Algorithm for multiple-symbol differential detection

Details Algorithm for multiple-symbol differential detection Algorithm for multiple-symbol differential detection

2005-01-11

2005-01-11

Chin, Stephen (Department: 2634)

Pulse or digital communications

Receivers

Angle modulation

C375S213000, C375S262000

Reexamination Certificate

active

06842496

ABSTRACT:
A method for differential phase evaluation of M-ary communication data is employed in which the data consists of N sequential symbols r1. . . rN, each having one of M transmitted phases. Selected sequences of N−1 elements that represent possible sequences of phase differentials are evaluated using multiple-symbol differential detection. Using r1as the reference for each phase differential estimate, sN−1phase differential sequences are selected in the form (P2i, P3i, . . . , PNi) for i=1 to s for evaluating said symbol set, where s is predetermined and 1<s<M. Each set of s phase differential estimate values are chosen based on being the closest in value to the actual transmitted phase differential value. These s phase differential estimates can be determined mathematically as those which produce the maximum results using conventional differential detection.

REFERENCES:
patent: 5644592 (1997-07-01), Divsalar et al.
patent: 5684832 (1997-11-01), Adachi et al.
patent: 5786725 (1998-07-01), Boccuzzi et al.
Multiple-symbol differential detection of MPSK , Divsalar, D.; Simon, M.K.; Communications, IEEE Transactions on , vol.: 38 , Issue: 3 , Mar. 1990, pp.:300-308.*
B. Li et al., “Multiple-Symbol Detection for Orthogonal Modulation in CDMA System,” IEEE Transactions on Vehicular Technology, vol. 50, No. 1, Jan. 2001, pp. 321-325.
D. Divsalar et al., “Multiple-Symbol Differential Detection of MPSK,” IEEE Transactions on Communications, vol. 38, No. 3, Mar. 1990, pp. 300-308.

Affiliated with

Also associated with

Rating

Algorithm for multiple-symbol differential detection does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Algorithm for multiple-symbol differential detection, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Algorithm for multiple-symbol differential detection will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3415128