Propagation constraints in elephant localization using an acoustic sensor network

Abstract

In this paper we discuss elephant localization framework using acoustic sensor network. We further analyze the effect of various meteorological parameters in elephant vocalization propagation and their consequential effects on elephant positioning accuracy. In addition, we present the effect of signal-to-noise ratio (SNR) on detection of vocalization signal which consequently affects the localization accuracy. Extensive simulation results reviled that the uniform distribution of the temperature throughout the localization area does not defect the localization accuracy. Our results show that temperature variations between sensors and wind velocity and direction have significant effect on positioning accuracy of the system. Regardless of this, it is revealed that the localization accuracy decreases enormously once the SNR level fall under certain marginal level.