NDLI: Generalized likelihood ratio test for selecting a geo-acoustic environmental model

Content Provider	IEEE Xplore Digital Library
Author	Meeklenbrauker, C.F. Gerstoft, P. Pei-Jung Chung Bohme, J.F.
Copyright Year	1997
Description	Author affiliation: Ruhr-Univ., Bochum, Germany (Meeklenbrauker, C.F.)
Abstract	A generalized likelihood ratio test is considered for testing acoustic environmental models with application to parameter inversion using an acoustic propagation code. In the following, we use the term "hierarchy of models" to denote a sequence of model structures M/sub 1/, M/sub 2/, ... in which each particular model structure M/sub m/ contains all previous ones as special cases. We propose a combined parameter estimation and multiple sequential test for simultaneously determining the model order and its parameters: given the observed data, how many parameters should be included in the model? The last question is important for the order selection problem in hierarchies of models with increasing number of parameters where the observations are corrupted by additive noise. Monte Carlo simulations show the behaviour of the sequential test for selecting a model order as a function of the SNR. Finally, the test is applied to broadband data measured using a vertical array near the island of Elba in the Mediterranean Sea and compared with Akaike's information criterion.
Starting Page	463
Ending Page	466
File Size	378663
Page Count	4
File Format	PDF
ISBN	0818679190
ISSN	15206149
DOI	10.1109/ICASSP.1997.599675
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1997-04-21
Publisher Place	Germany
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Acoustic testing Parameter estimation Acoustic propagation Sequential analysis Sensor arrays Frequency domain analysis Statistical analysis Sonar detection Frequency estimation Data models
Content Type	Text
Resource Type	Article

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