微弱信号检测的原理及其实现

Study of the principle of weak signal detection and its implementation

对微弱信号检测的原理和方法进行了研究,探讨了一种用MSP430F149单片机实现数字相关器的方法,给出了系统的硬件结构及软件流程图。实验表明:用MSP430F149构成的微弱信号检测系统体积小、响应速度快,可测量低信噪比的信号。

In this paper,the principle and method of weak signal detection are researched and a method of implementing of digital corrector with MSP430F149is discussed,the hardware structure and software flow diagram are presented.The experiments have shown that the volume of weak signal detection system is composed of MSP430F149is smaller and the response is rapider,the system can be used for measuring signal with low signal-to-noise ratio.