摘要
实际工程中,被测量信号往往被大量的背景噪声干扰所淹没,因此常规的信号检测和处理方法无能为力。通过研究非线性双稳态系统中随机共振的基本理论,利用SIMULINK的仿真功能对上述非线性双稳态系统进行模拟实验与仿真,研究该系统与输入信号之间的变化规律,并验证其对提高信噪比的有效性。
In the practical project, the signal detected is submerg^ed by numerous background noises, therefore normal detecting and processing methods are useless. Through the study on basic theory of stochastic resonance in non-linear bi-stable system, based on the simulation function of SIMULINK, an experiment and simulation has been carried out to the non-linear bi-stable system, studies on the variation between the system and the input signal, and its effectiveness in improving signal to noise ratio has been validated.
出处
《信息技术》
2010年第1期121-122,144,共3页
Information Technology
关键词
双稳态系统
随机共振
信噪比
bi-stable system
stochastic resonance
SNR
