Research And Implementation Of The Acceleration Technique For The Simulation System Of Electromagnetic Situation Based On The Ray-tracing Algorithm

This research is about the simulation system of the electromagnetic situation,which is based on the ray-tracing method.The article would introduce the research status,prospects,theoretical basis,and technique method about the simulation of the electromagnetic situation.Then it would verify the accuracy of the system by the comparison of the simulation results and the test results in reality.What’s more,it would provide acceleration methods which all have no effects on the accuracy of the system.On the one hand,in consideration of the requirement of multiband results,all the bands of the electromagnetic wave are regarded as a whole in the ray-tracing process,and then they are superimposed and composed separately from the ray-tracing results.In this way,multiple ray-tracing processes are avoided for the traverse of all the bands.On the other hand,in consideration of the structure of the triangular meshes of the terrain,the judgment processes of whether a ray intersects with the terrain are optimized by the decomposition of dimensions and the relevance of two adjacent triangular facets.For the regular triangular meshes of the terrain structure,the searching process is based on the binary tree.While for the irregular ones,the data structure of related triangular facets is constructed,and the transmission searching process is adopted.At last,the acceleration methods which are all have no effect on the accuracy would be verified by with the comparison of the traditional method.