This article provides a general overview of local wave decomposition (LWD) methods
including empirical mode decomposition (EMD), ensemble EMD, complete ensemble EMD …

Seismic signal analysis is the main step in data processing through the petroleum
exploration via costly seismic investigations. Precision of target delineation by seismic data …

Time-frequency methods, which allow us to observe the seismic signal in time and
frequency domains simultaneously, can efficiently discern the seismic response features of …

Strong noise in seismic data seriously affects many steps in seismic data processing and
imaging. While most traditional methods depend on carefully tuned input parameters by …

Recently, due to low cost and convenience, the concept of estimating the bridge's first
natural frequency through indirect measurements of a passing vehicle has gained …

Ground roll is a common coherent noise in land seismic acquisition, which is usually
characterized by high amplitudes, low frequencies, and low propagation velocities …

We proposed a seismic time-frequency analysis method using time-varying filtering based
empirical mode decomposition (TVF-EMD). TVF-EMD is a recently-developed signal …

Electrocardiogram (ECG) signal can be thought of as an effective indicator for detection of
various arrhythmias. However, the acquired ECG data is always corrupted by amounts of …

To eliminate the noise from the signals received by MEMS vector hydrophone, a joint
algorithm is proposed in this paper based on wavelet threshold (WT) denoising, variational …

The presence of natural gas reserves is correlated frequently with the observation of a
shadow with low frequency. The phenomenon known as" low-frequency shadow" describes …