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Feature Analysis of Helicopter Acoustical Signals
Author(s): 
Pages: 56-59
Year: Issue:  1
Journal: Journal of Southwest University of Science and Technology

Abstract: 根据传统语音信号的分析方法分析了直升机声信号,采用MATLAB软件进行了仿真,提取出了两种直升机声信号的短时自相关函数、短时频谱图和线性预测系数LPC,并分析对比了两种不同型号直升机声信号的特征.实验结果表明短时自相关、短时频谱和LPC等特征参数能较好地分析与识别不同类型的直升机声信号.
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