Title :
Grouping carrier frequency method for digital and analogue modulations recognition
Author :
Ligang Hou ; Yanqing Li ; Jinhui Wang
Author_Institution :
VLSI & Syst. Integrated Lab., Beijing Univ. of Technol., Beijing, China
Abstract :
In this paper, a new approach of both analogue and digital automatic modulations recognition, based on the key features extraction, is introduced. This new method can recognize the modulation types in the condition of unknown carrier frequency. The modulation frequencies are divided into five groups in order to identify the modulation signals. The modulation recognizer´s frequency range is from 0 to 200K. Six kinds of signals: 2ASK, 2PSK, 2FSK, 4PSK. AM and FM will be recognized. It is found that all types of the modulation signals have been classified with success rate over 98% at the SNR of 10db.
Keywords :
amplitude shift keying; feature extraction; frequency shift keying; phase shift keying; 2ASK; 2FSK; 2PSK; 4PSK; AM; FM; amplitude modulation; amplitude shift keying; analogue automatic modulations recognition; carrier frequency method; digital automatic modulations recognition; frequency modulation; frequency shift keying; key features extraction; phase shift keying; temperature 0 K to 200 K; Digital modulation; Feature extraction; Frequency conversion; Frequency modulation; Pattern recognition; Time frequency analysis; Feature extraction formatting; Grouping carrier frequency; Modulation recognition;
Conference_Titel :
Consumer Electronics, Communications and Networks (CECNet), 2012 2nd International Conference on
Conference_Location :
Yichang
Print_ISBN :
978-1-4577-1414-6
DOI :
10.1109/CECNet.2012.6201940
