MISMATCHED FILTERING OF PERIODIC AND ODD-PERIODIC BINARY ARRAYS

Arrays with good correlation properties are required for coded-apertur e imaging, as well as for other applications of two-dimensional signal processing. Since binary arrays with perfect periodic autocorrelation functions exist for only a few sizes, mismatched filtering is discuss ed. Mismatched filtering entirely-suppresses any sidelobes of the peri odic autocorrelation function at the expense of a slightly reduced sig nal-to-noise ratio. New construction methods for binary arrays are pre sented for which this loss, with respect to periodic or odd-periodic c orrelation, converges to zero with an increasing array size. (C) 1998 Optical Society of ?America.