Title:
パスサーチ回路、無線受信装置及び無線送信装置
Document Type and Number:
Japanese Patent JP4086574
Kind Code:
B2
Abstract:
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.
More Like This:
| WO/2024/050198 | BASE STATION ANTENNA |
| WO/2015/154811 | A WIRELESS COMMUNICATION SYSTEM NODE ARRANGED FOR DETERMINING POINTING DEVIATION |
Inventors:
Takaaki Kishigami
Takashi Fukagawa
Yasuaki Yuda
Keiji Takagusa
Shoji Miyamoto
Takashi Fukagawa
Yasuaki Yuda
Keiji Takagusa
Shoji Miyamoto
Application Number:
JP2002217875A
Publication Date:
May 14, 2008
Filing Date:
July 26, 2002
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H01Q3/26; H04B7/08; H04B1/707; H04B1/7113; H04B1/7117; H04B7/10; H04B7/26; H04W16/28; H04W88/08
Domestic Patent References:
| JP2001345747A | ||||
| JP2000307489A | ||||
| JP2002268652A | ||||
| JP2001036451A |
Foreign References:
| WO2002052677A1 |
Attorney, Agent or Firm:
Shohei Oguri
Toshimitsu Ichikawa
Kimihide Hashimoto
Toshimitsu Ichikawa
Kimihide Hashimoto