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:
Mar. 01, 2011
Filed:
Feb. 04, 2009
Tetsu Nishimura, Toyonaka, JP;
Toru Ishii, Hirakata, JP;
Tetsu Nishimura, Toyonaka, JP;
Toru Ishii, Hirakata, JP;
Murata Manufacturing Co., Ltd., Kyoto-fu, JP;
Abstract
A radar apparatus includes a transmitting antenna and a receiving antenna that has a plurality of antenna elements, and switches the plurality of antenna elements in synchronization with a modulation period to acquire receiving signals. At this time, the antenna elements are switched in accordance with a combination of a first sub-phase and a second sub-phase in which the antenna elements are sequentially switched in opposite directions to thereby acquire the receiving signals. The radar apparatus calculates an azimuth sine value sin θfrom the acquired receiving signals of the first sub-phase and calculates an azimuth sine value sin θfrom the receiving signals of the second sub-phase. Next, the radar apparatus calculates an actual azimuth θ through an averaging process of these azimuth sine values sin θand sin θ.