Automatic detection of the number of Raypaths

Longyu Jiang (1) , Jerome I. Mars (1)

1 GIPSA-SIGMAPHY - GIPSA - Signal Images Physique

In this paper, an Exponential Fitting Test (EFT) is presented in the context of ocean acoustic tomography for detecting the number of the raypaths. It is based on the fact that the profile of the ordered eigenvalues fits an exponential law for white Gaussian noise and small samples. The number of raypaths could be detected when a mismatch occurs between the observed profile and the exponential model. Its performance is studied with simulated experiment datas. EFT works for the case of small number of samples when information theoretic criteria fail.

Domaines: Traitement du signal et de l'image [eess.SP]; Traitement du signal et de l'image [eess.SP]

Longyu Jiang, Jerome I. Mars. Automatic detection of the number of Raypaths. OCEANS 2011 - OCEANS '11 MTS/IEEE. Oceans of Opportunity: International Cooperation & Partnerships across the Pacific, Sep 2011, Kona, Hawaï, United States. pp.110506-027. ⟨hal-00733132⟩