An Adaptive Time Delay Estimator Based on ETDE Algorithm with Noisy Measurements. Issue 4 (1st July 2017)

• Record Type: Journal Article
• Authors: Xia, Wei; Jiang, Wenying; Zhu, Lingfeng
• Is Part Of: Chinese journal of electronics. Volume 26:Issue 4(2017)
• Page Start: 760
• Page End: 767
• Publication Date: 2017-07-01
• Subjects: Adaptive filter -- Time delay estimate -- Noisy measurements -- Colored input; adaptive estimation -- adaptive filters -- delays -- filtering theory -- iterative methods -- transient response; adaptive time delay estimator -- ETDE algorithm -- explicit time delay estimation algorithm -- noisy measurements -- unbiased impulse response estimation approach -- weighted error function -- filter coefficients -- modified error function -- colored input -- signal‐to‐noise ratio scenario -- adaptive filter; Electronics -- Periodicals; Electronics -- China -- Periodicals; Electronics; China; Periodicals; 621.38105
• DOI: 10.1049/cje.2017.04.011
• Languages: English
• ISSNs: 1022-4653

Abstract

Abstract : We address the problem of adaptive time delay estimation with noisy measurements. We develop a computationally efficient adaptive time delay estimator based on Explicit time delay estimation (ETDE) algorithm, by applying the unbiased impulse response estimation approach. In this algorithm, a weighted error function is derived, and the time delay is explicitly parameterized in the filter coefficients and iteratively updated directly by utilizing the modified error function. Simulations validate the performance of the proposed algorithm for colored input and low signal‐to‐noise ratio scenarios.