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我编写的利用trous(多孔算法)实现小波变换,利用‘db4’小波函数分解两层,其中卷积运算采用频域的fft算法,给出了仿真信号的处理结果。-prepared by the use of trous (porous algorithm) to achieve wavelet transform, use 'db4' wavelet decomposition layers, which used convolution operators fft the frequency do
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自编的快速小波变换mallat算法,使用‘db1’小波函数,在卷积时使用wkeep命令进行了数据截取。重构信号和原信号比较误差较小。-self fast wavelet transform Mallat algorithm, the use of 'db1' wavelet function, Convolution in the use of wkeep order the interception of data. Reconstruction of the original
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用c语言实现下列的数字信号处理算法
1.离散傅里叶级数合成连续周期信号
2.DIF FFT 测试程序
3.将输入数据的幅度画出图形
4.使用FFT实现快速卷积
5.使用FFT实现快速相关
6.取样混迭演示程序
-language used to achieve the following digital signal processing algorithms 1. Discrete Fourier series synthetic signal two conse
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MATLAB循环相关,循环卷积函数的编写,使用几个函数实现。-MATLAB cycle related to the preparation of cyclic convolution function, the use of several function.
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ex2_1 利用Z变换求系统输出
ex2_2 求DFT
ex2_3 求序列的圆周移位
ex2_4 求序列的圆周卷积
ex2_5 简单的DFT实例
-ex2_1 the use of Z transform ex2_2 demand for system output DFTex2_3 seeking ex2_4 shift sequence for the circumference of the circular convolution sequence ex2_5 sim
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ex2_1 利用Z变换求系统输出
ex2_2 求DFT
ex2_3 求序列的圆周移位
ex2_4 求序列的圆周卷积
ex2_5 简单的DFT实例-for the use of Z transform ex2_1 system output DFT ex2_3 for ex2_2 sequence for translocation of the circumference of the circle sequence ex2_4 for easy ex2_5 the DFT co
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用C++实现的卷积公式 适合刚刚研究卷积公式的人使用-Using C++ to achieve just the convolution formula for those who study the use of convolution formula
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1、观察采样引起的混叠。
2、判别离散时间系统的时不变性。
3、利用卷积计算信号通过FIR滤波器的输出,并观察输出信号的input-on暂态、input-off暂态和稳态阶段。
-One to observe the sampling due to aliasing. 2, determine the time invariant discrete-time systems. 3, the use of convolution calculation of the signal th
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一个关于线性卷积的程序,使用通过用托普利兹矩阵完成-Linear convolution of a program on the use of matrix completion by using Top Leeds
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计算信号相关性的传统方法,利用卷积来计算。-The traditional calculation of signal correlation methods, the use of convolution calculation.
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利用重叠相加法实现线性卷积,其中应用了fft和ifft原理-Use of overlap-add method to achieve linear convolution
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使用matlab的waveread函数读入两个.wav格式的数据文件,采用补零或截取方式使它们具有相同长度,然后分别完成序列的延迟/超前/加/标乘及卷积运算,对运算结果采用wavwrite函数写为.wav文件并加以播放(或用sound直
接播放),分析上述操作对序列的实际影响
-Use of matlab waveread function reads two. Wav format data files, using zeros or intercepting a way that t
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MATLAB下使用viterbi算法进行卷积码的仿真范例。可以用任意配置的卷积码。testConv.m启动仿真,其中用了两种卷积码(一个1/2和一个2/3卷积码)。若要使用硬判决,需修改metric.m文件。其他就没有什么要改的了。解压即可使用。-Under viterbi algorithm using MATLAB simulation examples of convolution codes. Can be used in any configuration of the convolu
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利用VC++实现褶积运算,可以计算任意两个离散的数组的褶积运算。-Use VC++ to achieve convolution can be calculated between any two arrays of convolution.
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以内插值替换的卷积(IC):在处理不规则采样数据的另一种选择是使用插值逼近原始的连续函数-Interpolated convolution (IC): In another irregular sampling data selection process is the use of interpolation approximation of the original continuous function
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产生一512点的随即序列xe(n)并用xc(n)和 xe(n)做线形卷积,观察卷积前后xe(n) 频谱的变化。要求将xe(n)分成8段,采用重叠相加法-512 point sequence Xe (n) and XC (n) and Xe (n) to do linear convolution, the Xe (n) spectrum changes before and after convolution is observed. Xe (n) is divided into 8 secti
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语音增强,采用自适应增益平均和低延时卷积的谱减,函数可直接调用,简单易行-Speech enhancement, the use of adaptive gain average and low delay convolution spectrum subtraction, the function can be called directly, simple and easy to use
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通过本次实验更加深刻具体的了解信号与系统中离散卷积的运算过程.知道了信号的反褶和位移,阶跃信号x[n]在卷积中的运用,熟练掌握了卷积过程,为信号与系统后面的学习打下了基础。并且在利用MATLAB实现离散卷积的动态过程中,把课本上的理论知识与软件学习相结合,使卷积在脑海中留下更加立体生动的印象。-Through this experiment a deeper understanding of specific signals and systems Discrete convolution op
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卷积的实现,包含一些实测过的数据,可以在有usart上的MCU上实验,本人当时用的是EFM32。-The realization of the convolution, contains some of the measured data, the can on the MCU in usart experiment, I use is EFM32 at that time.
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this consists of convolution without filters, watermarking of image, zooming and shrinking of images without the use of inbuilt functions.
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