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Joint fourier transform processor
Author(s) -
Yu F. T. S.,
Ludman J. E.
Publication year - 1988
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650011007
Subject(s) - computer science , joint (building) , fourier transform , hartley transform , digital signal processor , bandwidth (computing) , constant q transform , electronic engineering , discrete fourier transform (general) , computer hardware , fractional fourier transform , short time fourier transform , digital signal processing , engineering , telecommunications , mathematics , fourier analysis , architectural engineering , mathematical analysis
A joint Fourier transform processor can be used as a conventional coherent optical processor. In principle, the joint transform processor can perform all the optical data processing that a conventional coherent optical processor can offer. Sample illustrations for signal extraction and image subtraction are given. The major advantages of the joint transform processor must be (1) the avoidance of synthesizing a matched spatial filter, (2) higher space‐bandwidth product, (3) lower spatial carrier frequency requirement, (4) higher output diffraction efficiency, etc.