An improved phase synchronization method for bistatic SAR in echo domain

Ruohan Hou; Hongxing Dang; Shirun Li; Xin Liu; Tianshun Xiang

doi:10.1117/12.3029811

21 June 2024 An improved phase synchronization method for bistatic SAR in echo domain

Ruohan Hou, Hongxing Dang, Shirun Li, Xin Liu, Tianshun Xiang

Proceedings Volume 13167, International Conference on Remote Sensing, Mapping, and Image Processing (RSMIP 2024); 1316711 (2024) https://doi.org/10.1117/12.3029811
Event: International Conference on Remote Sensing, Mapping and Image Processing (RSMIP 2024), 2024, Xiamen, China

Abstract

Phase synchronization is a necessary problem in bistatic SAR systems. The traditional phase synchronization problem is solved by the synchronization link between bistatic SAR systems. However, the synchronization link greatly increases the system complexity and periodically interrupts the SAR data acquisition process, thereby introducing new errors. This article further discusses the phase synchronization method in the echo domain under alternating bistatic mode. Changes in terrain fluctuations may cause the phase synchronization method to fail. Therefore, an improved phase synchronization method in the echo domain under alternating bistatic mode is proposed, which adopts the mode of cross transmitting signals from the two bases and extracts sub aperture phase information, The phase synchronization of bistatic SAR is achieved using a method based on the joint processing of information in the bistatic echo domain. Simulation experiments have verified the correctness of theoretical analysis and the effectiveness of the method, providing theoretical support for this method.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Ruohan Hou, Hongxing Dang, Shirun Li, Xin Liu, and Tianshun Xiang "An improved phase synchronization method for bistatic SAR in echo domain", Proc. SPIE 13167, International Conference on Remote Sensing, Mapping, and Image Processing (RSMIP 2024), 1316711 (21 June 2024); https://doi.org/10.1117/12.3029811

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