INCOMING WAVE PRESUMPTION DEVICE, INCOMING WAVE PRESUMPTION METHOD, AND WAVE SOURCE POSITION PRESUMPTION SYSTEM

摘要

PROBLEM TO BE SOLVED: To accurately presume the direction and strength of an incoming wave with a small calculation load. SOLUTION: A plurality of weight vectors are calculated by presuming a signal of a K-th element (K=1-M) of an array antenna by the use of signals of elements other than it, and a plurality of angle spectra are calculated from the respective weight vectors. By synthesizing the angle spectra calculated from a plurality of the weight vectors by an averaging process, the intensity of the spectra not in a real coming direction is decreased, and only the intensity of the spectrum in the real coming direction is kept high, so that the real incoming direction is presumed. COPYRIGHT: (C)2004,JPO&NCIPI