Extraction SR-ELEF Application Based on MALLAT-ALE Analysis
Xiang-jun Wang · 2009
The digital signal processing method for adaptive line enhancement (ALE) with wavelet multi-resolution analysis algorithm (MALLAT) can extract the characteristic signal of the shaft-rate modulated electric field from the environment noise. The method analyzes the signal and noise into different frequency range with wavelet analysis, and the adaptive filter's orders would be shortened. So it improves the speed of convergence and the performance of system. Using this method, the capability of measurement on the shaft-rate modulated electric field of a ship can be improved. Experimental and practical results show that the method is effective.