CONTROL METHOD OF ADAPTIVE ARRAY ANTENNA SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a technique of attaining a high SINR for a desired wave by suppressing the effect of an interference wave. SOLUTION: An adaptive array antenna system 100 disclosed herein includes: m0pieces of directivity variable antenna elements AN-m (m is a natural number of m0or below) whose directivity is controlled; wireless receivers R-m; an adaptive control controller C1; weighting units (multipliers) W-m; and a signal composite unit (adder) p1. Each of the wireless receivers R-m comprises: a low distortion amplifier (LNA); a down-converter (D/C) (for outputting two signals of I and Q phases); and an A/D converter (A/D). The adaptive array antenna system 100 shown in Fig. 1 uses the adaptive control controller C1 to control the directivity of each antenna element and weight factors multiplied by the multipliers thereby attaining the high SINR for the desired wave. COPYRIGHT: (C)2007,JPO&INPIT