An Improved Classification Algorithm of MDPSK Signals Based on Cumulants

HAN Gang; LI Jian-dong; LI Chang-le; CAI Xue-lian

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An Improved Classification Algorithm of MDPSK Signals Based on Cumulants

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- An Improved Classification Algorithm of MDPSK Signals Based on Cumulants
- Acta Electronica Sinica Vol. 32, Issue 10, Pages: 1613-1616(2004)
- 作者机构：
  
  1. 中兴通讯股份有限公司,广东,深圳,518057
  2. 西安电子科技大学 ISN国家重点实验室信息科学研究所,陕西,西安,710071
  3. 中兴通讯股份有限公司广东深圳,518057
  4. 西安电子科技大学 ISN国家重点实验室信息科学研究所陕西西安,710071
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN914.3
- Published：2004
- 稿件说明：
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HAN Gang, LI Jian-dong, LI Chang-le, et al. An Improved Classification Algorithm of MDPSK Signals Based on Cumulants[J]. Acta Electronica Sinica, 2004, 32(10): 1613-1616.
DOI：

HAN Gang, LI Jian-dong, LI Chang-le, et al. An Improved Classification Algorithm of MDPSK Signals Based on Cumulants[J]. Acta Electronica Sinica, 2004, 32(10): 1613-1616. DOI：

摘要

本文研究了收发双方存在载波频差时利用累积量实现调制分类这一实际问题

提出一种改进的基于累积量的信号分类算法.新算法利用信号相位星座图和各阶累积量的对应关系

提取累积量特征.该特征对于星座图的平移、尺度和相位旋转以及收发载频存在的频差具有不变性.本文从理论上证明了新特征的不变性

并利用计算机仿真评估了该算法的分类性能.仿真结果表明这种算法具有良好的分类性能.

Abstract

An improved algorithm for classification of MDPSK signals based on cumulants is presented in this paper

which is robust to the error of the carrier synchronization.The new algorithm uses the corresponding relationship between signal difference phase constellation and higher order cumulants.From the relationship a new feature is derived.The feature is invariant with respect to constellation scale

rotation

the shift and the carrier frequency offset between transmitter and receiver.The invariant property of the feature is proved in theory.The simulation results show that the new classification algorithm is high in performance.

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