摘要
在AD转换中利用32位ARM单片机的硬件乘法器实现低通滤波;此种滤波方法包括算法确定、定点表示方式以及如何利用乘法器实现;利用MATLAB对滤波系统进行仿真及对结果的分析表明:采用此种滤波算法优点是更大限度地降低系统开销,提高程序效率。
This system uses the hardware multiplier of ARM Microcontrollers to realize the low-pass filtering in the AD transform; This filter method includes the algorithm determination, fixed point expression and how to realize it by using the muhiplier ; merit of using this kind of filtering algorithm is that this method reduces the system expenses, Using MATLAB to simulate the filter system and analyzing the simulation result indicates that this method can raise the program efficiency and reduce the system expenses.
出处
《太原大学学报》
2008年第3期110-112,共3页
Journal of Taiyuan University
关键词
低通滤波
ARM
硬件乘法器
仿真
Low-pass filtering
ARM
hardware multiplier
simulation
