论文部分内容阅读
用混沌系统实现了对强噪声背景下周期信号的检测.仿真实验表明,由修正的Duffing-Holmes方程所构成的混沌系统对被噪声覆盖的微弱周期信号非常敏感,对噪声具有一定的“免疫力”,其信噪比工作下限可达到约-91dB.
The chaotic system is used to detect the periodic signal in the background of strong noise.The simulation results show that the chaotic system formed by the modified Duffing-Holmes equation is very sensitive to the weak period signal covered by noise and has certain immunity to noise ", Its signal to noise ratio work limit can reach about -91dB.