摘要
在现代海战中 ,舰船大量使用无源箔条干扰。由于箔条云假目标漂移的速度和舰船运动速度相差不大 ,它对反舰导弹末制导雷达构成极大的威胁。本文利用舰船回波与箔条回波时域波形的区别 ,提出一种基于波形相似性和稳定性差异 ,通过构造平均相似值和峰距差两个波形特征随机变量 ,并分别取它们的样本均值和样本标准差作为识别特征的模式识别抗箔条实用新方法。外场试验考核和实验室仿真证明 ,该方法平均正确识别率达到 90 %以上 ,能满足实时性要求。
In modern sea-wars, ships use passive chaff jamming largely, which threaten the radar of anti-ship missile greatly because of the similarity of the velocity between the ship and the chaff. This paper presents a practical new pattern recognition method against chaff jamming, which is based on the difference in similarity and stability of the time-domain radar echoes between the ship and the chaff.By constructing two random variates, average similarity value and peak distance, the method uses their sample average and sample standard deviation as the recognition characteristics respectively. Experiment check and laboratory simulation show that this method has an average correctness rate over 90%, and meets the real-time demands, which at the same time demonstrate the effectiveness of the method.
出处
《现代雷达》
CSCD
北大核心
2000年第3期35-38,43,共5页
Modern Radar
