复杂环境影响下三维雷达作用范围表现

地形、海洋、气象等环境影响下雷达电磁信息的三维表现是未来数字化战场不可回避的问题.在建立大气吸收系数、大气折射率以及地表等环境因素的数字模型基础上,利用高级传播模型、大气吸收衰减模型计算平面内雷达波的传播衰减,根据雷达和目标的相关参数获取平面内雷达作用范围,提出虚拟3D策略来构造三维的雷达作用范围.将典型雷达嵌入到数字战场环境的实验表明,该方法能及时准确形象地展示复杂环境影响下雷达的三维作用范围,允许交互调整雷达和目标参数,从而为用户决策和规划提供支持.

3D representation of radar coverage in complicated environment

The 3D representation of radar electromagnetic information affected by terrain,ocean and weather is an unavoidable problem in the future digital battlefield.Based on the digital models of the complex environment factors such as atmosphere absorption coefficients,atmosphere refraction index and ground etc,an APM model and an atmosphere absorption attenuation model are used to calculate in-plane propagation loss and so to get the 2D in-plane coverage of given radar.Then these 2D coverages are combined to construct the 3D radar coverage.The experiment of embedding a typical radar into digital battlefield shows that the 3D radar coverage affected by complex environment is vividly and dynamically visualized in real time,and the parameters of both radars and targets could be adjusted interactively,which could provide excellent decision supporting and plan aiding for users.