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为定量分析和评估机载红外搜索跟踪系统(IRST)牵引探测模式对雷达探测效能的影响,以雷达探测效能概率作为评估指标,模拟IRST牵引雷达探测的过程,建立基于多波位搜索的牵引成功概率模型,确定满足一定牵引成功概率下的雷达搜索范围,并根据特定的目标特性推导雷达探测效能概率表达式。仿真结果表明,该模式利用红外的高精度角度信息进行牵引,极大缩小了雷达的搜索区域和搜索时间,加快雷达对目标的截获过程,并利用波束驻留时间的增加提高了雷达的发现概率,提升了雷达的探测效能。
In order to quantitatively analyze and evaluate the effect of IRST traction detection mode on radar detection performance, the radar detection efficiency probability is taken as the evaluation index to simulate the process of IRST traction radar detection and to establish the traction success based on multi-bit search Probabilistic model to determine the radar search range to meet the probability of a certain success probability of traction and to derive the probability of radar detection performance probability expression based on the specific target characteristics. The simulation results show that this model uses the infrared high-precision angle information to tow, which greatly reduces the search area and search time of the radar, speeds up the radar’s interception of the target, and increases the probability of finding the radar by increasing the dwell time , Improve the detection efficiency of the radar.