摘要
FIR数字滤波器本质上是一种线性卷积的运算,当数字滤波器的阶次N很大时,计算量很大,计算速度很慢,达不到系统对实时性的要求。文章介绍了一种数字信号处理算法,该算法将线性卷积运算转换成加法运算,利用加法运算进行求解,避免了数据堆积,加快了运算速度,从而使数字滤波器处理过程实时、快速。
FIR digital filter is essentially a kind of linear convolution operation. When the step N of digital filter is very large, the calculation is also troublesome and the system cannot achieve the real - time request. This essay introduces a kind of computerization of digital signal processing. It transforms linear convolution operation to addition operation. By using the addition operation,it can avoid the data piling up and speed up the operating speed, make processing of digital filter real- time and quick.
出处
《现代电子技术》
2006年第21期140-141,共2页
Modern Electronics Technique
