Conventional de-noising methods by threshold filter in wavelet domain do not utilize the correlations of seismic data to remove random noises.
常规小波域阈值去噪方法未能充分利用地震信号相关性的特点进行去噪 ,只能去除地震信号中部分随机噪声 ,为此提出了一种小波域分时分频相关结合阈值去噪处理方法。
The application of WT approach to seismic data processing has bright future,and hence further research into this field is of great value.
小波变换方法由于具有同时在时间域与频率域分析的特点,在信号的分析处理方面得到了广泛的应用,将其应用于地震信号噪声的处理,有着更好的应用前景和研究价值。
The effect of using conventional KL transform to remove strong energy random noises of seismic data is not very good.
常规KL变换对于具有强随机噪声的地震信号处理效果不佳 ,本文提出一种将小波变换和KL变换结合使用的去噪处理新方法。
Using Hilbert-Huang transform to pick up instantaneous parameters of seismic signal;
利用Hilbert-Huang变换提取地震信号瞬时参数
One method for frequency-division obtainment of instantaneous characteristics of seismic signals in wavelet domain, and its application.;
地震信号瞬时特征在小波域分频提取的方法和应用
Application of the Hilbert-Huang transform to the analysis of seismic signal;
HHT方法及其在地震信号处理中的应用
A pipeline security monitoring method based on the seismic signal detection and processing was proposed aiming at the oil and gas pipeline peripheral security problem.
地震检波器组及处理单元组成的检测系统采集管道周围地面入侵目标在活动时产生的地震动信号;由于不同目标产生地震波信号的频率、能量等特征不同,通过小波变换的时频分析方法处理这些信号,可以获得不同传感器测量信号中入侵目标特征频率出现的时间差异;根据时间差和传感器阵列与入侵目标的相对位置,实现对入侵目标的空间定位。
Since seismic signals may be produced by moving targets such as persons and vehicles moving on the ground,seismic sensors are used for collecting the signals.
针对人员、车辆等地面目标运动时产生的地震动信号,利用地震动传感器采集这些信号并作预处理,再通过模糊识别算法对目标特征进行分类识别,进而构建了一个地面三维目标的探测识别系统。
The Feature extraction of seismic signals is the key technology of the ground target identification.
地面目标地震动信号的特征提取是进行地面目标识别技术的关键,针对人员、车辆等地面目标运动时产生的地震动信号,利用SLJ-100FBA-T型三分向力平衡加速度计进行了多次测试,通过典型时域分析方法得出信号的时域特征,利用Welch法进行了频域分析,最终得到的信号时域、频域特征向量可作为目标识别的依据。
marine seismic generator
海洋地震信号发生器
APPLICATION OF PHASE INFORMATION TO SIGNAL DETECTION OF ARTIFICIAL SEISMIC SOURCE
人工地震信号检测中相位信息的利用
The Development of Seismic Signals Acquisition System Based on MEMS Seismometer;
基于MEMS地震仪的天然地震信号采集系统的开发
Seismic phase separation technique of micro-seismic signal by polarization-position correlation
微地震信号的偏振—位置对比法震相分离技术
Design of Monitor&control System for Earthquake Based on GPRS;
基于GPRS网络地震信号测控系统设计
Application and Method of Time-Frequency Characteristic Representation for Seismic Signal;
地震信号的时频特征表示方法及应用
The Application of Wavelet's Singula Points in the Noise Removal of Seismic Signals
小波奇异性在地震信号去噪中的应用
FastICA algorithm and its application in seismic signal noise elimination
FastICA算法及其在地震信号去噪中的应用
Seismic signals are stored digitally in binary code.
地震信号是以二进制编码的数字形式储存的。
Refraction First-Break Automatic Residual Static Corrections by Using Difference Method for the Seismic Wave Signals;
地震信号差分法初至折射波自动剩余静校正
Research and Simulation of Seismic Signal De-noising Ways Based on the Wavelet Transform;
基于小波变换的地震信号去噪方法研究与模拟
Time-frequency Analysis and Its Implication in Seismic Signal;
时频分析及在地震信号分析中的应用研究
Research and Application of Seimic Signal De-Noising Ways Based on Wavelet;
基于小波变换的地震信号去噪方法研究与应用
Mathematical Morphology and Its Applications on Seismic Signal Processing;
数学形态学及其在地震信号处理中的应用
Applying Nonlinear Diffusion to Seismic Image Sequences;
非线性滤波技术在地震信号处理中的应用
Research to the Dectection and Direction of the Seismic Wave Fuse Signals Technology
地震波引信信号检测和识别技术研究
Abnormal seismic signals in the TSP advanced geological prediction
TSP超前地质预报异常地震波信号
2)The electromagnetic emission signals of earthquakes observed at present mainly come from the direction of focus or epicentre;
2.目前所观测到的地震电磁辐射信号主要来自震源(或震中)方向。