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型3阶切比雪夫1型高通滤波器的采样频率（Fs)为1200Hz,截至频率为200Hz-IIR-three bands a Chebyshev high-pass filter sampling frequency (Fs) 1200Hz. As the frequency of 200 Hz Platform: |
Size: 3072 |
Author: |
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Description: 数字信号课程设计，FIR的低通带通高通和IIR的低通带通高通滤波器的设计源程序以及主程序-Digital Signal curriculum design, FIR low-pass band-pass IIR high-pass and low-pass band-pass high-pass filter design, as well as the main program source code Platform: |
Size: 4096 |
Author:刘伟 |
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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: 先采集一单声道音频信号（.wav）并用WAVREAD文件采样读取，并对其进行频谱分析。分别用窗函数法和双线性变换法设计低通、高通、带通三种FIR滤波器和IIR滤波器。用M文件使信号通过滤波器并对输出信号进行时域和频域分析。-First acquisition of a mono audio signal (. Wav) files with sampling WAVREAD read, and their spectral analysis. Window function, respectively and the design of bilinear transform low-pass, high pass, band-pass FIR filters and IIR three filters. M document with the signal through the filter and the output signal in time domain and frequency domain analysis. Platform: |
Size: 197632 |
Author:宋立泉 |
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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: 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: 设计一个在0.45π处具有3dB截止角频率的一阶无限冲激响应低通滤波器和一阶无限冲激响应高通滤波器。用matlab计算并画出它们的增益响应，并用matlab证明两个滤波器是全通互补和功率互补的。涉及画图的频率范围[- π, π]，间隔设置π /100。-Design a 3dB cutoff at 0.45π with angular frequency at the first order infinite impulse response low-pass filter and the first order IIR high-pass filter. Using matlab to calculate and draw them gain response, and with matlab that two all-pass filters are complementary and power complementary. Involves drawing the frequency range [- π, π], interval π/100. Platform: |
Size: 1024 |
Author:林曈 |
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Description: 一阶无限冲激响应低通滤波器和一阶无限冲激响应高通滤波器，用matlab计算并画出它们的增益响应-First order IIR low-pass filter and the first order IIR high-pass filter, using matlab to calculate and draw them gain response Platform: |
Size: 1024 |
Author:zz |
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Description: matlab IIR 低通，高通和带通滤波器完整程序,本人花了好多时间自己写的,有滤波前后图形对比!-matlab IIR filters and low-pass，high-pass and band-pass filter the full process, I spent a lot of time to write my own, there is before and after the graphic correlation filter! Platform: |
Size: 4096 |
Author:刘姗 |
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Description: 在Matlab中设计GUI，按下相应的按钮，实现IIR高通滤波器和IIR低通滤波器的功能，并保存实验结果。-Design of GUI in Matlab, press the corresponding button, the realization of IIR high pass filter and IIR low-pass filter function, and save the experimental results. Platform: |
Size: 7168 |
Author:张高明 |
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