水下航行器声学故障检测中距离有效性的评价

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振动与冲击 ›› 2011, Vol. 30 ›› Issue (5) : 184-187.

论文

水下航行器声学故障检测中距离有效性的评价

徐荣武1; 何琳1; 汤智胤1; 崔立林1

作者信息 +

VARIOUS DISTANCE CONCEPTSON DETECTION OF UNDERWATER VEHICLE’S ACOUSTIC FAULT

Rongwu XU1 Lin HE1

Author information +

文章历史 +

摘要

摘要：引入J-偏差作为有向偏差的改进，提出了一种新的距离有效性评价指标—归一化关键点高度（NKH）。
利用仿真数据和舱段试验数据，以线谱频率改变等4种类型的常见声学故障为研究对象，针对欧氏距离等5种定义，系统
地开展检测有效性的评价研究。结果表明，J-偏差的检测效果要优于常用的欧式距离和Hausdorff距离。

Abstract

Abstract: The J-divergence has been brought forward as an improvement of directive divergence. By introducing a
new kind of evaluation index called Normalized Key-points Height(NKH), a simulation and a cabinet model test has been
proposed to evaluate the effectivness of five different distance concepts including Euclidean distance on four kinds of acoustic
faults. The result shows that the J-divergence is the best choice for acoustic fault detection.

导出引用

徐荣武;何琳;汤智胤;崔立林. 水下航行器声学故障检测中距离有效性的评价[J]. 振动与冲击, 2011, 30(5): 184-187

Rongwu XU Lin HE. VARIOUS DISTANCE CONCEPTSON DETECTION OF UNDERWATER VEHICLE’S ACOUSTIC FAULT[J]. Journal of Vibration and Shock, 2011, 30(5): 184-187