DocumentCode
2095823
Title
An method for demodulation from non-stationary ampltitude modulated broad-band signal
Author
Xinwei, Luo ; Shiliang, Fang
Author_Institution
Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University, Nanjing, 210096, China
fYear
2010
fDate
4-6 Dec. 2010
Firstpage
3531
Lastpage
3533
Abstract
The traditional Dectecion of Envelope Modulation on Noise (DEMON) method is difficult to obtain the modulation characteristics when the signal modulation frequency or depth changes with time. For non-stationary modulation characteristics, a modified method ‘HDEMON’ based on Hilbert-Huang Transform (HHT) is given. HDEMON is available for non-stationary mudulation due to its adaptivity and applicability to non-stationary signals. Simulated data and actual radiated noise data analysis show that, HDEMON can extract non-stationary broadband amplitude modulation characteristics, which could suport both modulation source for the target classification and motion analysis.
Keywords
Broadband communication; Demodulation; Feature extraction; Frequency modulation; Noise; Time frequency analysis; DEMON; EMD; HHT; Non-stationary;
fLanguage
English
Publisher
ieee
Conference_Titel
Information Science and Engineering (ICISE), 2010 2nd International Conference on
Conference_Location
Hangzhou, China
Print_ISBN
978-1-4244-7616-9
Type
conf
DOI
10.1109/ICISE.2010.5689107
Filename
5689107
Link To Document