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:
Feb. 11, 2014
Filed:
Oct. 18, 2011
Junji Kanamoto, Yokohama, JP;
Junji Kanamoto, Yokohama, JP;
Honda elesys Co., Ltd., Yokohama, JP;
Abstract
An electronic scanning radar apparatus in accordance with an embodiment of the present invention, a frequency resolving unit resolves beat signals into beat frequencies having a predetermined frequency bandwidth and calculates complex data based on the resolved beat signals for each beat frequency. An azimuth calculating unit estimates a number of received waves based on eigenvalues of a matrix being part of a primary normal equation having complex data as elements calculated from the beat signals, creates coefficients calculated as a solution of a secondary normal equation of a signal subspace created based on eigenvalues and eigenvectors corresponding to the number of the estimated waves, and calculates a DOA of a received wave based on the created coefficients.