雷达不明空情识别方法

Identify Method for Radar Unknown Aerial Targets

首先,分析了雷达不明空情的特征与威胁;然后,以边查证、边报告为原则,给出了其一般识别过程;最后,分析了窄带信号识别、雷达图像识别、航迹欺骗干扰识别及不明空情知识图谱4项雷达不明空情识别关键技术。针对不同体制雷达回波特征、不同雷达图像的差异,通过自学习和调整不断提高识别率;根据干扰信号在时域、频域等方面的特征,提出了通过多雷达综合印证识别航迹欺骗干扰;通过示例说明了利用知识图谱识别空飘气球的过程。提出的多项识别方法对雷达不明空情识别具有较好的指导和参考价值。

Firstly, the characters and threat of the radar unknown aerial targets are analyzed. Then, based on the principle of reporting while reconnaissance, the general identify process is presented. Finally, four key technologies for the radar unknown aerial target identification are analyzed, including narrow band signal identification, radar image identification, track deception jamming identification and the knowledge graph of unknown air targets. Aimed at the echo characters of different system′s radar, the differences among different radar images, the identify rate is constantly enhanced by self-studies and adjustments. According to the jamming signals' characters on the time domain and the frequency domain, the track deception jamming is identified by integrated verification among multi radars. The identification process of the aerial flying balloon through the knowledge graph is illuminated by the example. The proposed multi identification methods have better guidance and reference value to radar unknown aerial target identification.