Title:
RADIO COMMUNICATION SYSTEM AND RADIO RECEIVER
Document Type and Number:
Japanese Patent JP2823829
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To eliminate an undesired wave and to reduce an error rate of the receiver by synthesizing a direct wave and a 1st delay signal resulting from a received radio signal and providing an output of the synthesized wave as the reception signal.
SOLUTION: An adaptive control processor 9 of a receiver 30 samples a received signal at a sampling period Ts equal to the time length of a symbol string from a reference time being a time of a 2nd symbol in a 1st symbol rate of a training signal included in the desired wave of the received signal at first to recover a recovered training signal. Then the weight to each antenna element 100-i is calculated and outputted to a beam shaping device B1. Then each multiplier 2-i (i=1, 2,..., N) in the beam shaping device B1 multiplies a reception signal xi (t) with a complex weight wi and provides an output of the product signal to an adder 3 and the adder 3 adds N-sets of signals outputted from the multipliers 2-1-2-N to provide an output of a signal y(t).
More Like This:
Inventors:
Yoshiharu Doi
Takeo Ohgane
Eiichi Ogawa
Takeo Ohgane
Eiichi Ogawa
Application Number:
JP1031396A
Publication Date:
November 11, 1998
Filing Date:
January 24, 1996
Export Citation:
Assignee:
ATR Optical and Radio Communications Research Institute, Inc.
International Classes:
H01Q3/26; H01Q3/00; H04B1/10; H04B7/08; H04B7/26; H04L27/00; H04L27/18; (IPC1-7): H04B7/08; H01Q3/00; H04B1/10; H04B7/26; H04L27/00; H04L27/18
Domestic Patent References:
| JP936638A | ||||
| JP846533A |
Attorney, Agent or Firm:
Aoyama Ryo (2 outside people)