声源定位与跟踪的搜索空间缩减

Signals Pub Date : 2023-06-26 DOI:10.3390/signals4030025
O. Rodríguez, Lilun Zhang, Xinghua Cheng
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引用次数: 1

摘要

本文回顾了SACLANTCEN 1993年地中海实验的实验数据,以评估在三维环境中定位和跟踪声源的搜索空间的缩小。实现这一目标的关键是对震源范围和深度的初步估计(称为二维初始猜测);通过环境信号处理,可以从二维初始猜测中获得源方位的模糊估计,并且可以通过仅在方位估计较高的距离/方位区域中搜索源来消除模糊估计。该算法提供了新的源距离估计和单一方位估计,并与源深度估计一起构成了简化的源定位和跟踪搜索空间的中心。在SACLANTCEN实验数据上进行了不同频率、静止源和运动源的实验验证。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Search Space Reduction for Localization and Tracking of an Acoustic Source
Experimental data from the SACLANTCEN 1993 Mediterranean Experiment are reviewed to assess the reduction of the search space for the localization and tracking of an acoustic source in a three-dimensional environment. Key to this goal is the availability of an initial estimate of source range and depth (called the 2D initial guess); an ambiguous estimate of source bearing can be obtained from the 2D initial guess through Environmental Signal Processing, and the ambiguity can be removed by searching for the source only in the range/bearing regions where bearing estimates are higher. This search provides a new estimate of source range and a single bearing, which together with the estimate for source depth constitute the center of the reduced search space for source localization and tracking. The suggested approach is tested on experimental data from the SACLANTCEN experiment considering different frequencies, as well as a stationary and a moving source.
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CiteScore
3.20
自引率
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审稿时长
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