Method and apparatus for controlling array antenna

An apparatus for controlling an array antenna having a plurality of antenna elements for providing antenna output signals by receiving TDMA burst signals, comprising:

• means for estimating a DOA of incident signal based upon the antenna output signals;
• means for calculating weights with reference to the estimated DOA;
• means for multiplying the antenna output signals by the calculated weights, respectively;
• and
• means for summing the multiplied antenna output signals,
• wherein said estimating means includes a first means for calculating a phase difference between the output signals of two of the antenna elements during burst, a second means for calculating a phase difference between the output signals of two antenna elements during an interval of bursts, and a third means for calculating a difference between said calculated phase differences.

An apparatus for controlling an array antenna having a plurality of antenna elements for providing antenna output signals by receiving TDMA burst signals, comprising:

• means for estimating a DOA of incident signal based upon the antenna output signals;
• means for calculating weights with reference to the estimated DOA;
• means for multiplying the antenna output signals by the calculated weights, respectively;
• and
• means for summing the multiplied antenna output signals,
• wherein said estimating means includes means for calculating phase differences between the output signals of two of the antenna elements, means for calculating a spatial average of the calculated phase differences during burst, means for calculating a spatial average of the calculated phase differences during an interval of bursts, and means for calculating a difference between said calculated spatial averages of phase differences.