F-22飞行速度对雷达探测性能的影响
发布时间：2019-02-28 21:32
【摘要】：针对隐身飞机飞行速度不同会影响雷达探测性能的问题,采用侧站平飞模型对隐身飞机的空气动力学原理进行了分析,推导雷达坐标系与机体坐标系之间的转换矩阵进行了视线姿态角的解算,进而设定了航迹参数。结合F-22的全空域静态RCS数据库,仿真了三种飞行速度下动态RCS的起伏变化量,并进一步得到了归一化雷达作用距离与检测概率分别在时间序列上变化的仿真结果。分析结果表明:隐身飞机的飞行速度越快,防空雷达搜索和跟踪目标的难度将会增加,且在一定程度上降低了雷达的探测性能。
[Abstract]:In view of the problem that different flight speed of stealth aircraft will affect radar detection performance, the aerodynamics principle of stealth aircraft is analyzed by side station parallel flight model. The transformation matrix between radar coordinate system and airframe coordinate system is derived to calculate the line of sight and attitude angle, and then the track parameters are set. In this paper, the fluctuation of dynamic RCS at three flight speeds is simulated based on the static RCS database in the whole spatial domain, and the simulation results of the time series variation of the range and detection probability of the normalized radar are obtained. The analysis results show that the faster the flight speed of stealth aircraft, the more difficult it will be to search and track targets for air defense radar, and to a certain extent, the detection performance of radar will be reduced.
【作者单位】： 空军工程大学;
【分类号】：TN959
本文编号：2432189
[Abstract]:In view of the problem that different flight speed of stealth aircraft will affect radar detection performance, the aerodynamics principle of stealth aircraft is analyzed by side station parallel flight model. The transformation matrix between radar coordinate system and airframe coordinate system is derived to calculate the line of sight and attitude angle, and then the track parameters are set. In this paper, the fluctuation of dynamic RCS at three flight speeds is simulated based on the static RCS database in the whole spatial domain, and the simulation results of the time series variation of the range and detection probability of the normalized radar are obtained. The analysis results show that the faster the flight speed of stealth aircraft, the more difficult it will be to search and track targets for air defense radar, and to a certain extent, the detection performance of radar will be reduced.
【作者单位】： 空军工程大学;
【分类号】：TN959
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