METHOD AND DEVICE FOR CONTROLLING ADAPTIVE ARRAY ANTENNA

Japanese Patent JP3438513

B2

PROBLEM TO BE SOLVED: To improve transmission speed by placing priority of at least part of processing in the calculation processing that adaptively calculates a weight coefficient of a signal related to each antenna element to be lower than the priority of other calculation processing for which high-speed signal processing is a requirement so as to reduce the calculation amount.
SOLUTION: The priority of at least a part of processing in the calculation processing that adaptively calculates a weight coefficient of a signal related to each of antenna elements 30-1 to 30-m is placed lower than the priority of other calculation processing, for which high speed signal processing is a requirement. Then the calculation processing of a weight coefficient calculation circuit 32, consisting of a covariance matrix calculation section, an inverse matrix calculation section and a weight coefficient calculation section is conducted for a period CT5 which is longer than a sampling period TS, and the calculation processing by multipliers 33-1 to 33-m and an adder 34 is conducted for the sampling period TS. That is, since a plurality of processes whose output frequency of the calculation result differs are processed by a multi-task method, the calculation amount per the sampling period is reduced.

Yukihiro Kamiya
Shinichi Nomoto
Hideo Kobayashi

JP4287697A

August 18, 2003

February 13, 1997

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KDDI CORPORATION

H01Q3/26; H03H21/00; (IPC1-7): H01Q3/26

JP6196921A
JP370221A
JP862323A
JP5344013A

Keiichi Yamamoto

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