Multistatic Sar Topology Design Method Based on Wavenumber Spectrum Range Extension

Multistatic Synthetic Aperture Radar (Mu-SAR) can obtain rich target information through multi-platform collaboration, and topology configuration is one of the most important factors that affecting the imaging performance. In this paper, a Mu-SAR topology design method is proposed. First, the echo of Mu-SAR is analyzed in wavenumber domain, the relationship between wavenumber spectrum and topology configuration is deduced. Then, a topology design method based on wavenumber spectrum range extension is proposed to obtain topology configuration that can achieve high resolution imaging in range direction. Finally, through numerical simulation, the effectiveness of the proposed method is verified.