Underwater Acoustic Localization Based on IR-GCC-PHAT in Reverberant Environments
Underwater Acoustic Localization Based on IR-GCC-PHAT in Reverberant Environments
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DOI：
10.46300/9106.2021.15.18
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发表时间：
2021-03
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通讯作者：
S. Yoshizawa
中科院分区：
文献类型：
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作者：
S. Yoshizawa
本文提出了一种混响环境下的水声定位方法。到达时间差（TDOA）测量算法是估计水下声源到达方向（DOA）的关键技术。在强多径干扰下，相关函数中的伪峰干扰了时间位置的正确检测，导致较大的时差测量误差。该算法通过两个脉冲响应的互相关来计算时间差，提高了对多径干扰的鲁棒性。通过仿真和实验两种方法对时差定位算法进行了比较。
This paper presents a method of underwater acoustic localization in reverberant environments. Time difference of arrival (TDOA) measurement algorithm is a key technology for estimating direction of arrival (DOA) of an underwater sound source. In strong multipath interference, the pseudo-peaks in a correlation function disturb the detection of a correct time position and lead to a large TDOA measurement error. The proposed algorithm computes a time difference by taking cross-correlation of two impulse responses and improves robustness to multipath interference. The comparison of TDOA algorithms is done by evaluating the position accuracy of underwater sound source in both simulation and experiment.