面向泛网格式监测点布局的机场噪声动态等值线绘制

发布时间：2018-07-06 11:05

本文选题：泛网格 + 机场噪声可视化　；参考：《中国民航大学》2015年硕士论文

【摘要】：为实现我国成为民航强国的目标,我国民航业迅速发展,机场噪声对周围人民的影响也日益严重。机场噪声等值线图,可直观显示出机场对其附近区域的噪声影响状况,为机场管理部门提供机场噪声控制及土地规划依据,动态的机场噪声等值线图可直观反映出机场周边区域噪声实时情况,为管理部门制定出降噪飞行计划提供依据。本文首先对机场噪声监测系统现状进行分析,提出了面向泛网格式机场噪声监测点布局的概念,并说明了泛网格式分布的机场噪声监测点布局对于首都噪声监测的重要作用,而后分析了泛网格式布局的机场噪声监测点会对绘制机场噪声等值线带来的问题,并对国内外机场噪声可视化文献进行了研究分析,将机场噪声预测与机场噪声等值线相结合得出本文基于泛网格式布局的机场噪声监测点可并行的噪声等值线绘制模型。针对泛网格式布局的机场噪声监测点分布特点,首先将机场按泛网格数据分布特点,以区域内监测点密度是否能够支持直接绘制噪声等值线为区域划分原则,将机场噪声监测区域进行划分。随着区域划分的完成,机场噪声等值线绘制任务也随之分割成为每个区域内等值线绘制的子任务,建立并行绘制模型。而后,对于不可直接绘制噪声等值线区域,利用机场历史监测数据及机场噪声预测软件并应用本文提出算法对该区域内噪声数据进行生成,使得各区域内均为网格式的数据,各区域内应用等值线追踪算法对网格数据进行处理生成等值线追踪路径,最后将各区域内等值线追踪路径进行连接、拟合,完成对一幅机场噪声等值线图的绘制,应用本文弥补数据传输与动态绘制之间差异的算法,对机场进行动态的噪声等值线绘制。
[Abstract]:In order to realize our country's goal of becoming a strong country of civil aviation, the civil aviation industry of our country has developed rapidly, and the influence of airport noise on the people around is becoming more and more serious. The noise isoline map of the airport can directly show the noise influence of the airport on the adjacent area, and provide the airport management department with the basis for the noise control and land planning of the airport. The dynamic contour map of airport noise can directly reflect the real time noise around the airport and provide the basis for the management department to formulate the noise reduction flight plan. In this paper, firstly, the present situation of airport noise monitoring system is analyzed, and the concept of airport noise monitoring point layout oriented to pan-grid is put forward, and the important function of airport noise monitoring point layout with pan-grid distribution for capital noise monitoring is explained. Then it analyzes the problems caused by airport noise monitoring points with pan-grid layout, and studies and analyzes the visualization literature of airport noise at home and abroad. By combining airport noise prediction with airport noise isoline, a parallel noise contour drawing model of airport noise monitoring points based on pan-grid layout is proposed in this paper. In view of the distribution characteristics of airport noise monitoring points in pan-grid layout, firstly, according to the characteristics of pan-grid data distribution, the regional division principle is whether the density of monitoring points in the region can support the direct drawing of noise isolines. The noise monitoring area of the airport is divided. With the completion of the region division, the airport noise contour drawing task is divided into sub-tasks of isoline drawing in each region, and a parallel rendering model is established. Then, for the noise isoline region that can not be drawn directly, using the airport history monitoring data and airport noise prediction software and applying the algorithm presented in this paper to generate the noise data in the region, the data in each region are grid type. The contour tracing algorithm is used to process the grid data to generate the contour tracing path. Finally, the contour tracing path in each region is connected and fitted to complete the drawing of an airport noise contour map. In this paper, the algorithm of bridging the difference between data transmission and dynamic rendering is used to draw the dynamic noise contour of the airport.
【学位授予单位】：中国民航大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：V351

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