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Study on Theory and Methods of Time-delay Estimation of Signal with Alpha Stable Noise

Author: ShiHongWei
Tutor: ShiYaoWu
School: Jilin University
Course: Control Theory and Control Engineering
Keywords: Delay estimation α stable distribution Fractional lower order statistics Adaptive Time Delay Estimation Signal-to-noise ratio Peak performance
CLC: TN911.23
Type: Master's thesis
Year: 2007
Downloads: 169
Quote: 1
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Abstract


Α stable distribution of the basic properties and the traditional delay estimation method based on a detailed analysis of the existing law and adaptive law for α time delay estimation method based on fractional lower order statistics . Two new delay estimation method : based on the the limiting integrator delay estimation method and the improved adaptive delay estimation method , the simulation showed a very good performance . Retain the information of a signal based on the maximum extent of the limiter integrator , while suppressing the noise power of α , and thus can be estimated using conventional delay estimation methods . Improved adaptive delay estimation method from the start delay estimation target design a delay estimation method . Demonstrated superior performance in the simulation . And export the α noise is estimated according to the results of time delay estimation algorithm of the degree of signal attenuation . In order to evaluate the performance of various algorithms designed delay estimation results of an evaluation method in the paper this method is used to evaluate the performance of time delay estimation method .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Communicate > Communication theory > Information Theory > Signal detection and estimation
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