... 背景反射 {计} background reflectance 背景反射信号 background returns 背景放映 background projection ...
基于16个网页-相关网页
仿真分析表明，最大熵谱估计和LMS自适应算法相结合可以有效地从背景噪声中提取有用的激光反射回波信号。
Simluation results show that the maximum entropy spectral estimation and LMS adaptive algorithm can extract echo signal of laser ranging system effectively from background noises.
在超声反射回波的数学模型基础上，利用小波滤波方法对超声信号进行预处理，提取强噪声背景中的弱回波信号。
This paper attempts to preprocess ultrasonic signal by wavelet filtering based on the mathematical model of the ultrasonic echo, extracts weak echoes from signal with high noise background.
深反射地震资料处理的关键是从干扰背景中提取和增强深层弱有效信号，提高剖面的信噪比和分辨率。
The present paper has dealt systematically with a practical and effective deep reflection seismic technique—small-scale wide line reflection seismic technique.
应用推荐