Description: 我根据倒频谱的定义和MATLAB，给出了几种倒频谱的计算，程序如下（可在MATLAB直接使用 ）。但是，从获得的图象还是找不出我要找出的频率。-In accordance with the definition of cepstrum and MATLAB, are given several cepstrum calculation procedures are as follows (which can be used directly in MATLAB). However, access to or can not find the image I would like to find out the frequency. Platform: |
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Author:小单 |
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Description: 最近和一位研友交流时谈到Matlab时频分析，了解到Matlab并不提供直接的绘制时间-频率分布图的命令，而是以时间-尺度图代之。不过很多时候我们要用到时间-频率图来分析信号，这两天集中搜集了相关的资料，其中在 MathWorks.com 的 Fileexchange 中心找到一个不错的Matlab时频分析工具，使用 Matlab GUI 界面开发，内核用C编写，感觉使用方便，分析和作图速度快，而且有多种图形表达方式选择。-Friends of the recent research and a reference to communicate Matlab time-frequency analysis, that Matlab does not provide a direct rendering of time- frequency distribution of command, but in time- Scalogram instead. But often we spend time- frequency diagram to analyze the signal, these two days focus on relevant information collected, of which the Fileexchange in MathWorks.com Center Matlab to find a good time-frequency analysis tool, the use of Matlab GUI interface development, which the preparation of nuclear use C, I feel easy to use, fast analysis and mapping, and expression has a variety of graphics options. Platform: |
Size: 769024 |
Author:吴巧云 |
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Description: 本程序用于测量增强语音与纯净语音的对数谱距离，用于语音增强。对数谱距离越小，表明增强语音与纯净语音越接近，增强语音质量越好；反之，则增强语音质量越差。-Calculates the average log-spectral distance between CLEAN and NOISY
signals. Frames are 25ms long with 60 percent (15ms) overlap, hamming
windowed. RS is the remove silence option (default: 0) if 1, the program
uses a Voice Activity Detector to find non-speech frames and eliminates
them from calculation of LSD. FS is the sampling frequency (Default
10KHz). Platform: |
Size: 3072 |
Author:阿铁 |
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Description: GSM小区搜索为系统中的一个关键过程，本程序为GSM小区初搜过程的第一部，查找频率校正突发的matlab程序，输入数据由采样数据得到，在转换成所需格式后进行处理。若其中包含fcch,则输出找到信息。若没有，则查找下一个突发-Area early in the search for the GSM system, a key process, the procedures for the GSM cell search process, the beginning of the first to find matlab sudden frequency correction process, the input data by sampling data in the required format conversion processing . If one includes fcch, while the output to find information. If not, then find a sudden Platform: |
Size: 149504 |
Author:Jose |
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Description: 印度GURUNANAK ENGINEERING COLLEGE数字信号处理实验室的DSP+c+Matlab联合编程手册-DIGITAL SIGNAL PROCESSING LAB (IV-I SEM)
INDEX
1. Architecture of DSP chips-TMS 320C 6713 DSP Processor
2. Linear convolution
3. Circular convolution
4. FIR Filter (LP/HP) Using Windowing technique
a. Rectangular window
b. Triangular window
c. Kaiser window
5. IIR Filter(LP/HP) on DSP processors
6. N-point FFT algorithm
7. Power Spectral Density of a sinusoidal signals
8. FFT of 1-D signal plot
9. MATLAB program to generate sum of sinusoidal signals
10. MATLAB program to find frequency response of analog Platform: |
Size: 1582080 |
Author:wangjin |
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Description: 系统辨识实现已知输入和输出信号，求系统函数的幅频响应等参数-System identification to achieve a known input and output signals, find the system function of parameters such as amplitude-frequency response Platform: |
Size: 7168 |
Author:zoukui |
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Description: 该压缩包包括五个基本的语声处理方面程序，主要用来查找基准频率包括AMDF，Griffin，和自相关等算法。用Matlab编写。-The compressed packet consists of five basic Voice processing program, mainly used to find the base frequency, including AMDF, Griffin, and self-related and other algorithms. Prepared using Matlab. Platform: |
Size: 160768 |
Author:zenttic |
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Description: 此程序用于振动性能分析，求震动信号的相频、相频特性。-This program performance for the vibration analysis, find the frequency of vibration signal phase, phase-frequency characteristics. Platform: |
Size: 3072 |
Author:ellion |
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Description: Here,we want to estimate a system with ARX and ARMAX.
the euation of system is : 2(s+1)/s^2+2s+2
so first, we find the discrete equation that sampling frequency is 100ms.
Here,in our sample,na=nb=2,nc=1
also ,this algorithm find the poles and zeros of the system. Platform: |
Size: 39936 |
Author:maysam |
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Description: 这是一个简单的语音基音检测方法，通过对语音信号进行滤波、分帧、求自相关函数，可得到浊音的基音周期，从而实现基频检测。-This is a simple voice pitch detection, voice signals by filtering, sub-frame, find the autocorrelation function, voiced the pitch period available to achieve the fundamental frequency testing. Platform: |
Size: 20480 |
Author:吴艳花 |
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Description: 求一个系统的幅频响应相频响应单位冲击响应以及其它-Find the frequency response of a system unit impulse response of the phase-frequency response and other Platform: |
Size: 4096 |
Author:linda |
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Description: 蜂窝移动通信系统中的同频干扰仿真。旨在找到簇大小为N时，无线移动蜂窝系统中同频干扰的分布。-Co-channel interference in cellular mobile communication system simulation. To find the distribution of cluster size N, wireless mobile cellular systems in the same frequency interference. Platform: |
Size: 2048 |
Author:刘芊 |
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Description: how to scovert speech to matrix
how to convert matrix form to speech
how to find sample frequency for speech
how to play an sound signal in matlab
mf-how to scovert speech to matrix
how to convert matrix form to speech
how to find sample frequency for speech
how to play an sound signal in matlab
mfcc Platform: |
Size: 443392 |
Author:nvdmahesh |
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Description: 程序1：周期信号（方波）的展开
程序2：用图形表示DSB调制波形及其包络线
程序3：通过傅里叶变换找出被随机信号淹没的信号频率
程序4：DSB-AM 双边带幅度调制和解调
程序5：AM调制和解调-Procedure 1: periodic signal (square wave)
Program 2: graph DSB modulation waveform and its envelope
Application 3: through the Fourier transform to find out the submerged by random signal signal frequency
Program 4: DSB- AM double sideband amplitude modulation and demodulation
Program 5: AM modulation and demodulation Platform: |
Size: 2048 |
Author:星河之风 |
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Description: 该段代码能实现找出隐藏或淹没在噪声时域信号中信号的频率成分。用FFT对试验数据进行谱分析，指出数据包含的频率成份。-One use FFT is to find hidden or submerged in the time domain signal noise frequency components of the signal. Test data with FFT spectrum analysis, pointed out that the data contained in frequency components. Platform: |
Size: 199680 |
Author:周煊 |
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Description: 寻找峰值的函数，基频的检测，帧数的计算问题以及加噪声-Find the function of the peak, the detection of the fundamental frequency, the calculation of the number of frames and the addition of noise Platform: |
Size: 3072 |
Author:zandanfei |
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Description: 既然要得到的是频率玫瑰图，就要求出每个方向上在这个月中出现的次数，然后除上整个月的风向次数。通过对比，发现利用极坐标比直角坐标更简便些，故利用 find（）寻找方向值，length计算方向的长度，polar绘制玫瑰图(Since you want a frequency rose diagram, ask for the number of times per month in each direction, and then count the number of winds in the whole month. By contrast, it is found that it is easier to use polar coordinates than rectangular coordinates. Therefore, find () is used to find the direction value, length to calculate the length of the direction, and polar to draw the rose diagram) Platform: |
Size: 9216 |
Author:一拳
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Search - matlab find frequency