PERFECT PSEUDOPERIODIC 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 are rather sparse, 'pseudoperiodic' binary arrays are discussed. The transmitted binary array is correlated in the receiver with the same a rray which is surrounded periodically by similar ternary arrays. A con struction method is presented that permits the construction of such 'p seudoperiodic' binary arrays with perfect con elation properties for a ll sizes p(1)(a1) x p(2)(a2) (p(1), p(2) odd prime, a(1), a(2) = 1, 2, 3...).