摘要
介绍了一种基于概率统计和信息流分析提取的改进雷达信号分选算法。主要讨论了这种算法在雷达信号分选中的应用,提出了针对特殊雷达环境的综合分选算法,通过大量实验验证了这种方法的可行性。首先讨论了信号预分选器的方案、数学模型及相关理论,验证了系统的可行性。在实现上,通过硬件电路完成对信号的采样、缓冲和滤波,也实现了其它逻辑电路。软件上通过分选算法的改进,提高了系统的性能。该分选系统可以处理常规信号、参差信号、捷变频信号、抖动信号、捷变频加参差信号、捷变频加抖动信号等多种信号类型。
In this paper an improved signal sorting method based on the probability statistics and the analysis and extraction of information stream is introduced and its application in radar signal sorting is mainly discussed. A synthetical soring method for special radar signals is described. The feasibility of this method is verified through lots of experiments. First a mathematical model and associated theory of the signal sorting system are studied to verify the the feasibility of this system. Signal sampling, buffering, filtering and other logic circuits are realized by designing the hardware circuits. The system performance is improved by the improvement of software algorithm. This signal sorting system can process various radar signals including normal signal, staggered PRI signal, frequency-agile signal, dither signal, frequency-agile signal with staggered PRI signal, frequency-agile signal with dither signal.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2003年第9期1079-1083,共5页
Systems Engineering and Electronics
