预警系统对低空目标探测的地形遮蔽算法研究

Research on Terrain Defilade Algorithm for Early Warning System to Low Altitude Target Detecting

地形遮蔽是影响预警探测系统发现目标能力的关键因素。有效算法是实施模拟仿真的基础。在分析电磁波和光线在地球大气层内传播过程中的机理和现象的基础上 ,充分考虑了地球的曲率影响和大气的折射效应及吸收效应 ,针对某实际问题 ,建立了预警系统对低空目标探测的地形遮蔽模型算法。本算法实用性好、精度高 。

Terrain defilade is a key factor for early warning system (EWS) in detecting low altitude targets, effective algorithm provides the foundation of operational simulation. In this paper, a new detecting model is built up for EWS to low altitude target, based on analyzing the mechanism of electromagnet wave and light in its transmission, the curve influence and refraction and absorb of atmosphere effectiveness are very finely considered in the algorithm. This algorithm is tested to be practical, high resolution, and can be used in timely war game simulation.