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: |
Size: 46036 |
Author:殷开 |
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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: |
Size: 46080 |
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: 按照给定指标采用模拟低通滤波器（巴特沃思低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。-Indicators in accordance with a given analog low-pass filter (Butterworth low-pass) to approximate the ideal analog low-pass filter, and then through the bilinear transformation method of digitizing analog filters, the digital filter. Platform: |
Size: 2048 |
Author:李文嘉 |
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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: |
Size: 3072 |
Author:东 |
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Description: 利用MATLAB开发软件进行编程，实现了数字IIR低通滤波器的功能，程序直接可以运行！-Use MATLAB to develop software for programming, implementation of digital IIR low-pass filter function, the program can run directly! Platform: |
Size: 35840 |
Author:huangshuangping |
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Description: 自己做的：
（一）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅰ型低通数字滤波器，其采样频率Fs =8KHz，1DB通带边界频率为fp=2KHz。
（二）用双线性变换法设计并用实验系统实现一个三阶的契比雪夫Ⅱ型高通数字滤波器，其采样频率Fs =16KHz，阻带边界频率为fst =4KHz，As=20dB。
-(A) design using the bilinear transformation method and the experimental system of a third-order Chebyshev low-pass type Ⅰ digital filter, the sampling frequency Fs = 8KHz, 1DB passband boundary frequency is fp = 2KHz. (B) Bilinear transformation method used to design and use of the experimental system of a third-order Chebyshev type Ⅱ high-pass digital filter, the sampling frequency Fs = 16KHz, stopband boundary frequency fst = 4KHz, As = 20dB. Platform: |
Size: 14336 |
Author:lanseiboy |
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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: 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: 实现有限冲激响应滤波器的设计，按照给定指标采用模拟低通滤波器（巴特沃思低通或者切比雪夫低通）去逼近理想模拟低通滤波器 ，然后通过双线性变换法对模拟滤波器进行数字化，得到数字滤波器 。-To achieve the design of finite impulse response filter, according to a given target analog low-pass filter (Butterworth low-pass or a Chebyshev low-pass) to approximate the ideal analog low-pass filter, and then through the bilinear transformation method digitized analog filters, digital filters to be. Platform: |
Size: 1024 |
Author:zhang |
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Description: 设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.-Design a IIR digital low-pass filter, approaching a group of analog filters indicator parameters (pass-band cut-off frequency Wp = 2* pi* 2000rad/s, stop-band edge frequency Ws = 2* pi* 3000rad/s, pass-band ripple Rp = 3db, stop-band attenuation Rs = 15db, the sampling frequency f = 10000Hz) were used to change the impulse response method and bilinear transformation method for design, list and describe the transfer function of analog and digital filter amplitude-frequency and phase-frequency response curve. A filter was designed with the completion of the above-mentioned groups of a given signal filtering, to prove the effectiveness of filters and filter limit Platform: |
Size: 71680 |
Author:刘文珍 |
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Description: 设计巴特沃斯低通和高通IIR数字滤波器，得到二阶频率级联参数-Design of Butterworth low-pass and high-pass IIR digital filters, to be cascaded second-order frequency parameter Platform: |
Size: 1024 |
Author:陈峰 |
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Description: 用双线性Z变换法设计IIR巴特沃思型数字低通滤波器，能够实现心电信号中随机噪声的去除。-Bilinear Z transform with the design of IIR Butterworth digital low-pass filter, ECG can be achieved in the removal of random noise. Platform: |
Size: 1024 |
Author:li ting |
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Description: 本设计要求学生以MATLAB作为设计工具，利用脉冲响应不变法或双线性变换法的一种或两种进行设计IIR数字低通滤波器，并利用MATLAB中的仿真工具进行系统仿真。将利用上述两种不同的方法设计的FIR滤波器的结果进行比较，分析各设计方法的特点及优缺点。-This design requirements with MATLAB design tools as students, applies impulse response not reform or double linear transform method of one or two of digital design IIR low-pass filter, and the use of MATLAB simulation tools for system simulation. Will use the above two different methods of FIR filter design comparing the result, analyzing the features and advantages and disadvantages of the design method.
Platform: |
Size: 309248 |
Author:侯孟超 |
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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: |
Size: 8192 |
Author:无_kkx |
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