shimbo, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A receiver apparatusestimates a plurality of first electric-power delay profiles from a plurality of digital signals based on signals received via an array antenna; generates a synthesized electric-power delay profile q(m, l) by synthesizing these; generates an array process signal y(k) from the plurality of digital signals; estimates a second electric-power delay profile from the array process signal; generates a difference electric-power delay profile d(m, l) by subtracting the second electric-power delay profile from the synthesized electric-power delay profile; and creates a two-dimensional map indicating a relationship between delay times and arrival angles of incoming waves, on the basis of the difference electric-power delay profile and a direction of a null point. The receiver apparatuschanges the direction of the null point and repeats the above process, and estimates an arrival angle θof a direct wave on the basis of the two-dimensional map.