The Leak Detection of Heating Pipe Based on Multi - Scale Correlation Algorithm of Wavelet
نویسندگان
چکیده
Timely detection and high positioning accurate of leakage signals are the guarantee to the safe transport of heating pipeline, which can reduce economic losses and improve heating quality. In order to detect leaks timely and accurately, this paper presents a method that multi-scale correlation algorithm of wavelet to analyze the singular values by monitoring infrasonic signal. Combining the improved high-frequency coefficient domain algorithm of wavelet with multi-scale cross-correlation algorithm, the method deals with signals by cross-correlation analysis layer by layer based on the multi-scale of wavelet. By weighting in the frequency domain and whitening the signals, the signal to noise ratio can be improved and singular values may be detected accurately. Experimental results show that the algorithm has a better effect of positioning and improve the positioning accuracy of leak detection of pipeline. Copyright © 2013 IFSA.
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تاریخ انتشار 2013