Antenna array calibration using known sources (2) - consideration on reduction of number of data sets

摘要

Recently, researches for direction-of-arrival (DOA) estimation using antenna array have made great progress. Especially, it is desired for the estimation by superresolution techniques to apply to communication systems as well as sensings. However, implementation of perfect antenna array which often appears in formulation of superresolution techniques is impossible and must supplement it by calibration of antenna array before appling superresolution technique. In this report, we propose a calibration-parameter estimation method for antenna array that utilized wave sources whose DOAs are already known. The main improvement in this method is reduction of number of data sets for calibration.