In the third section , the simulation on music direction finding and the influence that is caused by snr , space between antennae , signal frequency and channel mismatch is analyzed . according to the single known - direction source calibration method , the channel mismatch is calibrated 第三部分介紹了music測向基本原理,詳細分析了信噪比、陣元間距、通道失配等因素對其測向結果的影響,并利用單信號有源校正方法,對通道失配進行了校正,提高了測向精度。