A new sonar localization strategy using receiver beam characteristics
A new sonar localization strategy using receiver beam characteristics
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DOI：
10.1109/ultsym.2013.0115
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发表时间：
2013-07
期刊：
影响因子：
--
通讯作者：
F. Guarato;J. Windmill;A. Gachagan
中科院分区：
文献类型：
--
作者：
F. Guarato;J. Windmill;A. Gachagan
本文研究了一个已知方向性的单发射器双接收机系统的声纳定位问题。后者与接收到的回波光谱一起用于估计目标相对于声纳系统的方向，同时测量飞行时间以计算距离。特别地，比较了左右两个接收机的波束图的波谱差和波谱比。选择它们的值相等的方向作为目标的方向。利用蝙蝠光束模式的声学模拟进行了模拟，以测试该方法。在噪声条件下，即信噪比为50dB时，大多数方向估计误差为0°。
Sonar localization is addressed in this paper and solved for a system equipped with one emitter and two receivers with known directivity. The latter, along with the spectra of the received echoes, is used to estimate the orientation of the target with respect to the sonar system, while time of flight is measured to calculate the distance. In particular, the difference and the ratio of the right and left receivers' spectra are compared to those of the beam patterns of the two receivers. The orientation at which their values are equal is chosen as that of the target. Simulations are performed making use of the acoustic simulation of a bat's beam pattern to test the method. In noisy conditions, i. e. SNR = 50dB, most of the orientations are estimated with an error of 0°.