Fractional cosine and sine transforms in relation to the fractional Fourier and Hartley transforms

The fractional cosine and sine transforms – closely related to the fractional Fourier transform, which is now actively used in optics and signal processing, and to the fractional Hartley transform – are introduced and their main properties and possible applications as elementary fractional transforms of causal signals are discussed.

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doi:10.1109/ISSPA.2003.1224765