CAJ | 학술논문

为了匹配MIMO雷达系统给定的发射方向图,采用半正定规划(SDP)来优化发射信号的协方差矩阵.基于该协方差矩阵,利用循环算法(CA)和极小极大法,通过优化波形相位设计出了具有低空域和时域副瓣的恒模发射信号.此外,又提出了用凸规划设计空域失配滤波器和时域失配滤波器的方法,进一步降低了空域和时域副瓣.
위료필배MIMO뢰체계통급정적발사방향도,채용반정정규화(SDP)래우화발사신호적협방차구진.기우해협방차구진,이용순배산법(CA)화겁소겁대법,통과우화파형상위설계출료구유저공역화시역부판적항모발사신호.차외,우제출료용철규화설계공역실배려파기화시역실배려파기적방법,진일보강저료공역화시역부판.
A covariance matrix of transmit signal waveforms is optimized via semi-definite programming (SDP)for matching the desired transmit beampattern of an MIMO radar system.Based on the covariance matrix above and using the cyclic algorithm(CA)and the min-max method proposed,low space-time sidelobes are achieved by optimizing waveform phases of the transmit signal waveforms with constant modulus.Additionally,a convex programming method is proposed to design the space-time mismatched filters,and then the space-time sidelobes are furthermore reduced.