【摘要】 为了提高信噪比 ,以往大都设法滤除噪声。根据随机共振理论 ,本文对用添加噪声来提高测量信号信噪比的方法进行了初步的尝试 ,并将此方法应用于强噪声背景中微弱信号的检测 ,得出了一些有意义的初步结果。更多还原

【Abstract】 Noise is usually filtered for getting a high signal noise ratio(SNR).Here, based on the stochastic resonance theory, a primary study is made at raising SNR by adding noise for detecting a weak signal that exists in a stronger noise background. The results obtained are reasonable and referable.更多还原