距离波门拖引干扰对目标航迹起始的影响机理

Research on The Impact of Range Gate Pull Off Jamming on Track Initiation

距离波门拖引干扰会影响数据处理中目标的航迹起始,分析其拖引速度的设置可以为干扰敌方距离跟踪系统提供理论依据。先给出了这种干扰下的雷达系统的数学模型,分析了航迹起始算法中涉及的初始相关波门、后续相关波门以及干扰对航迹起始的影响机理,详细推导了影响过程,总结了要取得有效的干扰,拖引速度需满足的条件及其相关的因素。最后对这种干扰下的航迹起始进行了仿真,拖引速度的不同会使得干扰对目标的航迹起始有不同的影响,与理论分析结果相符合。

Range Gate Pull Off Jamming has some influence on tracking initiation during data processing, its pulling-off speed settings are analyzed to provide certain theoretical basis for jamming enemy＇ s distance tracking system. At first the mathematical model of the radar system under the jamming is presented, then the initial relative wave gate, the following relative wave gate and the influence mechanism of jamming on tracking initiation that referred in track initia- tion algorithm are analyzed, the impact processing in detail is deduced, the conditions to meet and the relevant factors of pulling-off speed are summarized. Finally simulation of the track ini- tiation under such jamming is done. The different pulling-off speeds make jamming have differ- ent effects on the target tracking initiation. The simulation result is consistent with the theoreti- cal analysis results.