A Novel Ultrahigh-Resolution and Wide-Swath Sliding Spotlight SAR Imaging approach Based on Poisson Disk Sampling Strategy

Since multichannel sliding spotlight synthetic aperture radar (SAR) can simultaneously achieve high-resolution and wide-swath (HRWS) remote sensing observations, the large volume of data collected from multiple channels increases the burden on the data link, while the estimation and compensation of channel errors further complicate the signal processing. To reduce hardware costs and algorithm complexity while ensuring HRWS capabilities, this letter proposes a novel single-channel ultrahigh-resol