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Erschienen in:
2012 | OriginalPaper | Buchkapitel
Study on the Recognition Algorithms for TDR Reflected Wave
verfasst von : Jianhui Song, Guohua Zhang, Peixin Sun, Naili Feng, Shaolin Xu
Erschienen in: Advances in Future Computer and Control Systems
Verlag: Springer Berlin Heidelberg
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The measuring accuracy of the TDR cable length measurement system relies on the recognition of the reflected wave. The reflected wave is susceptible to be affected by noise and the reflected wave detecting error is comparatively large. In order to correctly identifying and detecting the reflected wave, this dissertation studies four reflected wave recognition algorithms, which are established according to the threshold method, centroid method, polynomial fitting method and the wavelet modulus maxima method respectively. The advantages and disadvantages of these algorithms are analyzed. The repeatability and accuracies of the reflected wave arrival time for these algorithms are compared through practical applications.