Automatic Modulation Identification Using a Frequency Discriminator

David ASANO  Mao OHARA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E91-B   No.2   pp.575-578
Publication Date: 2008/02/01
Online ISSN: 1745-1345
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Devices/Circuits for Communications
Keyword: 
modulation identification,  frequency discrimination,  frequency shift keying,  phase shift keying,  constant envelope modulation,  

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Summary: 
In this paper, an automatic identification method based on frequency discrimination is proposed. The proposed method can be used when the received signal is a constant envelope modulation scheme. To test the proposed method PSK and FSK are considered. Using computer simulations, the performance of the proposed method was evaluated and found to be able to distinguish between PSK and FSK well even in the presence of noise.