Affiliation:
1. Kitami Institute of Technology, Kitami, Hokkaido 0908507, Japan
Abstract
This paper presents a new idea of impulse response shortening in time difference of arrival (TDOA) measurement algorithm for underwater acoustic localization. Due to strong multipath interference caused by acoustic wave reflection, the pseudo-peaks occur when calculating a correlation function. Their pseudo-peaks disturbs the detection of a correct time position and leads to large TDOA measurement errors. In our previous paper, we presented the impulse response based GCC-PHAT (IR-GCC-PHAT), which computes a time difference by taking a cross-correlation between two impulse responses. As the further improvement, we study the effects of impulse response shortening that removes the pseudo-peaks. The effectiveness of impulse response shortening is explained by observing acoustic wave paths on an acoustic propagation simulator and verified by the simulation results
Publisher
North Atlantic University Union (NAUN)
Subject
Electrical and Electronic Engineering,Signal Processing
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献