NDLI: Detection of a random amplitude modulation in polynomial phase signals

Content Provider	IEEE Xplore Digital Library
Author	Morelande, M.R. Zoubir, A.M.
Copyright Year	1999
Description	Author affiliation: Sch. of Electr. & Comput. Eng., Curtin Univ. of Technol., Perth, WA, Australia (Morelande, M.R.)
Abstract	We consider the problem of detecting the presence of a random amplitude modulation in polynomial phase signals embedded in additive white Gaussian noise. The presence of a random amplitude can be determined by testing the hypothesis that the modulating process has zero variance against the one-sided alternative. Under the assumption that the modulating sequence is Gaussian a likelihood ratio test is derived. A test which uses cyclic moments-based estimators is also proposed. Under the Gaussian assumption and for large sample lengths the cyclic moments-based test has performance equivalent to the likelihood ratio test but requires much less computation. The cyclic moments-based test may still be applied when the modulating sequence is non-Gaussian. Simulation results are presented which indicate the utility of the cyclic moments-based test.
Starting Page	700
Ending Page	704
File Size	428297
Page Count	5
File Format	PDF
ISBN	0780357000
ISSN	10586393
DOI	10.1109/ACSSC.1999.832419
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1999-10-24
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Phase detection Amplitude modulation Polynomials Testing Amplitude estimation Light rail systems Australia Random processes Phase estimation Frequency estimation
Content Type	Text
Resource Type	Article
Subject	Signal Processing Computer Networks and Communications

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