一种新的地磁信号去噪算法研究  

Research on a New Denoising Algorithm for Geomagnetic Signals

作　　者：吴婉楠 应允翔 胡志文 马隆庆 方震 胡惟[1,2,3,6] 周志 朱厚林 WU Wannan;YING Yunxiang;HU Zhiwen;MA Longqing;FANG Zhen;HU Wei;ZHOU Zhi;ZHU Houlin(Dabie Mountain Earthquake Monitoring and Prediction Experimental Site,Lu'an,Anhui Province,237000 China;Lu'an Earthquake Monitoring Center Station,Lu'an,Anhui Province,237000 China;Anhui Mengcheng Geophysical National Field Observation and Research Station,Mengcheng,Anhui Province,233527 China;Mengcheng Earthquake Monitoring Center Station,Mengcheng,Anhui Province,233527 China;Mengcheng County No.2 Middle School,Mengcheng,Anhui Province,233527 China;Anhui Earthquake Agency,Hefei,Anhui Province,230031 China)

机构地区：[1]大别山地震监测预报实验场,安徽六安237000 [2]六安地震监测中心站,安徽六安237000 [3]安徽蒙城地球物理国家野外观测研究站,安徽蒙城233527 [4]蒙城地震监测中心站,安徽蒙城233527 [5]蒙城县第二中学,安徽蒙城233527 [6]安徽省地震局,安徽合肥230031

出　　处：《科技资讯》2024年第14期22-24,共3页Science & Technology Information

摘　　要：地磁观测数据应用十分广泛。由地磁观测数据对各种环境因素的敏感性,严重影响了地磁数据的处理和利用。如果使用传统的噪声消除算法,难以获得良好的噪声消除效果。混沌序列可以提供一定的随机性和非线性特性,以帮助优化算法更好地搜索最优解。地磁信号则是需要去噪的原始信号。通过使用混沌蚁群算法构建目标函数,可以对地磁信号进行优化和去噪处理。算法会根据目标函数的设定,通过模拟蚁群行为和混沌序列的引导,逐步调整信号的参数和特征,以达到减小噪声、提取有效信息的目的。Geomagnetic observation data is widely used.Due to the sensitivity of geomagnetic observation data to various environmental factors,the processing and utilization of geomagnetic data are seriously affected.Chaotic sequences can provide certain randomness and nonlinear characteristics to help optimization algorithms better search for optimal solutions.The geomagnetic signal is the original signal that needs to be denoised.By using Chaos Ant Colony Algorithm to construct the objective function,geomagnetic signals can be optimized and denoised.The algorithm will gradually adjust the parameters and features of the signal by simulating ant colony behavior and guiding chaotic sequences based on the setting of the objective function,so as to achieve the purpose of reducing noise and extracting effective information.

关 键 词：地磁数据 噪声信号 混沌序列 混沌蚁群优化算法 

分 类 号：P315[天文地球—地震学]