Патент США № | 7898460 |
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Автор(ы) | Nishimura и др. |
Дата выдачи | 01 марта 2011 г. |
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 .theta..sub.1 from the acquired receiving signals of the first sub-phase and calculates an azimuth sine value sin .theta..sub.2 from the receiving signals of the second sub-phase. Next, the radar apparatus calculates an actual azimuth .theta. through an averaging process of these azimuth sine values sin .theta..sub.1 and sin .theta..sub.2.
Авторы: | Tetsu Nishimura (Toyonaka, JP), Toru Ishii (Hirakata, JP) |
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Заявитель: | Murata Manufacturing Co., Ltd. (Kyoto-fu, JP) |
ID семейства патентов | 38997065 |
Номер заявки: | 12/365,365 |
Дата регистрации: | 04 февраля 2009 г. |
Application Number | Filing Date | Patent Number | Issue Date | ||
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PCT/JP2007/063715 | Jul., 2007 | ||||
Aug 04, 2006 [JP] | 2006-213448 | |||
Класс патентной классификации США: | 342/27; 342/118; 342/127; 342/128; 342/146; 342/147; 342/175; 342/195; 342/196; 342/28; 342/70; 342/73; 342/74; 342/82; 342/89 |
Класс международной патентной классификации (МПК): | G01S 7/35, G01S 13/93, G01S 13/536, G01S 7/02 |
Класс совместной патентной классификации: | G01S 3/48 (20130101); G01S 13/34 (20130101); G01S 13/42 (20130101); G01S 13/931 (20130101) |
Область поиска: | 342/27,28,70-72,104-118,127-133,146,147,175,192-197,155-158,165,173,174,73-103 701/300,301 180/167-169 |
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