发明名称 |
Path search circuit, radio receiver and radio transmitter, utilizing a directional beam |
摘要 |
A path search circuit according to the present invention has an orthogonal multi-beam forming section 4 for directional reception with a plurality of orthogonal multi-beams orthogonal one to another, correlation-operating sections 61 - 6M for correlation-operating outputs of the orthogonal multi-beam forming section 4 with a known signal, weight multiplying sections 81 - 8Nb for multiplying the output of the correlation-operating section 61 - 6M by a weight converted into a beam space, delay profile generating sections 91 - 9Nb for generating delay profiles from the output signals of the weight multiplying sections 81 - 8Nb, and a path detecting section 10 for detecting a reception timing and arrival direction of arrival path from the delay profile. This path search circuit can enhance the accuracy of path direction detection by the use of a directional reception signal, and further reduce the direction dependence of path timing detection accuracy. <IMAGE> |
申请公布号 |
EP1361678(B1) |
申请公布日期 |
2016.08.03 |
申请号 |
EP20030007867 |
申请日期 |
2003.04.07 |
申请人 |
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. |
发明人 |
KISHIGAMI, TAKAAKI;FUKAGAWA, TAKASHI;YUDA, YASUAKI;TAKAKUSAKI, KEIJI;MIYAMOTO, SHOJI |
分类号 |
H01Q3/26;H04B1/7113;H04B1/707;H04B1/7117;H04B7/08;H04B7/10;H04B7/26;H04W16/28;H04W88/08 |
主分类号 |
H01Q3/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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