Compared of Polarity Correlation Algorithm and LMS Algorithm for Flow Velocity Measurement

Abstract:

This paper summarizes the basic principle of flow velocity measurement, analysis of the structure of the polarity correlation algorithm, the circuit implementation, and the peak point determination, then introduced the LMS(Least mean square) algorithm in flow velocity measurement , thereafter,the simulation experiment of the two algorithms are performed. Experimental results show that with a noisy environment, the measurement accuracy of the polarity correlation algorithm reduced, since the LMS algorithm can automatically adjust its parameters to the external factors, so it can still have a accurate date in flow velocity measurement.

• Periodical: Advanced Materials Research (Volumes 945-949)
• Pages: 2155-2159
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.945-949.2155
• Online since: June 2014
• Authors: Peng Cheng Yan*, Meng Ran Zhou, Yun Chuan Ma
• Keywords: Flow Velocity Measurement, LMS, Peak Point, Polarity Correlation Algorithm

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