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- Title
Review on Phase Synchronization Methods for Spaceborne Multistatic Synthetic Aperture Radar.
- Authors
Lin, Qiang; Li, Shiqiang; Yu, Weidong
- Abstract
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.
- Subjects
SPACE-based radar; SYNTHETIC aperture radar; SYNTHETIC apertures; RADAR transmitters; SYNCHRONIZATION; THREE-dimensional imaging; PHASE modulation
- Publication
Sensors (14248220), 2024, Vol 24, Issue 10, p3122
- ISSN
1424-8220
- Publication type
Article
- DOI
10.3390/s24103122