Description: 设计一个数字低通滤波器，来近似一个理想数字滤波器-Design a digital low-pass filter to approximate an ideal digital filter Platform: |
Size: 1024 |
Author:立早 |
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Description: 本程序设计了一个数字低通滤波器，以滤除加入的高斯白噪声，很好的实现功能。-The program design of a digital low-pass filter to filter out the add white Gaussian noise, achieve good function. Platform: |
Size: 1024 |
Author:肖俊 |
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Description: 设计一个数字FIR低通滤波器，其技术指标如下：
Wp=0.2pi Rp=0.25Db
Ws=0.3pi As=50db
试写出MATLAB设计的源程序。-Design a digital FIR low-pass filter, the technical indicators are as follows: Wp = 0.2pi Rp = 0.25Db Ws = 0.3pi As = 50db test designed MATLAB source code to write. Platform: |
Size: 25600 |
Author:高荣 |
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Description: 用各种窗函数设计FIR数字滤波器。
分别用矩形窗和Hamming窗设计线性相位FIR低通滤波器。要求通带截止频率，单位脉冲响应h(n)的长度N=21，绘出h(n)及其幅频响应特性曲线。
-Window function with a variety of FIR digital filter design. Were rectangular window and Hamming window design of linear phase FIR low-pass filter. Requirements of passband cutoff frequency, unit impulse response h (n) of length N = 21, draw h (n) and its amplitude-frequency response curve. Platform: |
Size: 3072 |
Author:刘卫菠 |
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Description: remez函数设计FIR低通滤波器
设计滤波器，使逼近低通滤波特性 。
要求通带波纹 ，阻带衰减 ，并用最小阶数实现。绘出设计的FIR数字滤波幅频特性曲线。
-remez function design FIR filter low-pass filter designed to approximate the low-pass filter characteristics. Requirements of passband ripple, stopband attenuation, and achieve a minimum order. Mapped the FIR digital filter design of amplitude-frequency characteristic curve. Platform: |
Size: 3072 |
Author:刘卫菠 |
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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: 本文以软件无线电为指导，提出基于CORDIC算法利用FPGA平台数字下变频器设计方案。首先分析下变频器的结构；然后采用模块化设计思想，将数字下变 频的功能模块包括数字控制振荡器、CIC抽取滤波、HBF抽取滤波器、FIR低通滤波器进行分析和FPGA的设计；最后在 MATLAB/DSPBuilder下硬件仿真模块进行仿真并给出仿真结果。-In this paper, software-defined radio as the guidance, based on the CORDIC algorithm uses the FPGA platform, digital down-converter design. First analyzes the structure of down-converter and then use a modular design concept, the digital down-conversion function modules including digital controlled oscillator, CIC decimation filtering, HBF decimation filter, FIR low-pass filter for analysis and FPGA design the final In the MATLAB/DSPBuilder under the hardware emulation module simulation and simulation results. Platform: |
Size: 201728 |
Author:jiang |
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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: 1.题目：数字滤波器的设计与应用
2.设计要求：利用 Matlab 软件,以复合信号分离为例,对 “数字信号处理” 课程中
的谱分析 、数字滤波器设计和信号滤波这三个过程进行了仿真实现,给出了仿真结果。
3.具体步骤：
（1）构造原始信号s(t)
（2）画出s(t)的频谱
（3）设计ellipse数字滤波器(IIR)，包括低通，带通，带通，并显示幅频特性
（4）用得到的滤波器进行滤波，分离出三路信号，观察时域波形和幅频特性
（5）用三路信号s1,s2,s3尝试重新合成原始信号
4.问题：为什么重新合成的信号和原信号不相等呢？谁能解释一下？谢谢,QQ:664519036- 1. Title: Digital Filter Design and Application
2. Design requirements: use of Matlab software to composite signal separation, for example, on "Digital Signal Processing" course
Of the spectral analysis, digital filter design and signal filtering process carried out three Simulation, the simulation results.
3. Concrete steps:
(1) construct the original signal s (t)
(2) Draw s (t) of the spectrum
(3) design ellipse digital filter (IIR), including low pass, band pass, band pass, and shows amplitude-frequency characteristics
(4) filtering with a filter obtained by the isolation of three signals, observed time-domain waveform and frequency characteristics
(5) with a three-way signal s1, s2, s3 try to re-synthesis of the original signal
4. Question: Why is re-synthesized signal and the original signal is not equal to it? Who can explain? Thank you, QQ: 664519036 Platform: |
Size: 1024 |
Author:张智刚 |
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Description: 这事我用巴特沃斯模拟的方法设计的数字低通，高通，带通滤波器，其中只有一小段-I used this method to design analog Butterworth digital low pass, high pass, band pass filter, which only a short Platform: |
Size: 616448 |
Author:刘华 |
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Description: 主要内容：利用冲击响应不变法设计数字低通滤波器；基于双线性Z变换法设计数字滤波器；基于巴特沃斯模拟滤波器设计高通滤波器；基于巴特沃斯模拟滤波器设计带通滤波器
4.5基于巴特沃斯模拟滤波器设计数字带阻滤波器
4.6利用双线性Z变换法设计一个带通椭圆滤波器
-Main elements: the use of the same impulse response digital low-pass filter design method bilinear Z-transform method based on digital filter design analog filter design based on Butterworth high-pass filter Butterworth analog filter design based on band-pass Butterworth filter 4.5 analog filter design based on digital band-stop filter 4.6 bilinear Z-transform method using a band-pass elliptic filter design Platform: |
Size: 2136064 |
Author:ifengdoo |
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Description: 本设计采用TMS320F28234 DSP芯片，设计了一台音频频率数字扫频仪。系统由扫频信号产生及调理模块、帯阻网络模块、幅频特性测试模块、数字幅频均衡模块以及人机交互模块组成。扫频信号由DSP内部PWM模块产生经外部有源低通滤波器进入带阻网络。应用数字信号处理技术在 DSP内部实现幅频特性测试，测试结果通过DSP的SCI在电脑显示器上显示，幅频均衡部分利用利用Matlab和基本部分中测得的陷波特性得出均衡算法中的滤波器的系数和阶数，然后在DSP内部对帯阻网络实现了均衡，完成了要求的各项指标。-A digital audio frequency sweep generator is developed with TMS320F28234 DSP chip in our design. The system consists of a sweep signal generation and conditioning module, band-stop network module, amplitude-frequency characteristic test module, digital amplitude-frequency equalization module and interaction module. The sweep signal generated by PWM module inner DSP pass the low-pass filter and then input the band-stop network. Digital signal processing technology is used in DSP to test the amplitude-frequency characteristic, and the test results are showed on computer monitor by the SCI of DSP, the amplitude-frequency equalization section computes the coefficients and order of the filter by matlab and trap characteristic measured in the basic part, then we achieve the equalization of the band-stop network, and complete all the requested indicators. Platform: |
Size: 4386816 |
Author:陶宝 |
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Description: 根据性能指标设计一个巴特沃斯低通模拟滤波器，通过双线性变换将该模拟滤波器转变为数字滤波器，并进行matlab仿真
-Design a Butterworth low-pass analog filter based on performance indicators, through the the bilinear transform the analog filter into a digital filter, and matlab simulation Platform: |
Size: 121856 |
Author:dlxial |
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Description: 使用matlab设计一个巴特沃斯低通数字滤波器，使用它对一个混合信号进行滤波，加深对低通滤波器的理解-Using matlab to design a Butterworth low-pass digital filter, use it to a mixed-signal filtering, to deepen the understanding of the low-pass filter Platform: |
Size: 40960 |
Author:jihangui |
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Description: 基于MATLAB结合窗函数设计一个数字低通FIR滤波器的方法-Based on MATLAB window function design combines a digital low-pass FIR filter method Platform: |
Size: 62464 |
Author:罗慧民 |
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Description: 是利用冲激响应不变法设计一个巴特沃斯数字低通滤波器。根据滤波器的设计思想脉冲响应不变法将模拟低通滤波器变换到数字低通滤波器，利用MATLAB绘制出数字低通滤波器的系统幅频函数曲线。-Use the same impulse response is to design a digital low-pass Butterworth filter. According to the impulse response filter design thinking the same method to convert the analog low-pass filter to the digital low-pass filter, using MATLAB to draw out the digital low-pass filter amplitude-frequency system function curve. Platform: |
Size: 5120 |
Author:杜丽娟 |
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Description: 利用双线性变换法设计一个巴特沃斯数字低通滤波器。根据滤波器的设计思想，通过双线性变换法将模拟低通滤波器变换到数字低通滤波器，利用MATLAB绘制出数字低通滤波器的系统幅频函数曲线。最终利用双线性变换法利用MATLAB函数仿真出了巴特沃斯低通滤波器的对数幅频及相频率曲线。-Bilinear transform design a digital low-pass Butterworth filter. According filter design ideas, through bilinear transform the analog low-pass filter is transformed into a digital low-pass filter, using MATLAB to draw out the digital low-pass filter amplitude-frequency system function curve. End-use bilinear transform simulation using MATLAB function of the logarithm of the amplitude frequency and phase frequency curve Butterworth low-pass filter. Platform: |
Size: 47104 |
Author:杜丽娟 |
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Description: 该实例主要是对离散时间系统建模与仿真。例子是以设计一个数字低通滤波器F（z），从受噪声干扰的多频率混合信号x（t）中获取10hz的信号。希望对研究电磁兼容以及学习MATLAB的学者有所帮助。-The examples are mainly discrete-time systems modeling and simulation. Example is the design of a digital low-pass filter F (z), acquiring a signal 10hz noise interference multi-frequency mixed signal x (t) in. I hope to study electromagnetic compatibility and scholars studying the MATLAB help. Platform: |
Size: 12288 |
Author:陈明杰 |
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Description: 简单的数字滤波器设计
1．用脉冲响应不变法设计巴特沃斯数字滤波器
2. 用双线性变换法设计切比雪夫数字滤波器
3. 用双线性变换法设计巴特沃斯数字滤波器，并将直接型结构转换成级联型结构
5.设计带阻滤波器
6．利用窗函数设计法设计FIR数字低通滤波器
7. 利用频率采样设计法设计FIR数字低通滤波器。
8. 创新训练拓展内容
（1）根据心电信号特点设计IIR或FIR滤波器滤除心电图信号噪声
（2）设计IIR滤波器或FIR滤波器对语音信号进行滤波。(Simple digital filter design
1. design of Butterworth digital filter by impulse response invariance
2. design of Chebyshev digital filter by bilinear transform
3. the Butterworth digital filter is designed by the bilinear transformation method, and the direct structure is converted into a cascade structure
5. design bandstop filter
6. design of FIR digital low pass filter by window function design
7. the FIR digital low pass filter is designed by using the frequency sampling design method.
8. the content of creative training and expansion
(1) design IIR or FIR filter to filter the noise of electrocardiogram signal according to the characteristics of ECG signal
(2) the IIR filter or FIR filter is designed to filter the speech signal.) Platform: |
Size: 1478656 |
Author:jl12
|
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