Modeling a Turbulent Atmosphere as a Dynamic Channel for Narrow-Band Ultrasonic Signals

Title	Modeling a Turbulent Atmosphere as a Dynamic Channel for Narrow-Band Ultrasonic Signals
Publication Type	Conference Paper
Año de publicación	2007
Autores	Álvarez, FJ, Ureña, J, Hernández, Á, Jimenez, A, Villadangos, JM, del Perez, MC
Idioma de publicación	English
Conference Name	19th International Congress on Acoustics (ICA'07)
Volumen	ULT10-19
Páginas	1-6
Conference Location	Madrid, España
Fecha de publicación	02/09/2007
Numero ISBN	84-87985-12-2
Palabras clave	DYNAMIC CHANNEL, narrowband ultrasonic signals, TURBULENT ATMOSPHERE
URL	http://www.sea-acustica.es/WEB_ICA_07/fchrs/papers/ult-10-019.pdf
Abstract	This work proposes a semi-empiric model for a turbulent atmosphere as a dynamic channel of transmission of narrow-band ultrasonic signals. It is based on a theoretical expression for the coherence time derived in a previous paper, and on the results obtained from the experimental analysis of propagation of a 50 kHz ultrasonic tone under different turbulence conditions. The model is used to predict the effects of a turbulent atmosphere on the propagation of binary encoded signals and their consequent detection by matched filtering. These predictions are compared with the results obtained with a real pulse compression system operating outdoors.

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Dynamic channel, narrowband ultrasonic signals, turbulent atmosphere.pdf	263.35 KB

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