摘要
分析了嵌入式系统中信号采样,对信号进行滤波处理。讨论了滤波器在实际应用里的作用,如何削减干扰信号,增强有用信号。并详细介绍了数字滤波器的特点、分类和数字滤波器的设计方法。在线性时不变系统中,用Z变换来对系统进行滤波、补偿或控制,能很好地复制时域的问题。
this paper focus on the signal processing, analyzed the signal in the embedded system. Above all discuss how the filter impacts the original signal which has much noise. To cut the noise and to emphasize the useful signal is exactly needed to do. Then with listing the types of filters, they have different feature and they are used in different application. In the linear time-invariant system, differential equation is introduced to design these filter to solve the problem in time domain.
出处
《微型电脑应用》
2012年第8期38-40,共3页
Microcomputer Applications
