【摘要】 基于随机共振理论提出了一种简便、有效地检测弱信号的方法。在内噪声协同作用下 ,通过调节输入噪声信号的大小能较好地提高系统输出信号的信噪比 ,从而实现检测背景噪声很强的弱信号的目的。应用于模拟信号和实验信号的结果证明了方法是可行的更多还原

【Abstract】 Based on the theory of stochastic resonance (SR), a simple and effective algorithm for the detection of weak signal was proposed. It can greatly enhance the signal to noise ratio (SNR) of the output signal by adjusting the amplitude of input signal. With the cooperative of the internal noise, the weak signal detection can be realized. By using the method in the detection of simulated and experimental signals, the results had shown that the method was reasonable.更多还原