Funding Reference Programa Ambiente e Defesa, Ministério da Defesa Nacional - Fundação das Universidades Portuguesas
Dates 1999|2001

This project aims to define spectral descriptions, identifying invariant features to characterize some underwater acoustic effects. These descriptions must be substantially reliable so as to enable the automatic classification of those acoustic effects.

Research Groups Signal and Image Processing Group (SIPG)
Project Partners Escola Naval (Portuguese Navy School)
ISR/IST Responsible
Victor Barroso
[1] Paulo Monica de Oliveira, Victor Barroso, Definitions of Instantaneous Frequency under Physical Constraints, Journal of the Franklin Institute, Engineering and Applied Mathematics, Special issue on Time-Frequency Signal Analysis and its Applications, Pergamon, 2000
[2] Paulo Monica de Oliveira, Victor Barroso, Data Driven Underwater Transient Detection Based on Time-Frequency Distributions, IEEE Conference on Oceanic Engineering, OCEANS 2000, Providence, USA, 2000
[3] Paulo Monica de Oliveira, Victor Barroso, Uncertainty in the Time-Frequency Plane, IEEE workshop on Statistical Signal and Array Processing, SSAP 2000, Pocono Maner, USA, 2000