Doppler Frequency Parameters Estimation in the Fractional Fourier Transform Domain

DOI

10.2991/mcei-16.2016.27How to use a DOI?

Keywords

Fractional fourier transform; Fractional correlation; Doppler frequency; Parameter estimation

Abstract

A new method based on fractional correlation theory for estimating the Doppler parameters of the echoes signal is presented. Firstly, a signal array model is constructed with time-variant Doppler frequency. Secondly, one of the Doppler frequency parameters, initial Doppler frequency, is estimated by energy concentrated of multipath component based on fractional correlation transform. Then, an order-reduced signal is reconstructed combining the Doppler with the prior knowledge of the transmitted signal, and the echoes signal is converted to many single-frequency signals. Finally, the multipath time delay is obtained by the dechirping method. Simulation results are given in this paper and the results show that the new method is valid.

Copyright

© 2017, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Li Li
PY  - 2016/12
DA  - 2016/12
TI  - Doppler Frequency Parameters Estimation in the Fractional Fourier Transform Domain
BT  - Proceedings of the 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016)
PB  - Atlantis Press
SP  - 130
EP  - 133
SN  - 1951-6851
UR  - https://doi.org/10.2991/mcei-16.2016.27
DO  - 10.2991/mcei-16.2016.27
ID  - Li2016/12
ER  -