YANG Faquan, LI Zan, LUO Zhongliang. A New Specific Combination Method of Wireless Communication Modulation Recognition Based on Clustering and Neural Network[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(2):24-29.
YANG Faquan, LI Zan, LUO Zhongliang. A New Specific Combination Method of Wireless Communication Modulation Recognition Based on Clustering and Neural Network[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2015,54(2):24-29.DOI:
a modulation recognition method is proposed based on the clustering algorithm under the low SNR. The characteristic parameter of the signal is extracted by using a clustering algorithm
neural network is trained by using the algorithm of variable gradient correction BP so as to enhance the rate of convergence.The performance of recognition under the low SNR is improved
and the modulation recognition of the signal is realized based on the modulation system of the constellation diagram. Simulation results show that the recognition rate based on this algorithm is enhanced over 30% compared with methods of adopting clustering algorithm or neural network based on BP algorithm alone under the low SNR. The recognition rate can reach 90% when the SNR is 4 dB
and the method is easy to be achieved so that it has broad application prospect in the modulating recognition.
关键词
变梯度修正BP算法聚类算法特征值的提取神经网络调制识别
Keywords
algorithm of variable gradient correction BPclustering algorithmfeature extractionneural networkmodulation recognition