@conference {82, title = {Modeling a Turbulent Atmosphere as a Dynamic Channel for Narrow-Band Ultrasonic Signals}, booktitle = {19th International Congress on Acoustics (ICA{\textquoteright}07)}, volume = {ULT10-19}, year = {2007}, month = {02/09/2007}, pages = {1-6}, address = {Madrid, Espa{\~n}a}, 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.

}, keywords = {DYNAMIC CHANNEL, narrowband ultrasonic signals, TURBULENT ATMOSPHERE}, isbn = {84-87985-12-2}, url = {http://www.sea-acustica.es/WEB_ICA_07/fchrs/papers/ult-10-019.pdf}, attachments = {https://geintra-uah.org/system/files/MODELING_A_TURBULENT_ATMOSPHERE_AS_A_DYNAMIC_CHANNEL_FOR.pdf}, author = {Fernando J. {\'A}lvarez and Ure{\~n}a, J. and {\'A}lvaro Hern{\'a}ndez and Ana Jimenez and Jos{\'e} Manuel Villadangos and Mar{\'\i}a del Carmen Perez} }