Fast Time-Recursive Block Correlators for Pseudorandom Sequences
David Akopian, Phani K. Sagiraju, Brent M. Nowak · IEEE Transactions on Circuits and Systems I Regular Papers · 2013
Correlators for pseudorandom sequences are used in direct sequence spread spectrum communication systems for signal synchronization and identification of transmitters. Implementation aspects of these correlators are critical for real-time processing of signals. This paper presents fast correlator structures in time domain which significantly reduce redundant operations using time-recursive and block processing. The approach can be extended to other applications which use correlations with both binary and non-binary sequences.