【摘要】 介绍了频率捷变在相控阵雷达目标多径DOA估计中的应用,并采用修正的MUSIC算法(MMU-SIC)以提高多径信号DOA估计性能。频率捷变不仅可以去掉直射信号与反射信号的相关成分,而且可以消除严重的信号对消现象。而修正的MUSIC算法则可以将相关信号源的相关性大大降低,从而改善了传统MUSIC算法对相关信号源的DOA估计性能。更多还原

【Abstract】 A target multipath DOA estimation algorithm based on frequency agility for phased array radar is introduced.The modified MUSIC(MMUSIC) algorithm is applied to estimate the DOA’s of the multipaths so as to increase the DOA estimation accuracy of correlated signal sources.The frequency agility can not only decorrelate the sources,but also eliminate the severe signal cancellation.The MMUSIC algorithm can decorrelate the signal sources greatly,thus the performance of DOA estimation by traditional MUSIC algorithm is improved.更多还原