3D Localization by a Biomimetic Sonar System in a Fire-fighting Application
In this study we investigate the effects of medium disturbances on the usability of a biomimetic sonar system in a target localization application. In particular, we concentrate on a fire-fighting application giving rise to specific types of medium disturbances. We determine experimentally the effects of these medium disturbances: undisturbed air (reference), the presence of small water droplets, large convective air-currents and flames, on the received echo spectra. As the echo spectra are used to estimate the target location, these different conditions by disturbing to varying extents sound propagation through the medium will have an effect on the sonar systems localization performance. Using an information theoretic model of the spectrum based localization mechanism we characterize the loss in localization accuracy due to the different medium disturbances. We conclude that an echolocation system based on the sonar system of the bat Phyllostomus discolor allows for robust localization even in highly disturbed media. However, while the need for replacing the emission pattern of the bat by that of a standard transducer in the biomimetic sonar system makes little difference in the reference and water spray conditions it limits echolocation performance in the air-currents condition and makes the use of the proposed system very difficult in the flames condition.
Ultrasonics Bat echolocation Fire-Fighter Aug-mented Reality
Jan Steckel Wouter Vanduren Herbert Peremans
University of Antwerp FTEW MTT Department Prinsstraat 13, B-2000 Antwerpen Belgium Artesis Hogeschool Antwerpen Productontwikkeling Ambtmanstraat 1, B-2000 Antwerpen Belgium
国际会议
2011 4th International Congress on Image and Signal Processing(第四届图像与信号处理国际学术会议 CISP 2011)
上海
英文
2576-2580
2011-10-15（万方平台首次上网日期，不代表论文的发表时间）