二进制信号传输中随机共振与线性方法的比较

Comparison Between Stochastic Resonance and Linear Methods in Binary Signal Transmission

利用随机共振的主动降噪的非线性动力学行为 ,提出了一种应用随机共振进行二进制信号传输方法 ,对该方法的合理性作了分析和证明 ,并就方法的性能与常规的线性方法进行了比较 ,设计了仿真试验 ,结果表明 ,低信噪比传输时 ,随机共振方法具有明显的优越性。本文的结论不仅扩大了随机共振的应用领域 ,而且为突破线性方法的极限提供了可能的途径。

Based on the non linear property of noise actively reducing of stochastic resonance, a new technique applying stochastic resonance (SR) to transit binary signal is proposed and validity of the method is analyzed and demonstrated, and comparison with the traditional linear methods is given. At last, the simulation experiment is designed, and the experimental results show that the technique based on SR has obvious superiority in low signal noise ratio ( R SN ) cases. The research enlarges the application scope of SR and provides an alternative way to exceed the upper limit for linear methods.