Abstract
We introduce the Wigner Distribution Function (WDF) as a self-windowed Complex Spectrogram (CS) and suggest some methods for the optical generation of the WDF of 2D signals. The resulting WDFs, since they are 4D functions, are represented as sectional images displayed either in parallel or as temporal sequences. We show some typical results obtained from our coherent-optical WDF-processor using the latter display technique.
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