Real-time Modulation Classification Based On Maximum Likelihood

被引：57

作者：

Su, Wei ^{[1
]}

Xu, Jefferson L. ^{[2
]}

Zhou, Mengchu ^{[2
]}

机构：

[1] USA Commun Elect, RD&E Ctr, Ft Monmouth, NJ 07703 USA

[2] New Jersey Inst Technol, Dept Elect & Comp Engn, Newark, NJ 07102 USA

来源：

IEEE COMMUNICATIONS LETTERS | 2008年 / 12卷 / 11期

关键词：

Average likelihood ratio test; modulation classification; software-defined radio;

D O I：

10.1109/LCOMM.2008.081107

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

This paper describes a likelihood test based modulation classification method for identifying the modulation scheme of a software-defined radio (SDR) in real-time without pilot symbols between transmitters and receivers. Unlike the prior art, the paper converts an unknown signal symbol to an address of the look-up table (LUT), loads the pre-calculated values of the test functions for the likelihood ratio test, and produces the estimated modulation scheme in real-time. The statistical performance of the LUT based classifier is studied. Simulation results are presented to confirm the theoretical analysis.

引用

页码：801 / 803

页数：3

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