ABSTRACT
The radar signal in Moon-Based SAR (MBSAR) exhibits unique properties due to its distinct observation geometry and Earth–Moon relative motion, setting it apart from spaceborne SAR. This chapter delves into signal properties by exploring the Doppler properties of MBSAR. A phase scan-based method is presented for steering the beam center to the zero-Doppler plane to ensure well-focused images. We also examine the error induced by the stop-and-go assumption on MBSAR’s signal. We then further establish a non-stop-and-go echo model and analyze its properties to provide a comprehensive understanding of MBSAR from a signal perspective.
