Design and implementation of FIR digital filter based on FPGA
Display & Image Processing|更新时间:2020-09-28
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Design and implementation of FIR digital filter based on FPGA
Chinese Journal of Liquid Crystals and DisplaysVol. 35, Issue 10, Pages: 1073-1078(2020)
作者机构:
1.中国科学院 长春光学精密机械与物理研究所, 吉林 长春 130033
2.中国科学院大学, 北京 100049
作者简介:
基金信息:
Key Science and Technoloy Foundation of Jilin Province, China(20190302086GX);Key Science and Technoloy Foundation of Jilin Province, China(20200403067SF)
Zhuo-da SONG, Zhi-qian WANG, Jian-rong LI, et al. Design and implementation of FIR digital filter based on FPGA[J]. Chinese journal of liquid crystals and displays, 2020, 35(10): 1073-1078.
DOI:
Zhuo-da SONG, Zhi-qian WANG, Jian-rong LI, et al. Design and implementation of FIR digital filter based on FPGA[J]. Chinese journal of liquid crystals and displays, 2020, 35(10): 1073-1078. DOI: 10.37188/YJYXS20203510.1073.
Design and implementation of FIR digital filter based on FPGA
A Finite Impulse Response(FIR) digital filter based on Field Programmable Gate Array(FPGA) is designed and implemented for signal processing in strain signal acquisition system. Firstly
based on MATLAB
Blackman window function is used to design a 15 order digital filter with 16 length
and the signal is composed of white Gaussian noise and sine wave with frequency of 2 kHz and 8 kHz. Then the 12 bit coefficients are quantized
and the coefficient file is imported into QuartusⅡ 13.1 software. Combining with the IP core of digital filter in FPGA
FIR digital filter is designed from top to bottom. Finally
it is simulated in Simulink environment. The results show that the mean square error of the synthesized signal decreases by 28.5% before and after filtering
which can improve the quality of low frequency signal and enhanced the function and integration of the strain signal acquisition system.
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