Using STMR Configuration for Doppler Ambiguity Resolving Bistatic SAR Imaging
利用一发多收的双基SAR构型解多普勒模糊成像

This paper focuses on the translation-invariant bistatic SAR Doppler ambiguity resolving by using Single-Transmitter-Multiply-Receivers (STMR) mounted on different platforms. The range dependent Doppler in the bistatic configuration is analyzed, based on which a bistatic Doppler ambiguity suppression algorithm is proposed. The approach obtains the range dependent steering vectors of ambiguous signal components in the same Doppler bins by numerical calculation, and the spatial domain filtering is used to reconstruct the full bandwidth Doppler spectrum. Finally, the available bistatic imaging algorithms can be used to obtain the wide swath and high resolution SAR image. Simulation confirms the validity of the approach.