MULTIPLE-SYMBOL DIFFERENTIAL DETECTION OF MPSK

被引：466

作者：

DIVSALAR, D

SIMON, MK

机构：

[1] Jet Propulsion Laboratory, California Institute of Technology, Pasadena

来源：

IEEE TRANSACTIONS ON COMMUNICATIONS | 1990年 / 38卷 / 03期

关键词：

D O I：

10.1109/26.48887

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A differential detection technique for MPSK, which uses multiple-symbol observation interval, is presented and its performance analyzed and simulated. The technique makes use of maximum-likelihood sequence estimation of the transmitted phases rather than symbol-by-symbol detection as in conventional differential detection. As such the performance of this multiple-symbol detection scheme fills the gap between conventional (two-symbol observation) differentially coherent detection of MPSK and ideal coherent of MPSK with differential encoding. The amount of improvement gained over conventional differential detection depends on the number of phases M and the number of additional symbol intervals added to the observation. What is particularly interesting is that substantial performance improvement can be obtained for only one or two additional symbol intervals of observation. The analysis and simulation results presented are for uncoded MPSK. © 1990, IEEE.

引用

页码：300 / 308

页数：9