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An enhanced mixed modulated Lagrange explicit time delay estimator with noisy input

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Abstract

The mixed modulated Lagrange explicit time delay estimation (MMLETDE) algorithm provides an efficient time delay estimation between narrowband or sinusoidal signals. However, it does not explicitly consider the additive measurement noise at the input, which actually exists in practice. Aiming at this issue, an enhanced MMLETDE algorithm is proposed for noisy inputs based on the unbiased impulse response estimation technique, assuming that the noise power ratio is known a priori. Simulation results show that for narrowband signals or sinusoids over a wide frequency range, the proposed algorithm with a small filter order performs well in moderate and high noise scenarios.

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Authors and Affiliations

  1. School of Electronic Engineering, University of Electronic Science and Technology of China, Chengdu, 611731, China

    Wei Xia, Ju-lei Zhu, Wen-ying Jiang & Ling-feng Zhu

  2. Department of Electrical and Computer Engineering, Stevens Institute of Technology, Hoboken, New Jersey, 07030, USA

    Wei Xia

Authors
  1. Wei Xia
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  2. Ju-lei Zhu
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  3. Wen-ying Jiang
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  4. Ling-feng Zhu
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Corresponding author

Correspondence to Wei Xia.

Additional information

Project supported by the National Natural Science Foundation of China (No. 61101173), the State Scholarship Fund by the China Scholarship Council (CSC), and the Oversea Academic Training Funds (OATF) by University of Electronic Science and Technology of China (UESTC)

ORCID: Wei XIA, http://orcid.org/0000-0001-6443-8704

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Xia, W., Zhu, Jl., Jiang, Wy. et al. An enhanced mixed modulated Lagrange explicit time delay estimator with noisy input. Frontiers Inf Technol Electronic Eng 17, 1067–1073 (2016). https://doi.org/10.1631/FITEE.1500417

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  • DOI: https://doi.org/10.1631/FITEE.1500417

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