Pseudorandom gratings for noncoherent theta-decoders
Luis Díaz-Santana, Javier Piñataro, Jorge Ojeda‐Castañeda · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 1999
Pseudorandom sequences are strings of binary numbers with a binary autocorrelation function. This property is here exploited for implementing a lensless, nonshadow casting correlator for Theta-decoding.