White noise

Gene

Wavelet packet decomposition

Network packet

SIGNAL (programming language)

Transformation (genetics)

Algorithm

Second-generation wavelet transform

Engineering

Statistics

Additive white Gaussian noise

Energy (signal processing)

Telecommunications

Biochemistry

Computer science

Computer network

Wavelet transform

Pattern recognition (psychology)

Mathematics

Image (mathematics)

Electronic engineering

Artificial intelligence

Chemistry

Programming language

Noise reduction

Noise (video)

Wavelet

Journal of Sensors

In order to solve the problem of industrial sensor signal denoising, an integrated denoising method for sensor mixed noises based on wavelet packet transform and energy-correlation analysis is proposed. The architecture of proposed method is designed and the key technologies, such as wavelet packet transformation, energy-correlation analysis, and processing method of wavelet packet coefficients based on energy-correlation analysis, are presented. Finally, a simulation example for a specific signal and an application of shearer cutting current signal, which mainly contain white Gaussian noise and impact noise, are carried out, and the simulation and application results show that the proposed method is effective and is outperforming others.

An Integrated Denoising Method for Sensor Mixed Noises Based on Wavelet Packet Transform and Energy-Correlation Analysis