Abstract
Multifractional correlation is proposed that is based on a new generalized
fractional Fourier transform to which we refer as a multifractional Fourier
transform. The multifractional correlation yields remarkable improvements
in the correlation output peak intensity, peak sharpness, and light efficiency
compared with convention correlation, which uses matched and phase-only filters,
and still maintains better target discrimination capability and a reasonable
robustness to noise. An optoelectronic hybrid system that can implement the
multifractional correlation is also suggested.
© 2001 Optical Society of America
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