ABSTRACT
The Moon-Based SAR (MBSAR) is a novel SAR system on the lunar surface, offering a wider swath width and higher spatial and temporal resolutions, providing new opportunities for Earth observation. However, there are notable discrepancies in the generic configuration parameters and system characteristics of MBSAR as opposed to those of airborne/spaceborne SAR. Such a phenomenon is given rise by the distinctive lunar orbit properties coupled with its topographical features and physical librations. This chapter analyzes basic configuration parameters associated with system performance, including the spatial resolution, signal-to-noise ratio (SNR), and pulse repetition frequency (PRF) in the MBSAR. We mainly focus on the azimuthal resolution, which is examined retrospectively and further developed considering the Earth’s rotational motion and MBSAR’s inertial motion. The results concerning those generic parameters provide valuable insights for the configuration design and future deployment of the MBSAR system.
