大地测量与地球动力学2025，Vol.45Issue(8)：806-812,7.DOI:10.14075/j.jgg.2024.08.407
卫星激光测距回波信号实时识别方法
Real-Time Recognition Method for Satellite Laser Ranging Echo Signals
王瑾瑜 1邹彤 2朱威2
作者信息
- 1. 中国地震局地震研究所,武汉市洪山侧路40号,430071
- 2. 中国地震局地震研究所,武汉市洪山侧路40号,430071||武汉引力与固体潮国家野外科学观测研究站,武汉市洪山侧路40号,430071||中国地震局地震大地测量重点实验室,武汉市洪山侧路40号,430071
- 折叠
摘要
Abstract
To address the challenges of excessive noise points and weak effective signals in satellite la-ser ranging(SLR)echo data,which hinder accurate and rapid signal identification,this study proposes a composite real-time signal identification method.The method integrates an improved traditional his-togram-based approach with the Graz fast filtering algorithm,optimizing both identification accuracy and processing efficiency.A simulated platform was established to replicate signal generation proces-ses,preliminarily validating the algorithm's advantages.Experimental validation using measured data(1 ms per data point)demonstrated that the proposed algorithm achieved a false detection rate of 8.71％,significantly lower than the 32.71％and 43.52％rates of two conventional secondary filte-ring algorithms,while maintaining comparable missed detection rates(about 10％).Post-processing analysis of 1 million echo datasets(100 000 echoes per satellite for 20 satellites)revealed an average computation time of 4.31 s,outperforming the conventional algorithms(7.28 s and 12.45 s).关键词
卫星激光测距/实时识别/复合算法/二次滤波Key words
satellite laser ranging/real-time recognition/composite algorithm/secondary filtering分类
天文与地球科学引用本文复制引用
王瑾瑜,邹彤,朱威..卫星激光测距回波信号实时识别方法[J].大地测量与地球动力学,2025,45(8):806-812,7.
