契比雪夫加权应用被动合成孔径处理算法研究

提出了将契比雪夫加权应用于被动合成孔径处理算法。被动合成孔径技术对小孔径 基阵沿直线运动接收到的信号进行合成处理，从而达到虚拟大孔径基阵方位分辨力效果。将 契比雪夫加权应用于线阵合成孔径前后波束图的指向性研究，对主瓣宽度变化予以合理解释 。理论分析结合仿真验证表明，被动合成孔径处理算法应用契比雪夫加权可以在给定的旁瓣 高 度要求下获得等旁瓣级，等旁瓣级下可提高对弱目标信号的检测分辨能力。

Study on application of passive synthetic aperture processing algorithm in Chebyshev weighting

Passive synthetic aperture processing algorithm application in Chebyshe v weighting is proposed. The technology of passive synthetically aperture is for syn thetically processing the received signal of small aperture array along the line ar motion, in order to achieve the orientation resolution effects of the virtual la rge aperture array. Based on the use of Chebyshew weighting for the linear array synthetic aperture directional beam pattern, the mainlobe width change is ju stified. Through theoretical analysis and simulation on passive synthetic apert ure processing algorithm application in Chebyshev weighting, the equivalent side lobe level in condition of fixed sidelobe height can be attained, and it is appa rent to improve the ability to distinguish the weak target signal under equivale nt sidelobe level.