基于小基线子集的城市表面转变的分析和预测 交叉测量 合成孔径 雷达和飞搜索算法-卷积神经网络-长短记忆模型-长短记忆模型
Yuejuan Chen1,2, Siai Du1,2, Pingping Huang1,2
1College of Information Engineering, Inner Mongolia University of Technology, Hohhot 010051, China.
Sensors (Basel, Switzerland)
|April 27, 2024
概括
城市沉是一个日益增长的地质危险,受到环境因素的影响. 一个新的SSA-CNN-LSTM模型使用气候数据准确预测表面变形,优于传统方法.
科学领域:
- 地质科学 地质科学
- 环境科学 环境科学
- 遥感 遥感 遥感 遥感
背景情况:
- 城市化加剧了地质灾害,如土地沉降.
- 传统模型在时间序列变形数据中的复杂因果关系中扎.
- 温度和降水等环境因素对城市地面稳定性产生重大影响.
研究的目的:
- 开发和验证城市土地沉降的先进预测模型.
- 研究气象和地面温度因素对表面变形的影响.
- 为了比较新的SSA-CNN-LSTM模型与传统神经网络的性能.
主要方法:
- 利用了 2017 年 3 月至 2023 年 2 月的 Sentinel-1A 卫星数据.
- 应用了小基线子集干扰测量合成光圈雷达 (SBAS-InSAR) 技术用于时间序列变形分析.
- 开发了一个子搜索算法-卷积神经网络-长期短期记忆 (SSA-CNN-LSTM) 模型,包含温度,湿度和降水数据.
主要成果:
- 灰色相关性分析证实了六个环境因素对城市表面变形的贡献.
- 与多层感知器 (MLP) 和反向传播 (BP) 模型相比,SSA-CNN-LSTM模型显示出更高的预测准确性.
- 特性点A1,B1和C1的相关系数分别达到0.92,0.83和0.93,验证了该模型的有效性.
结论:
- SSA-CNN-LSTM模型在预测城市表面变形方面取得了重大进展.
- 环境因素在地面沉降的时空演变中起着至关重要的作用.
- 这项研究提供了监测和减轻城市地质危害的创新方法.
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