CAJ | 학술논문

为获取不同极化通道的微多普勒元素，建立了双通道极化合成孔径雷达微动信号获取模型，详细推导了采用相位中心偏置天线( DPCA)技术剔除地杂波后的极化微多普勒参数化表述。在此基础上，为充分融合各极化通道信息，提出了一种基于Pauli基展开的联合极化微多普勒矢量提取方法，据此可显著增强低信噪比下的微多普勒特征。仿真数据验证了该方法的有效性。
위획취불동겁화통도적미다보륵원소，건립료쌍통도겁화합성공경뢰체미동신호획취모형，상세추도료채용상위중심편치천선( DPCA)기술척제지잡파후적겁화미다보륵삼수화표술。재차기출상，위충분융합각겁화통도신식，제출료일충기우Pauli기전개적연합겁화미다보륵시량제취방법，거차가현저증강저신조비하적미다보륵특정。방진수거험증료해방법적유효성。
In order to obtain the polarimetric micro-Doppler ( PolmD) elements from different channels, the signal acquisition geometry of dual-channel polarimetric synthetic aperture radar ( PolSAR) is estab-lished, and the PolmD mathematical expression with clutter suppressed by displaced phase center antenna ( DPCA) is deduced detailedly. And then for better syncretizing the whole polarimetric information, a method of joint PolmD vector extraction based on Pauli-basis expansion is presented, which can enhance the PolmD features markedly under the condition of low signal noise ratio. Simulation results verify the a-vailability of the proposed method.