摘要
首先提出了利用混沌系统检测弱信号方法,实验结果证明了此方法的可行性。在此基础上,又提出将自相关方法和互相关方法分别与混沌系统相结合形成混合测量系统。经大量仿真实验证明此系统比前一种方法信噪比门限更低。可见混沌系统在弱信号检测方面的应用有望成为降低信噪比门限的有效方法之一。
*'A methed which can detect weak signals by means of chaotic system is fist presented,at the same time,the experiment results have proved this methed is feasible.On this basis, autocorrelation and crosscorrelation are respectively combined with the chaotic system to form mixed measuring systems.Finally,a lot of simulation experiment shows the signalnoise rate limits of two mixed system are lower than that of the former.So,the application of chaotic system in deteacting weak signal is hoped to become one of effective methods which have lower SNR limits.
出处
《传感器技术》
CSCD
北大核心
2003年第1期55-57,共3页
Journal of Transducer Technology
