Modulation Recognition Based on Constellation Diagram for M-QAM Signals
This paper proposed a modulation recognition algorithm for M-QAM signals by the constellation diagram which does not require the prior information.Firstly, this scheme estimates the modulation parameters.Secondly, it reconstructs the received signals constellation and uses k means cluster algorithm to compute the number of the signal constellation points which are as a recognition feature used for classification.The experimental simulation results proves that this method is effective for M-QAM signals, and the correct recognition ratio reaches 100% under the condition that the SNR is higher than 15dB.So it has relativelyv preferable practical value.
modulation recognition clustering constellation K-means clustering algorithm M-QAM
Chou Zhendong Jiang Weining Xiang Changbo Li Min
The 41st Institute of China Electronics Technology Group Corporation,Qingdao 266555,China University of Electronic Science and Technology of China,Chengdu 610054,China
国际会议
哈尔滨
英文
70-74
2013-08-16（万方平台首次上网日期，不代表论文的发表时间）