发明名称 |
RADIO COMMUNICATION SYSTEM, ITS METHOD, AND TRANSMITTER AND RECEIVER TO BE USED FOR THE SYSTEM |
摘要 |
PROBLEM TO BE SOLVED: To estimate the characteristics of a propagation path by high time resolution without giving large non-linear distortion to a pilot signal in a power amplifier at radio communication. SOLUTION: A pilot signal synchronizing circuit 15 synchronizes the pilot signals of all sub-carriers extracted by a pilot signal extraction circuit 14. A pilot signal resynthesizing circuit 16 sets up the phases of the sub-carriers of the synchronized pilot signals to the same phase on the center of a pilot signal section to synthesize the pilot signals. A peak amplitude detection circuit 17 detects a peak amplitude value from the synthesized pilot signal. A propagation path characteristic calculation circuit 18 calculates a parameter estimation value of the propagation path by using the detected peak amplitude value and estimates the characteristics of the propagation path by calculating a propagation path parameter minimizing a square error between a copy of a pilot signal prepared from the estimation value and the pilot signal. |
申请公布号 |
JP2003087210(A) |
申请公布日期 |
2003.03.20 |
申请号 |
JP20010270199 |
申请日期 |
2001.09.06 |
申请人 |
KYUSHU UNIV |
发明人 |
AKAIWA YOSHIHIKO;MUTA OSAMU |
分类号 |
H04L27/01;H04B3/10;H04J1/00 |
主分类号 |
H04L27/01 |
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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