【摘要】 提出了一种基于微声传感器阵列的低空飞行器信号采集方案.为满足无人值守,不间断、长时间工作的要求,采用集成化的设计思想设计了体积小、低功耗的声信号采集电路,并在此基础上提出了一种能满足恶劣环境使用要求的微声传感器封装方法,设计了微型防护咪头.进行了机场实地采集试验,该声信号采集系统在机场进行了实地数据采集实验,并使用MATLAB软件将采集到的数据进行了分析对比,结果表明本文设计的微声传感器在低空飞行器信号采集系统中的应用效果良好.更多还原

【Abstract】 This paper proposed a scheme for collection of aircraft’s noise, which depended on the array of microphone. There were some special requirements of the Sound Collection System because of the special using as no man vatching,continuous and long time vasking. The integrate circuit met the special requirement and a new protective encapsulation was designed to meet the special occasion. The experiment of the sound collection system was done and the analysis result , proved the effective of the system更多还原