雷达信号分选实现的新方法  

New method for sorting radar signals

作　　者：刘旭波 司锡才[1] 

机构地区：[1]哈尔滨工程大学信息与通信工程学院,黑龙江哈尔滨150001

出　　处：《系统工程与电子技术》2010年第1期53-56,共4页Systems Engineering and Electronics

摘　　要：为解决反辐射导弹在高密度复杂电磁环境下的雷达信号分选问题,提出一种雷达信号分选实现的新方法。采用关联比较器进行雷达信号预分选,在主分选中,应用修正的脉冲重复间隔(pulse repetition interval,PRI)算法测量雷达信号PRI。在硬件实现上提出一种非均匀设定PRI箱宽度的方法,可节省大量的运算时间,提高系统实时性。实验结果表明,该分选方法具有快速准确的优点,既解决了以往直方图统计算法中的子谐波问题,又克服了传统PRI算法不能有效分选抖动脉冲序列的缺点。To solve the problem existing in the sorting of the radar-signals under the high-signal-density and complex electromagnetic environment in the ARM, a new method of achieving sorting the radar-signals is presented. Using the coherent processor to pre-sort radar signals. In the main sorting, the modified PRI transform is used to measure the PRI of radar-signals. In the hardware, a method called non-uniform setting the width of PRI-box is put forward, which can save much running time of the algorithm to enhance the real-time performance of the system. The experimental results show that this sorting method has the advantages of high speed and preciseness, which both solves the sub harmonic problem in the past histogram statistical method and overcomes shortcomings existing in the traditional PRI algorithm which cannot effectively sort jitter pulse trains.

关 键 词：雷达信号分选 关联比较器 修正的PRI变换 非均匀PRI箱宽度 

分 类 号：TN95[电子电信—信号与信息处理]