基于FPGA的程控滤波器设计与实现  

The Design And Realization of Programmable Filter Based on FPGA

作　　者：潘秀琴[1] 李元[1] 卢勇[1] 李瑞翔[1] 张军[1] 张洪[1] 赵悦[1] 

机构地区：[1]中央民族大学信息工程学院,北京100081

出　　处：《微计算机信息》2010年第11期124-126,共3页Control & Automation

摘　　要：设计一个由现场可编程门阵列(FPGA)控制的滤波器。该滤波器主要由3个模块组成:前置放大、滤波电路、FPGA显示与控制电路等利用FPGA作为放大器及程控滤波器电路中继电器组的控制模块,实现了可编程放大参数的设置以及低通和高通滤波截止频率的数字控制。基于FPGA技术,使得该系统具有抗干扰能力强,可靠性好等优点。对系统进行了测试,结果表明符合设计要求。A kind of designing schem for the filter controlled by Field-Programmable Gate Array （FPGA） would be proposed in this paper. The given filter could be composed by 3 modules ： a prime amplifier , a filter and the controlling circuit based on FPGA. On the basis of digital controlling, The function for the parameter setting and displaying of the cut-off frequency to low and high pass filter would be realized. Because of the FPGA, the strong anti-interference ability and Reliability would be owned by the given-controlled programmer. The testing results illustrated that the design would be satisfied.

关 键 词：FPGA 滤波器 程控 放大电路 

分 类 号：TP271.82[自动化与计算机技术—检测技术与自动化装置]