Moving target shadow detection capability evaluation method of video SAR system

The invention discloses a moving target shadow detection capability evaluation method for a video SAR (Synthetic Aperture Radar) system, which comprises the following steps of: S1, judging whether a moving target in an observation area of the video SAR system under certain parameters meets conditions of a formula or not, if so, judging that a moving target shadow in a video SAR image can be effectively detected, continuing to execute the step S2, and if not, judging that the moving target shadow in a video SAR image can be effectively detected; otherwise, determining that the moving target shadow is difficult to detect; and S2, an effective shadow pixel number index is defined to carry out quantitative evaluation on the shadow detection capability of the video SAR system, and the larger the effective shadow pixel number index value is, the stronger the moving target shadow detection capability of the video SAR system is. The method can be used for detectability judgment of the moving target shadow of the vide