摘要
为解决传统雷达信号识别方法难以达到实时性的困难,提出了一种雷达信号快速识别算法。该算法基于信号的非周期自相关函数提取了映射信号带宽和频率变化率的2个特征参数,实现了对4种雷达信号的类型识别。仿真和硬件测试结果表明,该算法能在低信噪比下实现对雷达信号的全概率识别,识别时间小于0.8ms。算法适合硬件高速实时实现,具有一定的工程应用价值。
To overcome the difficulty of traditional radar signals identification in read-time processing, a fast method for identification of radar signads is proposed. This method extracts two characteristic parameters mapping the bandwidth and frequency of radar signals based on the aperiodic autocorrelation function. The fast identification of four modulatio56n types of radar signals is implemented according to the two characteristic parameters. Simulation and hardware tests show that this method has better identification accuracy rate under lower signad to noise ratio （ SNR ）. The identification time is less than 0.8 ms. This method is suitable for high speed implementation in the radar digital receiver.
出处
《电讯技术》
北大核心
2009年第2期5-8,共4页
Telecommunication Engineering
基金
军事电子预研资助项目
关键词
雷达信号
特征参数
调制识别
非周期自相关
radar signal
characteristic parameters
modulation identification
aperiodic autocorrelation
