Doppler Frequency Parameters Estimation in the Fractional Fourier Transform Domain
- Li Li
- Corresponding Author
- Li Li
Available Online December 2016.
- https://doi.org/10.2991/mcei-16.2016.27How to use a DOI?
- Fractional fourier transform; Fractional correlation; Doppler frequency; Parameter estimation
- 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.
- Open Access
- This is an open access article distributed under the CC BY-NC license.
Cite this article
TY - CONF AU - Li Li PY - 2016/12 DA - 2016/12 TI - Doppler Frequency Parameters Estimation in the Fractional Fourier Transform Domain BT - 2016 6th International Conference on Mechatronics, Computer and Education Informationization (MCEI 2016) PB - Atlantis Press SN - 1951-6851 UR - https://doi.org/10.2991/mcei-16.2016.27 DO - https://doi.org/10.2991/mcei-16.2016.27 ID - Li2016/12 ER -