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《Journal of Beijing Institufe of Petrochemical Technology》 2005-01
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Research on Ultrasonic Measurement of Pipeline Thickness Based on Power Spectral Estimation

Tang Jian1 Dai Bo2 (1 Beijing University of Chemical Technology, Beijing 100029; 2 Beijing Institute of Petro-chemical Technology, Beijing 102617)  
Measurement of pipeline thickness is one of the main contents of nondestructive inspection on long distance pipeline. While processing the echo signal received by ultrasonic probes, the classic spectrum estimation method may cause some problems with its low resolution. In order to increase the spectral resolution, Burg maximum entropy method is adopted for ultrasonic echo signal processing. The correctness and the practicality of this method are shown by simulation results.
【CateGory Index】: TE973.6
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