基于检测概率的雷达网协同干扰效果评估方法

Evaluation method of cooperative jamming effect on radar net based on detection probability

针对突防编队对抗雷达网的应用背景,以雷达网检测概率为评价指标,建立了应用于干扰机编队多样式协同压制雷达网的干扰效果评估模型。首先阐述了影响压制效果的时间、空域、频率和处理增益4个因素,据此计算了单部雷达在多样式干扰下的检测概率。然后结合雷达网判决中心的工作方式,将网内成员雷达在多样式干扰下的检测性能映射到计算全网的受干扰影响程度。最后充分利用干扰机编队的航线信息,提出以"电子对抗环境下雷达网判决中心对不同航线段内突防编队的联合检测概率下降程度的加权积分"为干扰效果评估函数,建立干扰机编队对雷达网的多样式干扰效果评估模型。仿真结果表明,该模型在雷达网干扰效果评估问题上具有很好的应用性,对合理分配干扰资源、提高干扰机编队的整体干扰效果也有一定的指导意义。

For the scene of cooperative penetration formation against radar net, an evaluation model of jam ming effectiveness is established by taking the detection probability of the netted radar fusion center as an evalu ation index. Firstly, four effective factors such as time, space, frequency and processing are described in order to calculate the detection probability of single radar when it is under the circumstance of muhi-pattern jamming. Then the influencing degree of the detection performance is extended to the radar net in combination with the Rank ＂K＂ principle of the fusion center. Lastly, for the scene of the cooperative penetration formation counter against radar net, the weighted integral probability of the detection center for detecting formation is brought for ward as a target function of jamming effectiveness, on the basis of taking the air route of the flight formations into consideration. The simulation result shows that the proposed method is practical and effective for evaluating the jamming effect, and is also valuable for improving the overall interference effect of the jammers formation in the electronic counter measure environment.