电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2011年
14期
130-134
,共5页
阿依夏木·力提甫%赵惠昌%王丹琦
阿依夏木·力提甫%趙惠昌%王丹琦
아의하목·력제보%조혜창%왕단기
低通滤波器%有限冲激响应%现场可编程门阵列(FPGA)%CSD算法%MATLAB
低通濾波器%有限遲激響應%現場可編程門陣列(FPGA)%CSD算法%MATLAB
저통려파기%유한충격향응%현장가편정문진렬(FPGA)%CSD산법%MATLAB
low-pass filters%finite impulse response%Field Programmable Gate Array%CSD algorithm%MATLAB
充分利用有限冲击响应数字滤波器（Finite Impulse Response digital filter,FIR）系数的对称特性,借助于MAT-LAB语言和现场可编程门阵列（FPGA）实现了一种高效的低通滤波器。设计过程中通过简化的VHDL语言编写程序,实现了加减乘法运算,使用优化的CSD编码技术缩短了乘法器的运算时间,采用FPGA滤波器芯片和QuartusⅡ软件搭建仿真电路、用Matlab软件进行理论验证。实验结果基本符合理论值,验证了此种滤波器的实现方法简单,计算速度快,节省硬件资源,抗干扰能力强,灵活,性能优于传统的FIR滤波器。
充分利用有限遲擊響應數字濾波器（Finite Impulse Response digital filter,FIR）繫數的對稱特性,藉助于MAT-LAB語言和現場可編程門陣列（FPGA）實現瞭一種高效的低通濾波器。設計過程中通過簡化的VHDL語言編寫程序,實現瞭加減乘法運算,使用優化的CSD編碼技術縮短瞭乘法器的運算時間,採用FPGA濾波器芯片和QuartusⅡ軟件搭建倣真電路、用Matlab軟件進行理論驗證。實驗結果基本符閤理論值,驗證瞭此種濾波器的實現方法簡單,計算速度快,節省硬件資源,抗榦擾能力彊,靈活,性能優于傳統的FIR濾波器。
충분이용유한충격향응수자려파기（Finite Impulse Response digital filter,FIR）계수적대칭특성,차조우MAT-LAB어언화현장가편정문진렬（FPGA）실현료일충고효적저통려파기。설계과정중통과간화적VHDL어언편사정서,실현료가감승법운산,사용우화적CSD편마기술축단료승법기적운산시간,채용FPGA려파기심편화QuartusⅡ연건탑건방진전로、용Matlab연건진행이론험증。실험결과기본부합이론치,험증료차충려파기적실현방법간단,계산속도쾌,절성경건자원,항간우능력강,령활,성능우우전통적FIR려파기。
This paper makes full use of the coefficient＇s symmetric character of the Finite Impulse Response digital filter,schemed out a sort of high efficiency low-pass filter by the means of MATLAB language and FPGA（Field Programmable Gate Arrays）.In the process of design,the addition,subtraction,and multiplication operations accomplished by using simple VHDL language,the optimized CSD（canonic signed digit） encoding technology reduced the operation time of multiplication,simulated with the FPGA chip,Quartus II software.The graphical comparison and theoretical analysis were finished by MATLAB software.The simulation results basically accord with the theoretical estimation,the outcome of the experiment shows that this technique has such advantages as simple and flexible way of design,strong anti-jamming capability,fast operation speed and economizing of devices.Its performance is much better than the conventional methods.
