大气传输条件下机场标灯光强分布的研究

Luminous Intensity Distribution of AerodromeBeacon Under the Condition of the Atmospheric Transmission

分析和研究机场标灯光强角度分布的设计方法．方法从光度学原理出发，考虑到大气消光的影响，建立了标灯探测的数学模型，采用ＬＯＷＴＲＡＮ６软件模拟大气传输特性，结果在综合考虑飞机飞行高度、距离以及较好的大气条件下，得到标灯发光强度随仰角的分布特性曲线，它对于机场标灯的分析和设计具有重要的指导意义．结论不同探测距离要求标灯具有不同的光强分布．

Aim The method of designing the luminous intensity distribution of aerodrome beacon was analyzed and investigated. Methods Taking account of the effects of atmospheric transmission on the basis of photometric principles, a mathe- matics model was established for aerodrome beacon detection, and the software LOWTRAN6 was used to simulate atmospheric transmission. Results With a comprehensive consideration of various fight heights and distances of the aerocraft under favorable atmospheric conditions , the distribution characteristic curves of beacon luminous intensity that should be satisfied at various elevation angles were obtained, which are of importance to the beacon analysis and design. Conclusion Different luminous intensity distributions are required for different ranges of detec- tion.