多站点低空防御系统关键技术研究

Research on the Key Technologies of Multi-stationLow-altitude Defense System

针对多站点低空防御系统中主动雷达虚警率高、近距离探测盲区大且无法分辨静止目标等问题,研究了无线电频谱探测定位、多站雷达数据融合等关键技术,提出了一种系统数据融合策略。首先利用无线电频谱探测设备测向数据约束雷达扫描范围降低雷达虚警率,然后采用多站无线电频谱探测定位技术解决雷达近距离及静止目标的探测盲区,最后借鉴了K均值(K-means)算法,对多站探测目标进行聚类融合。该系统数据融合策略被应用于某大型水电站低空防御系统,测试结果验证了该策略的有效性。

Aiming at the problems of high false alarm rate,large blind spot in close range and inability to distinguish stationary target in active radar of multi-station low-altitude defense system,the key technologies of radio detection positioning and data fusion of multistation are researched,and a data integration strategy is proposed.Firstly,the direction data of radio spectrum detection equipment is used to reduce the radar false alarm rate by restricting the radar scan range.Secondly,the multi-station radio spectrum detection and positioning technology is used to solve the detection blind spots of close range and stationary target of the radar.Finally,the K-means algorithm is improved to cluster multi-station detection targets.The data integration strategy is applied to the low-altitude defense system of a large hydropower station.Test results verify the effectiveness of the strategy.