Utilize este identificador para referenciar este registo:
|Título:||Underwater Acoustic simulations with a time variable acoustic propagation model|
Rodríguez, O. C.
Jesus, S. M.
|Citação:||A. SILVA, O. C. RODRÍGUEZ, F. ZABEL, J. HUILLERY, S. M. JESUS, "Underwater Acoustic simulations with a time variable acoustic propagation model", in Proc. 10th European Conference on Underwater Acoustics, 2010, Istanbul|
|Resumo:||The Time Variable Acoustic Propagation Model (TV-APM) was developed to simulate underwater acoustic propagation in time-variable environments. Such environment variability induces a strong Doppler channel spread, which is an important factor to test and evaluate the performance of equalization algorithms. In current simulations, Doppler spread is usually included a posteriori in a stationary Acoustic Propagation Model (APM), and is designed for specific environmental parameters such as source-receiver range variability or surface motion. However, environmental variations affect Doppler spread in a complex manner, and an accurate TV-APM simulation for time varying channels, being performed at the same sampling rate as the transmitted signal, would require a large number of runs at high frequencies. A strategy in the current implementation of the TV-APM was developed to reduce the number of runs, while preserving the variable-channel Doppler spread. Simulations were done to draw a performance map for a given equalizer in a given environment and the results revealed that the TV-APM is a useful prediction tool of communication equalizers performance.|
|Aparece nas colecções:||FCT4-Vários|
Ficheiros deste registo:
|Underwater Acoustic simulations with a time variable acoustic propagation model.pdf||508,16 kB||Adobe PDF||Ver/Abrir|
Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.