TY - CONF T1 - Detecting ultrasonic signals in a turbulent atmosphere: performance of different codes T2 - 5th IEEE International Symposium on Intelligent Signal Processing (WISP2007) Y1 - 2007 A1 - Fernando J. Álvarez A1 - Ureña, J. A1 - Álvaro Hernández A1 - Ana Jimenez A1 - Carlos De Marzziani A1 - José Manuel Villadangos A1 - María del Carmen Perez KW - TURBULENT ATMOSPHERE KW - Ultrasounds AB - Signal coding and pulse compression provide ultrasonic systems with the capability to obtain accurate measurements that are nearly independent of the conditions of operation. This property, together with the high robustness to noise also achieved with these techniques, are making possible the development of high reliability systems intended for outdoor operation. However, these systems must face new problems not found indoors, such as the effect of atmospheric turbulence on the shape of the emitted waveforms. This work presents a comparative analysis of the performance of different codes that are used to encode the signals of an ultrasonic sensory system designed to operate under strong turbulence conditions. JF - 5th IEEE International Symposium on Intelligent Signal Processing (WISP2007) PB - IEEE CY - Alcalá de Henares, España VL - 1 SN - 1-4244-0829-6 UR - http://ieeexplore.ieee.org/Xplore/login.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fstamp%2Fstamp.jsp%3Ftp%3D%26arnumber%3D4447649%26isnumber%3D4447490&authDecision=-203 ER -