Effective Perceived Noise Level(EPNL)

In this paper,the Effective Perceived Noise Level(EPNL) is adopted for a single flight event and the Weighted Equivalent Continuous Perceived Noise Level(WECPNL) is used for many flight events in a period of time.

采用有效感觉噪声级Ｌｅｐｎ作为单个事件的评价量，用计权等效连续感觉噪声级Ｌｗｅｃｐｎ作为一段时间内多个事件的评价量，介绍了机场环境噪声影响预测的完整程序和方法。

The weighted equivalent continuous perceive noise level L WECPN is adopted as airport noise rating parameters,moreover,it combines the topography,scheduled flight,airport types and departure or approach flight paths etc,and computes and draws the noise contours.

采用计权等效连续感觉噪声级LWECPN作为机场噪声评价参数,具体结合机场及周围地区的地形、航班、机种及飞机起降航迹等计算并绘出机场周围地区的等声级噪声暴露图。

This paper adopts weighted equivalent continuous perceive noise level as airport noise rating paramenters,moreover,it combines the topography,scheduled flight,airport types and departure or approach flight paths,etc,and it computes and draws the noise contours.

本文采用计权等效连续感觉噪声级 LWECPN作为机场噪声评价参数 ,具体结合机场及周围地区的地形、航班、机种及飞机起降航迹等计算并绘出机场周围地区的等声级噪声暴露图 。