基于FPGA的切比雪夫梳状补偿滤波器

量子电子学报 ›› 2020, Vol. 37 ›› Issue (1): 15-21.

基于FPGA的切比雪夫梳状补偿滤波器

陈志,武斌

天津城建大学计算机与信息工程学院，天津 300384

收稿日期:2019-07-19 修回日期:2019-07-27 出版日期:2020-01-28 发布日期:2020-01-28
通讯作者: 武斌（1966-），天津人，硕士，教授，研究生导师，主要从事嵌入式系统及FPGA逻辑前段研究和智能信息处理等方面的研究 E-mail:wubin@tjuci.edu.cn
作者简介:陈志（1995-），安徽人，研究生，主要从事数字图像处理在测控中的应用等方面的研究。 E-mail：1575662520@qq.com
基金资助:
Supported by National High Technology Research and Development Program of China (国家高技术研究发展计划(863计划), 2015BAF09B02-3)

Chebyshev comb compensation filter based on FPGA

CHEN Zhi , WU Bin

School of Computer and Information Engineering, Tianjin Chengjian University, Tianjin 300384, China

Received:2019-07-19 Revised:2019-07-27 Published:2020-01-28 Online:2020-01-28

摘要/Abstract

摘要： 积分梳状（CIC）滤波器因结构简单和良好的抗混叠性，被应用于各种信号处理系统中。针对传统CIC滤波器通带失真较大和阻带衰减较小的问题，通过分析CIC滤波器的特点，提出了一种切比雪夫梳状补偿滤波器（C-CIC）。MatLab仿真结果表明，与传统CIC、内插二阶多项式级联积分梳状滤波器（ISOP-CIC）和余弦积分梳状滤波器（CIC-COSINE）相比，当CIC级联的级数相同时，C-CIC滤波器在频率fc处通带幅值的失真和频率fa处的阻带衰减都得到了较大改善。经过Quartus仿真得知，达到相同的幅频特性时，C-CIC滤波器消耗的片上资源少于ISOP-CIC和CIC-COSINE滤波器。C-CIC滤波器可以更好地应用于波长调制-可调谐二极管激光吸收光谱（TDLAS）系统中。

关键词:

"> 光谱学；切比雪夫梳状补偿滤波器；窗函数；积分梳状滤波器；FPGA

Abstract: For the advantage of simple structure and good anti-aliasing, Cascaded integrator comb (CIC) filter has been widely used in a variety of signal processing systems. Aiming at the problem of large passband distortion and small stopband attenuation of the traditional CIC filter, a Chebyshev cascade integral comb ( C-CIC ) filter is proposed by analyzing the characteristics of CIC filter. The simulation results using MatLab show that compared with the traditional CIC, interpolated second-order polynomial cascade integral comb filter (ISOP-CIC) and cosine integral comb filter（CIC-COSINE）, the C-CIC filter has a large improvement in passband distortion at fc and stopband attenuation at fa when the number of CIC cascades is the same. According to the Quartus simulation, the C-CIC filter consumes less on-chip resources than the ISOP-CIC and CIC-COSINE filters when the same amplitude-frequency characteristics are achieved. It is indicated that the C-CIC filter can be better used in tunable diode laser absorption spectrometer （TDLAS） system.

Key words: spectroscopy, Chebyshev comb compensation filter, windows function, cascaded integrator comb filter, FPGA

中图分类号:

TN713

陈志武斌. 基于FPGA的切比雪夫梳状补偿滤波器[J]. 量子电子学报, 2020, 37(1): 15-21.

CHEN Zhi , WU Bin. Chebyshev comb compensation filter based on FPGA[J]. Chinese Journal of Quantum Electronics, 2020, 37(1): 15-21.

参考文献

[1] Xing Kunming, Yang Ke, Zhang Long,et al. Simultaneous detection of CO and CO2 in cigarette mainstream smoke based on TDLAS technology[J]. Chinese Journal of Quantum Electronics (量子电子学报), 2017, 34(1): 81-87(in Chinese). [2] Dolecek G J, Baez R G, Salgado G M, et al. Novel multiplierless wideband comb compensator with high compensation capability[J]. Circuits, Systems, and Signal Processing, 2016, 36(5): 2031-2049. [3] Dolecek G J, Harris F. Design of wideband CIC compensator filter for a digital IF receiver[J]. Digital Signal Processing, 2009, 19(5): 827-837. [4] Dou Jianhua, Liang Hongsong, Hu Min, et al. Improved design of modified ClC decimator filters [J]. Systems Engineering and Electronics(系统工程与电子技术), 2008, 30(5): 984-986(in Chinese). [5] Yang Xuan, Lei Jianming, Zou Xuecheng. A sine-cosine-like CIC filter [J]. Signal Processing(信号处理), 2010, 26(12): 1782-1786(in Chinese). [6] Stosic B P, Pavlovic V D. Design of selective CIC filter functions[J]. International Journal of Electronics and Communications, 2014, 68(12): 1231-1233. [7] Liu Tao, Zhan Yafeng, Lu Jianhua. Improved high performance cascaded integrator comb filter [J]. Journal of Tsinghua University(Science and Technology) (清华大学学报(自然科学版)), 2009, 49(1): 65-68(in Chinese). [8] Zhang Lei, Di Jianguo, Wu Shuting, et al. The designing and the simulation of the SCC＿CIC compensation filter [J]. Acta Electronica Sinica(电子学报), 2018, 46(8): 1997-2003(in Chinese). [9] Li Yuan， Wang Haiyun. A method of dielectric loss angle measurement based on Nuttall window with three spectral lines interpolation [J]. Electrical Measurement and Instrumentation(电测与仪表), 2018, 55(17): 15-20(in Chinese). [10] Tian Wenbo, Yu Jianming, Ma Xiaojin, et al. Estimation of harmonics parameters based on Dolph—Chebyshev window interpolation FFT algorithm [J]. Proceedings of the CSU—EPSA(电力系统及其自动化学报), 2014, 26(2): 50-54(in Chinese). [11] Wan Quan, Gao Yunpen, Luo Zhikun, et al. Dielectric loss factor measurement based on Nuttall window spectral correction [J]. Chinese Journal of Scientific Instrument(仪器仪表学报), 2010, 31(1): 15-20(in Chinese). [12] Li Xiang，Wan Dongyi. Research on decimation technique of digital downconversion [J]. Journal of University of Electronic Science and Technology of China(电子科技大学学报), 2006, 35(4): 471-473(in Chinese). [13] Dolecek G J, Baez J R G, Laddomada M. Design of efficient multiplierless modified cosine-based comb decimation filters: Analysis and implementation[J]. IEEE Transactions on Circuits and Systems I: Regular Papers, 2017, 64(5): 1051-1063.