基于动态卫星云图的机载气象雷达视觉仿真方法  

Airborne Weather Radar Visual Simulation Based-on Dynamic Satellite Cloud Image

作　　者：张军[1] 

机构地区：[1]江南大学数字媒体学院,江苏无锡214122

出　　处：《系统仿真学报》2016年第6期1344-1350,共7页Journal of System Simulation

基　　金：江苏省自然科学基金(BK20141113;BK20130158)

摘　　要：针对飞行模拟器中机内航电设备显示画面仿真需求,提出一种基于动态卫星云图的大范围航空气象条件实时仿真算法,并进一步构建出基于虚拟气象数据的快速气象雷达回波显示画面的仿真方法。该方法利用二维简化纳维-斯托克斯方程及云微物理方程作为气象条件仿真核心数值计算模型,将复杂的大范围三维云场演化、风场重建和雷达波后向散射等物理过程仿真计算简化为二维图像处理问题。实际应用表明,方法可在普通PC平台上实时向飞行模拟器输出视觉逼真的机载气象雷达设备的动态显示画面。A real-time simulation algorithm was proposed to generate a wide range of the common aviation weather condition for the flight simulator based-on a set of dynamic satellite cloud images. With this efficient weather simulation algorithm, a fast radar echo visual simulating method was proposed. The proposed method used the 2D simplified Navier-Stokes and microphysics equations to implement the essential numerical simulation of the aviation weather condition. By this way, the complex problem of large-scale cloud resolving and particle-backscattering computing could be viewed as a simple 2D multi-resolution image processing. Real application on the flight simulator shows that the proposed method can provide a vividly visual airborne weather radar display in real-time on a normal PC platform.

关 键 词：机载气象雷达 航空气象 飞行模拟器 视觉仿真 风场重建 

分 类 号：TP391.9[自动化与计算机技术—计算机应用技术]