Patent ID: 7558350

Claim:
An adaptive antenna reception method wherein a signal processor is assigned to at least one incoming wave, and in said signal processor, signals that are received by a plurality of antennas are weighted by weights of each of said antennas that are determined by using a time average of a calculated value that is obtained by a prescribed computation from received signals of said plurality of antennas and then synthesized to further synthesize a plurality of incoming waves that are received in a plurality of signal processors to obtain a desired signal; said adaptive antenna reception method comprising steps of: a first step for detecting the arrival direction of an incoming wave that is received by signal processors from weights that are determined by each signal processor in which at least a prescribed time interval has been secured for an averaging time to find a time average; a second step for finding the reception quality of the signal of an incoming wave that is received by weighting and synthesizing by each of said signal processors in which at least said prescribed time interval has been secured for the averaging time; and a third step for selecting an initial beam direction in said signal processors that are to begin determination of weights using time averages, based on each arrival direction and the reception quality in each of said signal processors in which at least said prescribed time interval has been secured for the averaging time, the initial beam direction being selected from among a plurality of predetermined beam directions based on reception quality.