利用后向散射回波相对相位计算角闪烁的条件

在测量点散射单元为球体的两点目标的后向散射时发现，它的后向角闪烁可以通过直接求后向散射回波相对相位测量数据关于入射角的导数而得到。为了揭示这一实验现象所隐含的仙在规律，本文提出了一个具有典型意义的各赂异性矢量Ｎ点目标模型用来进行相关的研究。理论结果表明，在一定的条件下，角闪烁的后向值与后向散射回波相对相位对入射角的导数之间存在的等效性。

On the Conditions for Obtaining Angular Glint by Backscattering Echo Relative Phase

From the backscattering measurements of a two-point target consisting of two spheres,it is found out that the backward angular glint can be obtained by evaluating the derivative of the measured data of backscattering echo relative phase vs incident angle.A representative vector model of a N-point target consisting of N anisotropic scattering elements is proposed and investigated to reveal the inherent law implied by the experimental phenomenon. The theoretical results show that, under given conditions,there exists equivalence between the backward angular glint and the derivative of backscattering echo relative phase with respect to incident angle. This work not only clears up a misunderstanding on the concept of angular glint ,but also provides theoretical basis for obtaining angular glint by backscattering measurement in the case of no bistatic measurement capability.