Yinshen Wang

1. Introduction Inverse synthetic aperture ladar (ISAL) combines coherent imaging ladar with the inverse synthetic aperture method [1]. Compared to traditional optical imaging, ISAL breaks through the diffraction limit and also possesses photon-level weak signal detection capability. It can achieve centimeter-level high resolution for long-range targets [2,3,4]. In ISAL imaging, to achieve centimeter-level high resolution, the signal needs to have a large time–bandwidth product.

Preprint Article Version 1 This version is not peer-reviewed Version 1 : Received: 4 November 2024 / Approved: 5 November 2024 / Online: 5 November 2024 (08:35:28 CET) Tang, L.; Wang, Y.; Qu, J.; Wang, X.; Ding, M.; Liang, J. A W-Band Real-Time Imaging Mini-SAR System for Unmanned Aerial Vehicles. Preprints 2024, 2024110271. https://doi.org/10.20944/preprints202411.0271.v1 Tang, L.; Wang, Y.; Qu, J.; Wang, X.; Ding, M.; Liang, J.