This article presents an acoustic water leak detection system. It shows all the stages for doing acoustic leak signal processing and classification. The te...

• Liselene de Abreu Borges
• Miguel Arjona Ramírez

• Water Leak Detection
• SVM
• AR
• PCA

SBrT 2010

We propose a new method to model the effect of finite-precision arithmetic in infinite impulse response (IIR) digital filters. As an application, we use th...

• José Carlos M. Bermudez
• Fernando G. Almeida Neto
• Vítor H. Nascimento

• Saturation
• IIR filters
• Markov chains
• finite precision arithmetic

SBrT 2010

This paper presents a beamforming algorithm for antenna arrays attending to both power and signal-tointerference-plus-noise (SNIR) ratio constraints. The pr...

• Ciro A. Pitz
• Marcelo G. Vanti
• Orlando J. Tobias
• Rui Seara

• Adaptive antenna arrays
• beamforming algorithm
• duality approach
• LMS-based algorithm

SBrT 2010

In this paper, we propose an optimal Joint Call Admission Control (JCAC) in next generation wireless networks, where different radio access technologies (R...

• Rodolfo W. L. Coutinho
• Vitor L. Coelho
• Joao C. W. A. Costa
• Glaucio H. S. Carvalho

SBrT 2010

The high peak-to-average power ratio (PAPR) is one of the main disadvantages of OFDM systems, which reduces the transmission efficiency with non-linear pow...

• Ian Alves Ulian
• André Noll Barreto

• OFDM
• PAPR
• non-linear power amplifier
• total degradation
• channel coding

SBrT 2010