【摘要】 微弱信号检测就是利用近代电子学和信号处理方法从噪声中提取有用信号,其关键在于抑制噪声,恢复、增加和提取有用信号。本文将从信号处理系统信噪比的改善来简单地论述微弱信号检测的原理,重点介绍了用相关检测法和取样积分法检测微弱信号的原理、方法和应用。更多还原

【Abstract】 Weak signal detection is to take advantage of modern electronics study and signal processing method to extract useful signals from noises, the key lies in noise suppression/restoration and useful sig- nal amplification/extraction. This paper briefly talks about weak signal extraction theory by improving sig- nal noise ratio, focuses on introduction of theory, method and application of related detection method and sampling conventional techniques in detection of weak signals.更多还原