Abstract
Arrays with good correlation properties are required for
coded-aperture 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 discussed. Mismatched filtering entirely
suppresses any sidelobes of the periodic autocorrelation function at
the expense of a slightly reduced signal-to-noise ratio. New
construction methods for binary arrays are presented for which this
loss, with respect to periodic or odd-periodic correlation, converges
to zero with an increasing array size.
© 1998 Optical Society of America
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