在GBSAR监测中使用Sage-Husa自适应卡尔曼过和RTS平滑进行检查模式的数据重建方法
Yaolong Qi1,2, Jialiang Guo1,2, Jiaxin Hui1,2
1College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, China.
Sensors (Basel, Switzerland)
|July 12, 2025
概括
这项研究引入了一种新的方法,用于重建地面合成光圈雷达 (GBSAR) 监测中缺少的数据. 该方法结合了自适应卡尔曼过和RTS平滑来恢复空间和时间连续性,提高了变形分析的准确性.
科学领域:
- 地质物理学 地质物理学
- 地质测量是指地质测量.
- 遥感 遥感 遥感 遥感
背景情况:
- 基于地面的合成孔径雷达 (GBSAR) 对地质危险的早期预警和结构变形监测至关重要.
- 数据缺口,称为"检查模式",破坏GBSAR的时空连续性和变形分析准确性.
- 设备突然故障或多区域运行导致这些关键数据缺口.
研究的目的:
- 为GBSAR检查模式开发一个强大的数据重建方法.
- 为了解决缺少数据造成的空间和时间连续性的损失.
- 为了提高变形监测的准确性和稳定性.
主要方法:
- 一种新的数据重建方法,结合了Sage-Husa Kalman适应过和Rauch-Tung-Striebel (RTS) 平滑.
- 动态调整噪声共变量以适应非静态观测数据,克服传统的卡尔曼波器"模型不匹配".
- 使用RTS平滑来消除数据空白期间的累积错误,并恢复完整的变形时间序列.
主要成果:
- 提出的方法成功地恢复了GBSAR检查数据的空间和时间连续性.
- 实验和模拟结果证实了自适应过和光滑方法的有效性.
- 在变形监测的整体准确性和稳定性方面取得了显著的改进.
结论:
- 结合的Sage-Husa Kalman自适应过和RTS平滑有效地重建了GBSAR数据缺口.
- 这种方法提高了对地质危险和工程结构的变形监测的可靠性.
- 该方法为在连续GBSAR监控系统中维护数据完整性提供了可行的解决方案.
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