Research On Visualization Technology Of Electromagnetic Environment Based On Electronic Sand Table

In recent years,the study of electronic sand dises has been a hot spot at home and abroad.The electromagnetic situation is shown in the electronic sand table,which can reflect the situation of electromagnetic environment directly,conveniently and accurately,so as to facilitate users'understanding of electromagnetie situation.This paper mainly studies from the following aspects.In the first part,the radar power range model is studied and the detection range of radar equation is simulated.Using the geometrical opties approximation method.the calculation,in the free space for the probe scope of 3 d visualization,at the same time also realized under the eondition of electronic sand table detector in 3-D visualization terrain shade conditions.In the second part,the method of target association and situation assessment is introduced and studied in the process of electronic sand table data fusion.Combines statistical method and topology complement each other,is proposed based on nearest neighbor-point topology of heterogeneous sensor target association algorithm,and the target detection probability as the target associatioa algorithm parameters of target correlation.Then,based on the pre-processed data,the TOPSIS situation assessment method was adopted to assess the target threat level of the electronic sand table,and the extracted situation elements were exhibited.In the third part,the visualization of plot and target threat is studied.In this paper,we mainly study the method of irregular military standard,such as target track and arrow mark,etc.,based on B-spline,the trajectory,arrow,and tincture of three kinds of irregular forces are plotted.A method for visualizing the target threat level of electronic sand plate is designed,which combines the 3-D plotting technology with color coding to visualize the target threat level.