Review on Phase Synchronization Methods for Spaceborne Multistatic Synthetic Aperture Radar

被引：0
|
作者：
Lin, Qiang [1 ,2 ]
Li, Shiqiang [1 ,2 ]
Yu, Weidong [1 ,2 ]
机构：
[1] Chinese Acad Sci, Aerosp Informat Res Inst, Dept Space Microwave Remote Sensing Syst, Beijing 100190, Peoples R China
[2] Univ Chinese Acad Sci, Sch Elect Elect & Commun Engn, Beijing 100049, Peoples R China
来源：
SENSORS | 2024年 / 24卷 / 10期
关键词：
spaceborne multistatic SAR; phase synchronization; frequency offset; RESIDUAL MOTION ERRORS; TANDEM-X; BISTATIC SAR; TERRASAR-X; PERFORMANCE PREDICTION; OSCILLATOR NOISE; INTERFEROMETRY; RECONSTRUCTION; CALIBRATION; SATELLITE;
D O I：
10.3390/s24103122
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Multistatic synthetic aperture radar (SAR) is a special mode of SAR system. The radar transmitter and receiver are located on different satellites, which brings many advantages, such as flexible baseline configuration, diverse receiving modes, and more detailed ground object classification information. The multistatic SAR has been widely used in interferometry, moving target detection, three-dimensional imaging, and other fields. The frequency offset between different oscillators will cause a modulation phase error in the signal. Therefore, phase synchronization is one of the most critical problems to be addressed in distributed SAR systems. This article reviews phase synchronization techniques, which are mainly divided into two methods: synchronization by direct microwave link and synchronization by a data-based estimation algorithm. Furthermore, the future development of synchronization technology is anticipated.
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页数：18
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