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Fourier transforms of phase objects and implications for optical correlators

โœ Scribed by John L. McClain Jr.; Don A. Gregory

Publisher
John Wiley and Sons
Year
2000
Tongue
English
Weight
164 KB
Volume
25
Category
Article
ISSN
0895-2477

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โœฆ Synopsis

Spatial light modulators used as inputs to optical correlators often modulate both the amplitude and phase of coherent illumination. This means that matched filters that are commonly used are not truly matched to the scenes displayed on these modulators. Filters are normally calculated from an assumed amplitude-only input. A few analytically manageable examples of Fourier transforms of phase objects are giยจen which demonstrate the errors that can occur, and suggestions are made for using the phase-modulating characteristics to an adยจantage.

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