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Description: 本次课程设计是用麦克风采集一段语音信号并对该语音信号进行滤波去噪处理。课程设计平台为MATLAB7.1。设计步骤为：首先采集一段语音信号并观察其频谱，然后设计一个汉明窗FIR滤波器，最后对该信号进行滤波。信号在进行滤波处理后，能够听到滤波后的语音信号和滤波前相比明显的变得清晰，基本达到了设计目的。-The curriculum design is a section of a microphone speech signal acquisition and filtering of the speech signal de-noising processing. Curriculum design platform MATLAB7.1. Design steps: First, a section of speech signal acquisition and to observe its spectrum, and then the design of a Hamming window FIR filter, the final filtering of the signal. Signal during the filtering processing, to hear the voice signal after filtering and filtering obvious ago became clear, the basic design to achieve the purpose.
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Size: 96256 |
Author: 球球 |
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Description: 滤波反投影CT图像重建算法
filter-backproject reconstruction, including feldkamp (FDK) cone beam-Filter back projection algorithm for CT image reconstruction filter-backproject reconstruction, including feldkamp (FDK) cone beam
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Size: 88064 |
Author: 张张 |
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Description: 改进的维纳滤波的matlab代码 .m文件 直接运行-Improved Wiener filter matlab code. M files directly run
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Size: 1024 |
Author: zp_ff |
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Description: 数字滤波器，源代码，因该比较有用的，MATLAB程序
-Digital filter, the source code, as the comparison useful, MATLAB program
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Size: 5120 |
Author: 明明 |
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Description: 详细具体地记录了在matlab平台中fir滤波器的设计过程-Detailed record of the matlab platform fir filter design process
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Size: 143360 |
Author: 原来 |
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Description: matlab下实现降噪，功率谱计算。％程序中设定采样点数为256个，采样频率为10000hz，
％输入信号为随机噪声和两个正弦的合成信号
％设定的滤波器的截止频率为3500hz
％通过挈比雪肤滤波器，运行程序，比较滤波前后的频域波形
％滤波去除了高频信号-matlab achieve noise reduction, power spectrum calculation. Sampling procedure set for 256 points, the sampling frequency of 10000hz, input signal for the random noise and the two sinusoidal signals synthetic filter set a cut-off frequency 3500hz manner than through the filter雪肤, run procedures, compared before and after filtering in frequency domain waveforms filtering in addition to high-frequency signals
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Size: 1024 |
Author: 范范 |
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Description: 巴特沃斯低通滤波器的设计的matlab原程序如下-Butterworth low-pass filter design matlab the original procedures are as follows
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Size: 4096 |
Author: 陆小新 |
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Description: 褶积运算，褶积滤波的应用，设计理想滤波器，-Deconvolution operation, the application of deconvolution filtering, design an ideal filter,
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Size: 2048 |
Author: 豆豆 |
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Description: 实验指导 低通采样定理实验 FFT频谱分析实验 IIR滤波器设计实验 窗函数法FIR滤波器设计 频率采样法FIR滤波器设计实验-Experimental guide low-pass sampling theorem FFT spectrum analysis experiment experiment experiment IIR Filter Design Window Function FIR filter design frequency sampling FIR filter design experiment
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Size: 305152 |
Author: 晟仔 |
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Description: 三分之一倍频程滤波器组的算法。可以从时域进行滤波得到频谱，需要读入数据。-One-third octave filter bank algorithm. Can be time-domain filter spectrum, the need to read into the data.
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Size: 1024 |
Author: she |
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Description: IIR一阶低通滤波器
一阶高通滤波器
Notch 嵌波滤波器
Peak 滤波器
IIR低通滤波（Butterworth）
IIR高通滤波（Butterworth）
IIR带通滤波（Butterworth）
IIR带阻滤波（Butterworth）
IIR低通滤波（chebyshev 1）
IIR低通滤波（chebyshev 1）
chebyshev 中用到的函数 cheby.m-First-order IIR low-pass filter the first-order high-pass filter Notch filter inlay Peak wave filter IIR low-pass filter (Butterworth) IIR high-pass filtering (Butterworth) IIR band-pass filter (Butterworth) IIR band-stop filter (Butterworth) IIR low-pass filter (chebyshev 1) IIR low-pass filter (chebyshev 1) chebyshev function used cheby.m
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Size: 7168 |
Author: Kelsey |
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Description: 用于介绍滤波器的构建以及如何对输入信号进行去噪声。-Construction for the introduction and how to filter the input signal to noise.
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Size: 226304 |
Author: 陆斯文 |
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Description: ％ y=filter(sig,fmin,fmax)
％ 对信号进行理想滤波，可完成低通，带通
％ sig为被滤波信号
％ fmin为下限频率，当fmin为0时为低通滤波器，当fmin>0时，为带通滤波器
％ fmax为上限频率，fmax>fmin
％ fs为信号的采样频率
％ y为经过滤波后的信号
-％ Y = filter (sig, fmin, fmax)％ of the ideal signal filtering, to be completed by low-pass, band-pass filter％ sig for signal％ fmin is the minimum frequency, when fmin for 0:00 for the low-pass filter, when fmin > 0, for the bandpass filter％ fmax is the upper limit frequency, fmax> fmin％ fs for signal sampling frequency％ y for the filtered signal
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Size: 1024 |
Author: liu |
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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-
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Size: 3072 |
Author: 东 |
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Description: bayesian matlab Filter
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Size: 25600 |
Author: junsung |
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Description: 结合论文讲述了例子滤波的原理，并且配合仿真，充分说明粒子滤波的有点。-Combination of filter paper describes examples of the principle, and with the simulation, the full description of a little particle filter.
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Size: 2152448 |
Author: ccf |
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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.
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Size: 2048 |
Author: 阿祥古 |
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Description: matlab的滤波器，有菜单选择，高通，带通和低通，并且内有一个音频文件-matlab filter, there is the menu selection, high-pass, band-pass and low pass, and inside there is an audio file
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Size: 135168 |
Author: zengxubin |
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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.
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Size: 1024 |
Author: 肖俊 |
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Description: 利用MATLAB实现的一些图像处理程序 有利用HOUGH变换实现圆的检测 也有实现均值处理的以及同台滤波处理还有中值滤波的-The use of MATLAB implementation of a number of image processing procedures have to use HOUGH transform circle detection also realize there is implementation of the deal, as well as the mean filter treatment have the same median filter of
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Size: 4096 |
Author: 刘东 |
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