Abstract
We present a new method of estimating the Chirp signal parameter based on fractional Fourier transform (FRFT). The slope of the Chirp single is firstly estimated using FRFT according to its expectation. By redefining the variable meaning of the FRFT and the improved FRFT, the time-delay of multiple Chirp signals is estimated. The validity of the methods is demonstrated through simulations, and the proposed methods can achieve both high accuracy and less calculation.
This work is supported in part by the National Natural Science Foundation of China under the Grant 51075175
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Yang, W., Shi, Y. (2013). Parameter Estimation of Chirp Signals Based on FRFT Under the Low SNR. In: Lu, W., Cai, G., Liu, W., Xing, W. (eds) Proceedings of the 2012 International Conference on Information Technology and Software Engineering. Lecture Notes in Electrical Engineering, vol 210. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-34528-9_57
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DOI: https://doi.org/10.1007/978-3-642-34528-9_57
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