Multiple-symbol double-differential detection based on least-squares and generalized-likelihood ratio criteria
M.K. Simon, Jianhua Liu, Petre Stoica, Jian Li · IEEE Transactions on Communications · 2004
Two algorithms for double-differential detection of multiple phase-shift keying modulation are proposed, based on a least-squares criterion and a generalized-likelihood ratio test, respectively. While both algorithms take advantage of the performance gain obtained by observing the received signal over an observation interval longer than that required for symbol-by-symbol detection, the former has the important advantage of reduced implementation complexity, whereas the latter offers better performance.