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基于FPGA的FIR滤波器设计与实现
引用本文:叶涛,管伟涛,曾培香.基于FPGA的FIR滤波器设计与实现[J].导航与控制,2013(2):54-57.
作者姓名:叶涛  管伟涛  曾培香
作者单位:北京航天控制仪器研究所;北京航天控制仪器研究所;北京航天控制仪器研究所
摘    要:本文根据激光陀螺仪信号的解调原理,提出了一种利用数字信号处理技术并采用FPGA实现的解调方法。分析了FIR滤波器的工作原理,根据激光陀螺仪对滤波器的要求,给出了由FPGA设计实现FIR滤波器的基本原理,并利用IP核实现了FIR滤波器,满足了激光陀螺仪的需求。通过在国产激光陀螺仪上的应用,验证了方案的正确性。通过对激光陀螺仪脉冲计数的高速采样并利用数字滤波器处理,可以有效的消除抖动引起的信号噪声,得到所需要的惯性信息。采用FPGA设计实现,可以提高运算速度,并且可以缩短数据采样的延时。

关 键 词:现场可编程门阵列  有限长单位冲激响应  数字滤波器  IP核

Design and Implementation of a FPGA-Based FIR Filter
YE Tao,GUAN Wei-tao and ZENG Pei-xiang.Design and Implementation of a FPGA-Based FIR Filter[J].Navigation and Control,2013(2):54-57.
Authors:YE Tao  GUAN Wei-tao and ZENG Pei-xiang
Institution:Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices;Beijing Institute of Aerospace Control Devices
Abstract:The theory of laser gyros demodulation is analyzed.A new method of demodulation by using digital signal processing technology and implemented by using FPGA is proposed.The work principle of FIR filter is analyzed in this paper. The design of FIR filter by using FPGA is based on the laser gyros demodulation.By using IP core designed the FIR filter in the FPGA.A new method of demodulation by using digital signal processing technology and implemented by FPGA is realized.By using on the laser gyros have been carried out to prove that the design is correct.By sampling with high speed and filtering the outputs of laser gyro,the method can remove the noise caused and get the inertial informantion.By using FPGA design can improve the operation speed and shorten the arrearage of the data sampling time.
Keywords:
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