Fourth-Order Ambiguity Function Based on the Fractional Fourier Transform
CISP '08 Proceedings of the 2008 Congress on Image and Signal Processing, Vol. 5 - Volume 05
Closed-form discrete fractional and affine Fourier transforms
IEEE Transactions on Signal Processing
The fractional Fourier transform and time-frequency representations
IEEE Transactions on Signal Processing
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Fractional Fourier transform has been emerged as a very promising tool in the analysis of signal processing and optical communication. In radar communication, the ambiguity function plays an important role in estimating the delay and Doppler shift introduced in received signal. With the limitation of ambiguity function based on Fourier transform, the FRFT based ambiguity function has been introduced. But it imposes a large computational complexity in the problems where only delay and Doppler shift is needed to estimate. In this article, a new method is introduced to estimate delay and Doppler shift based on the FRFT of received echo signal.