Title :
The Methods of Recognition for Common Used M-ary Digital Modulations
Author :
Liu Youyong ; Liang Guolong ; Xu Xiaoka ; Li Xinxin
Author_Institution :
Coll. of Underwater Acoust. Eng., Harbin Eng. Univ., Harbin
Abstract :
A general digital modulation recognition method is proposed for common M-ary digital modulations. A coarse recognition is executed, then different algorithms are used to estimate the order of modulation. The estimation method of the number of spectrum peaks is modified and a novel recognition algorithm of modulation order of MASK and MQAM is presented. Simulations results show that the recognition rate of this recognition structure and algorithm can reach 92% for MFSK, MPSK and MASK when the SNR is above 6 dB, and for MQAM, a higher SNR is required.
Keywords :
amplitude shift keying; quadrature amplitude modulation; trees (mathematics); MASK; MQAM; coarse recognition; common used M-ary digital modulations; decision tree; estimation method; general digital modulation recognition method; modulation order; recognition structure; spectrum peaks; Acoustical engineering; Character recognition; Digital modulation; Educational institutions; Frequency shift keying; Phase shift keying; RF signals; Sampling methods; Signal sampling; Underwater acoustics;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2008. WiCOM '08. 4th International Conference on
Conference_Location :
Dalian
Print_ISBN :
978-1-4244-2107-7
Electronic_ISBN :
978-1-4244-2108-4
DOI :
10.1109/WiCom.2008.410
