摘要
混沌信号具有噪声的统计特性,可在雷达系统中作为噪声源使用。设计了一种使用DSP产生混沌信号的电路,该电路主要由DSP、CPLD、FIFO以及DAC四种芯片组成,通过控制外部时钟,可以产生不同带宽的混沌信号,通过改变程序,可以产生混沌调幅、调频及调相信号。实验结果表明了该方法的有效性。
Chaotic signal has the same stochastic properties as noise, and can be used as noise source in radar systems. A chaotic signal generation DSP circuit, which consists of four main parts, i.e. DSP, CPLD, FIFO and DAC, is investigated. The band of the chaotic signal generated by this circuit is determined by the frequency of the clock. Chaotic AM, FM and PM signals can be generated. The experimental results show this method is efficient.
出处
《系统工程与电子技术》
EI
CSCD
北大核心
2006年第12期1956-1959,共4页
Systems Engineering and Electronics
关键词
混沌信号
信号发生器
脉冲压缩
chaotic signals signal generator
pulse compression
