Description: 现有一个信号：x(n)=1+cos(π*n/4)+ cos(2*π*n/3)设计及各种数字滤波器以达下列目的：
低通滤波器，滤除cos(2*π*n/3) 的成分，即想保留的成分为1+cos(π*n/4)
高通滤波器，滤除1+cos(π*n/4) 的成分，即想保留的成分为cos(2*π*n/3)
带通滤波器，滤除1+cos(2*π*n/3) 的成分，即想保留的成分为cos(π*n/4)
带阻滤波器，滤除cos(π*n/4) 的成分，即想保留的成分为1+cos(2*π*n/3)
1. 用MATLAB命令butterord求除滤波器的阶数,用命令butter设计各滤波器；画出滤波器幅度和相频相应 取各滤波器的系统函数H(z)。
-an existing signal : x (n) = a cos (* n/4) cos (2** n/3) design and digital filter to achieve the following objectives : low-pass filter, filter cos (2** n/3) the ingredients that want to retain an element of a cos (* n/4) high-pass filter, a filter cos (* n/4) components, namely to retain the element of cos (2** n/3) band-pass filter , a filter cos (2** n/3) components, namely to retain the element of cos (* n/4) band stop filter, the filter cos (* n/4) components, namely to retain the ingredients for a cos ( 2** n/3) 1. MATLAB order butterord except for the band Filter, using the order of the filter design butter; paint Filter magnitude and phase frequency of the corresponding filter system function H (z). Platform: |
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Author:殷开 |
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Description: IIR-butter低通滤波器设计，数字信号处理专业学生的课程设计。-IIR-butter low-pass filter design, digital signal processing professional students in curriculum design. Platform: |
Size: 30720 |
Author:qjyong |
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Description: 关于Digital Signal Process中FIR ， IIR滤波器的设计与实现-on Digital Signal Process FIR. IIR Filter Design and Implementation Platform: |
Size: 1024 |
Author:Shao Dan |
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Description: FIR 有限脉冲数字滤波器设计。另外还有无IIR设计的程序，欢迎来函切磋。-FIR digital filter design. Another non-IIR design process, welcomed the letter and discussions. Platform: |
Size: 38912 |
Author:安庆友 |
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Description: IIR数字滤波器设计。其中涉及到Matlab软件中IIR的参数设计及CCS中的软件仿真及硬件仿真程序-IIR digital filter design. Involving IIR Matlab software design and the parameters of the CCS software simulation and hardware simulation program Platform: |
Size: 266240 |
Author:郑茜 |
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Description: Matlab函数对数字滤波器IIR进行设计和实现，同时也加深我们对数字滤波器的常用指标和设计过程的理解 word文档-Matlab function of IIR digital filter design and realization also deepen our understanding of the common digital filter design process indicators and understanding word document Platform: |
Size: 16384 |
Author:tintin |
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Description: 用双线性变换法设计IIR数字滤波器
滤波就是将外界干扰的不需要的频率滤除掉，一面影响要测试数据的结果。比如如果是心电波的话，如果这是外界有很大的噪声干扰，滤波就是把不必要的信号给抑制掉，以便对心跳的正常测试。通过图比较，滤波后的明显比之前的要平滑，就是滤去干扰噪声的结果。采样间隔对实验有影响，取的过大会导致频率混叠。-Bilinear transformation method using digital filter IIR filter design is to outside interference filter out unwanted frequencies, while the impact to test data results. For example, if it is so heart waves, if this is a great noise outside interference, filtering is unnecessary signal out to the curb in order to test the normal heartbeat. Through chart comparison, after filtering than before to smooth the noise interference is the result of least squares. Sampling interval of the experiment affect take-off frequency of the General Assembly leading to aliasing. Platform: |
Size: 1024 |
Author:果法 |
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Description: 用Matlab进行数字信号处理的IIR滤波器的设计方案与步骤-Using Matlab to carry out digital signal processing of the IIR filter design programs and procedures Platform: |
Size: 423936 |
Author:liqingnan |
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Description: 用双线性变换设计数字滤波器，里面附有详细的实验说明和matlab运行通过的实验源码和对实验结果的分析-Using bilinear transform digital filter design, which experiments with detailed descriptions and matlab source code to run through the experiment and the analysis of experimental results Platform: |
Size: 32768 |
Author: 甘小华 |
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Description: 信号与系统基础知识包括连续信号与模型、离散信号与模型；常用信号变换包括Z变换、Chirp Z变换、FFT变换、DCT变换和Hilbert变换等；离散系统结构包括IIR、fir和Lattice结构；IIR滤波器设计包括模拟和数字低通、高-Basic knowledge of signals and systems, including continuous signal with the model, discrete signals and model common signal, including Z Transform Transform, Chirp Z Transform, FFT transform, DCT transform and Hilbert transform, etc. discrete system architecture including IIR, fir and Lattice structure IIR filter design, including analog and digital low-pass, high- Platform: |
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Author:东 |
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Description: 这是本人夏季学期的课程设计：模拟信号数字化滤波处理的计算仿真-Chebyshev I型低通滤波，对模拟信号进行数字化滤波处理。根据数字滤波器的性能指标，计算出Chebyshev1型低通IIR数字滤波器的系统函数，画出数字滤波器的频率响应曲线，给出Chebyshev1型低通IIR数字滤波器的设计结果。-This is my summer semester of the curriculum design: analog signal processing digital simulation filtering-Chebyshev I-type low-pass filtering, on the analog signal to digital filter processing. Digital filter in accordance with performance indicators, calculated Chebyshev1-type low-pass IIR digital filter systems function, to draw the digital filter frequency response curve, give Chebyshev1 type low-pass IIR digital filter design. Platform: |
Size: 2048 |
Author:阿祥古 |
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Description: 数字滤波器在数字信号处理领域中已经得到广泛应用,MATLAB 软件的频谱分析和滤波器的分析设
计功能很强,从而使数字信号处理变得十分简单。利用MATLAB 的数字滤波器设计工具箱可以快速有效地设计各种数字滤波器,设计简单方便。介绍了IIR 数字滤波器的设计原理、步骤以及在MATLAB 中的实现。-Digital filter in the field of digital signal processing has been widely used, MATLAB software for spectrum analysis and filter analysis and design features strong, so that digital signal processing have become very easy. MATLAB using the Digital Filter Design Toolbox can quickly and efficiently design of digital filters, design is simple and convenient. Introduction of the IIR digital filter design principles, steps and in the implementation of MATLAB. Platform: |
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Author:董裕磊 |
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Description: IIR 数字滤波器设计：模拟低通巴特沃思滤波器、模拟低通切比雪夫1型滤波器、模拟低通切比雪夫2型滤波器、模拟椭圆低通滤波器-IIR Digital Filter Design: Analog low-pass Butterworth filter, analog low-pass Chebyshev Type 1 filter, analog low-pass Chebyshev type 2 filter, analog elliptical low-pass filter Platform: |
Size: 2048 |
Author:menger |
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Description: 数字滤波器的设计及性能比较
用三种方法设计FIR滤波器：窗口法、最大最小误差法、频率采样法；用两种方法设计IIR滤波器：冲激响应不变法、双线性变换法。很全的matlab滤波器程序！- Digital filter design and performance comparison of three methods to use FIR filter design: the window method, the largest minimum error method, frequency sampling method two ways IIR filter design: impulse response of the same law, two and transform. Is the whole process of the matlab filter! Platform: |
Size: 1024 |
Author:洪耀辉 |
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Description: 摘 要:阐述了数字滤波器的设计方法 ,分析了运用 MATLAB软件进行 IIR和 FIR数字滤波器设计的过程。 研究
与实践表明:教学中 ,运用 MATLAB软件进行数字滤波器设计及实现 ,可增强学生的感性认识 ,加深对数字滤波器
设计基本原理的理解 ,改善教学效果。-Abstract: This paper describes the design of digital filter methods, analysis of the use of MATLAB software IIR and FIR digital filter design process. Research and practice shows that: teaching, the use of MATLAB software digital filter design and realization of perceptual knowledge to enhance students understanding of the basic principles of digital filter design understanding, enhance the effectiveness of teaching. Platform: |
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Author:xxxmmmccc |
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Description: IIR数字滤波器设计:用双线变化法及脉冲响应不变法，用Matlab编程，设计低通、高通、带通IIR数字滤波器-IIR Digital Filter Design: A two-constant changes in law and the impulse response method, using Matlab programming, designing low-pass, high pass, band-pass IIR digital filter Platform: |
Size: 2048 |
Author:田华梅 |
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Description: 本文介绍了数字信号处理中各种算法基本原理，包括Z 变换、DFT 变换及其快速
算法FFT 等信号变换算法和包括IIR 与FIR 数字滤波器的设计与实现，详细论述了利用
MATLAB 软件对信号变换和设计数字滤波器的原理﹑ 步骤和实现方法，并给出了基于
MATLAB 的模拟与仿真。文章最后给出了实验结果，并就其结果做了进一步的解释和说明。
关键词：Z 变换，离散傅立叶变换DFT，数字滤波器，系统结构仿真
-This article describes a variety of digital signal processing algorithms in the basic principles, including the Z transform, DFT transform and its fast algorithm FFT and other signal transform algorithm and including IIR and FIR digital filter design and implementation, discussed in detail by using MATLAB software, the signal transformation The principle and design of digital filters ﹑ steps and implementations, and gives MATLAB-based simulation and emulation. Article Finally, the experimental results and the results made on the further explanation and clarification. Key words: Z transform, discrete Fourier transform DFT, digital filter, system architecture simulation Platform: |
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Author:zhd |
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Description: IIR滤波器设计，用matlab语言设计一个矩形二维IIR低通数字滤波器程序-IIR filter design with matlab language to design a rectangular two-dimensional low-pass digital IIR filter program
Platform: |
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Author:于 |
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Description: 1、不同阶次模拟巴特沃兹滤波器的频率响应
2、根据模拟滤波器指标，设计低通巴特沃兹滤波器
要求通带截止频率 fp = 5kHz, 通带最大衰减 ɑp =2dB， 阻带截止频率 fs= 12kHz, 阻
带最小衰减ɑs =30dB,按照上述指标设计巴特沃兹低通滤波器。
3、给定模拟滤波器，按照不同采样频率设计数字 IIR，观察采样频率对设计结果的影响
已知模拟滤波器传输函数 H(s)为
2
0.5012
( )
0.6449 0.7079
H s
s s
=
+ +
按照不同采样频率 Fs1=1Hz, Fs2=10Hz 使用脉冲响应不变法将 H(s)转换为 H(z)数字
IIR 滤波器。观察不同采样频率设计得到的数字 IIR 的差异。
4、给定数字 IIR 指标，用脉冲响应不变法设计 IIR。
数字低通滤波器的指标为: 0.2 , 1 , 0.3 , 15
p p s s
ω π α ω π α = = = = dB dB ,使用巴特沃
兹滤波器设计数字 IIR。比较采样频率 Fs=1， 2 时设计过程中的模拟滤波器，数字滤波
器的变化。
5、用双线性变换法设计 IIR，并同脉冲响应不变法比较设计的结果。数字滤波器指标要
求如下
0.2 , 1 , 0.3 , 15
p p s s
ω π α ω π α = = = = dB dB(1.Grasp the impulse response method and bilinear transformation design IIR filter principle and specific design methods, familiar with double
A computer program for designing lowpass, bandpass and highpass IIR digital filters by linear design;
2 . familiar with the design of analog Butterworth filter, master impulse response method and bilinear transformation method to design digital IIR
Filter method) Platform: |
Size: 4096 |
Author:花祭嘉音
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Description: 模拟低通滤波器的巴特沃思逼近、切比雪夫型逼近方法；从模拟低通到模拟高通、带通、带阻的频率变换法；从模拟滤波器到数字滤波器的脉冲响应不变法、双线性变换法的基本概念、基本理论和基本方法。
巴特沃思、切比雪夫模拟低通滤波器的设计方法；利用模拟域频率变换设计模拟高通、带通、带阻滤波器的方法。
利用脉冲响应不变法、双线性变换法设计数字滤波器的基本方法；能熟练设计巴特沃思、切比雪夫低通、带通、高通、带阻数字滤波器。
利用 MATLAB 直接进行各类数字滤波器的设计方法。(The basic concepts, theories and methods of Butterworth approximation and Chebyshev approximation of analog low-pass filter, frequency conversion from analog low-pass to analog high pass, band-pass and band stop, impulse response immutability from analog filter to digital filter and bilinear transformation.
Butterworth and Chebyshev design method of analog low-pass filter; design method of analog high pass, band-pass and band stop filter by using analog domain frequency conversion.
The basic method of designing digital filter by using impulse response invariant method and bilinear transformation method; be able to skillfully design Butterworth, Chebyshev low-pass, band-pass, high pass and band stop digital filter.
Matlab is used to design all kinds of digital filters directly.) Platform: |
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Author:无_kkx |
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Search - matlab filter digital iir design