GRAPHICAL VECTOR DESCRIPTION OF SAMPLING WEIGHTS IN PHASE-DETECTING ALGORITHMS

A theory of phase-detecting algorithms based on Fourier theory was des cribed by Freischlad and Koliopoulos (1990), We present an application of this theory to a discrete sampling, It is shown that Greivenkamp ( 1984) results for a least-squares fitting of the sampling points can b e obtained from this Fourier theory, We also present a new graphical v ector description of the conditions required by the sampling weights i n synchronous phase detection algorithms, Some applications of this gr aphical representation are presented. (C) 1997 Society of Photo-Optica l Instrumentation Engineers.