NDLI: Modulation recognition of MAPSK signals using template matching

Content Provider	IET Digital Library
Author	Deng, Yuan ce Wang, Zhu gang
Abstract	A feature-based modulation recognition algorithm is proposed, to identify practical multilevel amplitude phase shift keying (MAPSK) signals using template matching, which suffers from various unknown effects, including carrier frequency, time delay and phase shift. The probability distribution functions (PDFs) of the amplitudes for each modulation constellation are estimated from the corresponding analytic signal of a received intermediate frequency signal. Then, a template matching algorithm based on Kullback-Leibler divergence is used to evaluate the similarity between the PDF of the amplitude for a received signal and the PDF templates, which has been stored in advance. The simulation results show that the proposed modulation recognition algorithm performs robustly and precisely even in an extremely low signal-to-noise ratio. The performance of the proposed algorithm is not very sensitive to the number of used symbols or timing error, which means that the performance will not be seriously degraded with a less number of symbols or with a larger timing error for symbol synchronisation.
Starting Page	1986
Ending Page	1988
Page Count	3
ISSN	00135194
Volume Number	50
e-ISSN	1350911X
Issue Number	Issue 25, Dec (2014)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/el/50/25
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/el.2014.2700
Journal	Electronics Letters
Publisher Date	2014-12-01
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Carrier Frequency Delay FB Modulation Recognition Algorithm IF Signal Intermediate Frequency KLD Kullback-Leibler Divergence MAPSK Signal Modulation And Coding Method Modulation Constellation Modulation Recognition Multilevel Amplitude Phase Shift Keying PDF Phase Shift Phase Shift Keying Probability Probability Distribution Function Signal Processing Signal Processing And Detection Signal to Noise Ratio SNR Statistics Symbol Synchronisation Template Matching Template Matching Algorithm Time Delay
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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