Mengdao Xing

TL;DR: A frequency domain backprojection algorithm, based on local Cartesian coordinate and subregion range cell migration correction, is proposed to deal with accurate range modeling, cross-range-dependent range migration, and space-variant Doppler parameter issues in processing high-squint synthetic aperture radar (SAR) data acquired from maneuvering platforms.

TL;DR: By dividing subapertures, accumulating signal coherently stage by stage in polar format coordinate, Fast Factorized BPA (FFBPA) avoids the progress in Back-Projection Algorithm of repeatedly searching every signal in full aperture for every pixel.

TL;DR: Wang et al. as discussed by the authors proposed a lightweight densely connected sparsely activated detector (DSDet) for ship target detection, which utilizes a style embedded ship sample data augmentation network (SEA) to augment the dataset.

TL;DR: A refocusing algorithm after back-projection integral is proposed to uniformly and coarsely focus moving targets for detection, and then extract the detected targets for refocusing to reduce the computational complexity.

TL;DR: A weight designing method to control the nulls distribution among range bins in the mainbeam is proposed and it is possible to flexibly adjust the positions and notch widths of the range nulls.