一种自适应的地面震动信号降噪方法  

An Adaptive Denoising Method for Ground Motion Signals

作　　者：范红波 滕腾 张园[1] 王显云 FAN Hongbo;TENG Teng;ZHANG Yuan;WANG Xianyun(The 3rd Research Institute of China Electronics Technology Group Corporation,Beijing 100015,China)

机构地区：[1]中国电子科技集团公司第三研究所,北京100015

出　　处：《电声技术》2024年第7期32-38,共7页Audio Engineering

摘　　要：针对传统谱减法应对地面震动信号的干扰和噪声时降噪效果差、信号失真的问题,研究和分析不同类型干扰和噪声的功率谱特性,提出一种基于干扰和噪声的功率谱特性自适应选择降噪处理操作的方法,既满足了不同干扰和噪声的降噪要求,也避免了降噪处理造成的信号失真。Aiming at the problem of poor noise reduction effect and signal distortion when the traditional spectral subtraction methods in dealing with interference and noise in ground motion signals,the power spectrum characteristics of different types of interferences and noises have been studied and analyzed.A method based on the power spectrum characteristics of interferences and noises to adaptively select noise reduction processing operations is proposed,which not only meets the noise reduction requirements of different interferences and noises,but also avoids signal distortion caused by noise reduction processing.

关 键 词：地面震动信号 降噪 谱减法 自适应 

分 类 号：TN912.3[电子电信—通信与信息系统]