Title :
On modeling of the air transmission channel for sonar systems
Author :
Aiordachioaie, Dorel ; Sirbu, Gabriel ; Gogu, Anisia
Author_Institution :
Dunarea de Jos Galati Univ., Galati, Romania
Abstract :
Time and frequency domain models of the air transmission channels for sonar systems, narrow and wide frequency range are considered. The objective of the investigation if the estimate de waveform at the point where scattering might occur and at the point of the reception, if the scattering and reflection phenomena are known. Approximate transfer functions were established for various discrete distances from the usual range of the sonar were considered. Local and general models are presented and discussed. Simulation results are discussed in two cases narrow and wide frequency ranges. The studies is pointing the effects of air channel over ultrasonic waves and prepare the framework to investigate models and effects of the targets described by the change in the received signals.
Keywords :
frequency-domain analysis; sonar signal processing; time-domain analysis; transfer functions; air transmission channel; approximate transfer functions; frequency domain model; narrow frequency range; sonar systems; time domain model; ultrasonic waves; wide frequency range; Adaptation model; Atmospheric modeling; Attenuation; Computational modeling; Delay effects; Mathematical model; Transfer functions; frequency and time models; signal processing; sonar; system identification;
Conference_Titel :
Electrical and Electronics Engineering (ISEEE), 2010 3rd International Symposium on
Conference_Location :
Galati
Print_ISBN :
978-1-4244-8406-5
DOI :
10.1109/ISEEE.2010.5628498
