Title :
Detection of CPM based on second-order cyclostationarity
Author :
Malady, Amy C. ; Beex, A.A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Virginia Tech, Blacksburg, VA, USA
Abstract :
Previous work has focused on the cyclostationarity properties of complex CPM signals; depending on the size of the symbol alphabet and the values and number of modulation indices, evaluation of cyclostationarity at various high orders may be required. A novel detection method is presented that is based on the cyclostationarity present in the individual real and imaginary components of CPM signals. We observe that second-order cyclostationarity exists for certain delay vectors in 1REC CPM signals, regardless of the size of the symbol alphabet or the values and number of modulation indices. This low-order cyclostationarity is exploited to perform blind, asynchronous detection of CPM signals in the presence of complex additive Gaussian noise.
Keywords :
AWGN channels; continuous phase modulation; signal detection; 1REC CPM signals; CPM detection; asynchronous detection; complex CPM signals; complex additive Gaussian noise; continuous phase modulation; delay vectors; imaginary components; modulation indices; second-order cyclostationarity; symbol alphabet; Baseband; Delay; Frequency modulation; Signal to noise ratio; Support vector machine classification; CPM; cyclostationarity; signal detection;
Conference_Titel :
Signals, Systems and Computers (ASILOMAR), 2010 Conference Record of the Forty Fourth Asilomar Conference on
Conference_Location :
Pacific Grove, CA
Print_ISBN :
978-1-4244-9722-5
DOI :
10.1109/ACSSC.2010.5757609
