机场噪声实时监测系统的设计与应用
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摘要
机场噪声对周边社区居民的健康生活影响越来越突出,解决噪声问题首先要对飞机噪声进行监测;机场噪声实时监测系统采用双核24位Δ-Σ方式的AD采集技术,利用DSP的计算能力,实现飞机噪声数据的高速采集和实时计算;利用计算得到的时间-声级曲线等参数识别飞机噪声事件,并将声暴露级、声压等参数通过网络发送到云端进行处理,得到有利于机场噪声管理所需参考文件。
The impact of airport noise on the healthy life of residents in surrounding communities is more and more prominent.To solve the noise problem,we must first monitor the aircraft noise.Use dual-core 24-bit delta-sigma AD acquisition technology in the airport noise real-time monitor system,and achieved the high speed acquisition and real-time calculation of aircraft noise data by using the computing power of DSP.Aircraft noise event is identified by using parameters such as calculated time-level curves,and the parameters such as sound exposure level and sound pressure are sent to the cloud for processing through the network,which get the necessary reference documents for airport noise management.
The impact of airport noise on the healthy life of residents in surrounding communities is more and more prominent.To solve the noise problem,we must first monitor the aircraft noise.Use dual-core 24-bit delta-sigma AD acquisition technology in the airport noise real-time monitor system,and achieved the high speed acquisition and real-time calculation of aircraft noise data by using the computing power of DSP.Aircraft noise event is identified by using parameters such as calculated time-level curves,and the parameters such as sound exposure level and sound pressure are sent to the cloud for processing through the network,which get the necessary reference documents for airport noise management.
引文
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[2]李国,李成通,蒿培培.基于Android系统的机场噪声监测终端设计与实现[J].中国民航大学学报,2014,32(2):49-54.
[3]杨东.机场航空噪声的测量及感知系统的设计[D].南京:南京航空航天大学,2014.
[4]沈松,刘通,应怀樵.现代智慧测量仪器的软件体系研究[J].国外电子测量技术,2016,35(12):1-6.
[5]GB 9660-201,机场周围区域飞机噪声环境质量标准[S].
[6]应明,杜峰,应怀樵,等.双24位设计的双核数据采集仪[A].全国振动理论及应用学术会议[C].2007.
[7]Mikina A,Podgórski A.Digital-Filter-Based Compensation of Case Effect in Sound-Level Meters[J].International Journal of Electronics&Telecommunications,2010,56(3):263-266.
[8]Müller G,Moser M.Handbook of Engineering Acoustics[M].Springer Berlin Heidelberg,2013.
[9]刘正士,汪小龙,王勇,等.双线性变换中的频率失真[J].振动工程学报,2002,15(1):102-105.
[10]唐求,贾杨威,滕召胜,等.基于粒子群优化的声级计A计权设计[J].仪器仪表学报,2015,36(4):856-862.
[11]蔡德威,陈章位.一种基于DSP的时间计权声级算法[J].电声技术,2015,39(2):59-64.