Journal of Guangxi Normal University(Natural Science Edition) ›› 2016, Vol. 34 ›› Issue (4): 26-31.doi: 10.16088/j.issn.1001-6600.2016.04.004

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Parameter Resolution Analysis of Gaussian Model of Ultrasonic Signal Based on Fuzzy Function

MA Fuhua, LU Zhenkun   

  1. College of Information Science and Engineering, Guangxi University for Nationalities, Nanning Guangxi 530006, China
  • Received:2016-06-03 Online:2016-07-18 Published:2018-07-18

Abstract: Fuzzy function is an important tool for the performance analysis of ultrasonic testing systems. In this paper, the ultrasonic Gaussian model is proposed at first. Then, the fuzzy function of the ultrasonic signal for Gaussian model is derived in detail. Finally, the resolution of time and frequency for an ultrasonic testing system is analyzed, which is related to distance of detection target and speed of moving target. Reference for selecting parameter value of an ultrasonic testing system is provided. Theoretical derivation and simulation results show that it is better to discern moving targets by using a narrow bandwidth signal. And for distinguishing short-range targets, a short-duration signal is ideal.

Key words: fuzzy function, resolution analysis, Gaussian model

CLC Number: 

  • TB911.7
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