Time-delay estimation of chirp signals in the fractional fourier domain

Ran Tao; Xue Me Li; Yan Lei Li; Yue Wang

doi:10.1109/TSP.2009.2020028

Time-delay estimation of chirp signals in the fractional fourier domain

Ran Tao^*
, Xue Me Li
, Yan Lei Li
, Yue Wang

^*此作品的通讯作者

信息与电子学院

Beijing Institute of Technology
Beijing Electronic Science and Technology Institute

科研成果: 期刊稿件 › 文章 › 同行评审

82 引用（Scopus）

摘要

A new time-delay estimator is presented in this paper. It is evaluated based on the delay property of the fractional Fourier transform with less computation and is suitable for chirp signals. The statistical analysis in terms of signal-to-noise ratio (SNR) and estimation accuracy for this estimation is also studied. The proposed method for the time delay yields a variance which is theoretically equal to the Cramér-Rao lower bound. The validity of this estimation method is demonstrated via simulations.

源语言	英语
页（从-至）	2852-2855
页数	4
期刊	IEEE Transactions on Signal Processing
卷	57
期	7
DOI	https://doi.org/10.1109/TSP.2009.2020028
出版状态	已出版 - 2009

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10.1109/TSP.2009.2020028

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title = "Time-delay estimation of chirp signals in the fractional fourier domain",

abstract = "A new time-delay estimator is presented in this paper. It is evaluated based on the delay property of the fractional Fourier transform with less computation and is suitable for chirp signals. The statistical analysis in terms of signal-to-noise ratio (SNR) and estimation accuracy for this estimation is also studied. The proposed method for the time delay yields a variance which is theoretically equal to the Cram{\'e}r-Rao lower bound. The validity of this estimation method is demonstrated via simulations.",

keywords = "Cram{\'e}r-Rao lower bound, Fractional Fourier transform, Time-delay estimation",

author = "Ran Tao and Li, \{Xue Me\} and Li, \{Yan Lei\} and Yue Wang",

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AU - Tao, Ran

AU - Li, Xue Me

AU - Li, Yan Lei

AU - Wang, Yue

PY - 2009

Y1 - 2009

N2 - A new time-delay estimator is presented in this paper. It is evaluated based on the delay property of the fractional Fourier transform with less computation and is suitable for chirp signals. The statistical analysis in terms of signal-to-noise ratio (SNR) and estimation accuracy for this estimation is also studied. The proposed method for the time delay yields a variance which is theoretically equal to the Cramér-Rao lower bound. The validity of this estimation method is demonstrated via simulations.

AB - A new time-delay estimator is presented in this paper. It is evaluated based on the delay property of the fractional Fourier transform with less computation and is suitable for chirp signals. The statistical analysis in terms of signal-to-noise ratio (SNR) and estimation accuracy for this estimation is also studied. The proposed method for the time delay yields a variance which is theoretically equal to the Cramér-Rao lower bound. The validity of this estimation method is demonstrated via simulations.

KW - Cramér-Rao lower bound

KW - Fractional Fourier transform

KW - Time-delay estimation

UR - https://www.scopus.com/pages/publications/67650146571

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ER -

Time-delay estimation of chirp signals in the fractional fourier domain

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