搜索资源列表
xiaobo1
- 小波分析,及小波能量谱分析,信号分析与处理技术-wavelet analysis, and wavelet energy spectrum analysis, signal analysis and processing technology
experimenttwo
- 用FFT对信号进行频谱分析。(数字信号处理)-the FFT spectrum analysis signals. (Digital signal processing)
fre-analysis
- 这是一个matlab环境下的关于图像频谱分析的源代码,内附图像。-This is a Matlab environment on the image spectrum analysis of source code, containing images.
duocengmo
- 小波分析,及小波能量谱分析,信号分析与处理技术小波分析,及小波能量谱分析,信号分析与处理技术-wavelet analysis, and wavelet energy spectrum analysis, signal analysis and processing technology wavelet analysis, and wavelet energy spectrum analysis, Signal Analysis and Processing Technology
DFT进行频谱分析时的三种现象
- DFT进行频谱分析时的三种现象 1、混叠:对连续信号采样,要求连续信号是带限的,采样频率要足够高。Fs应满足Nyquist采样定理才不产生混叠。 采样前加低通滤波器防混叠 2、频谱泄漏:DFT对时域信号进行了截断(相当于采样信号乘了一个窗函数),时域的乘积相当于频域卷积,改变了原信号频谱。 改用其他窗函数(非矩形)改善泄漏。 3、栅栏现象:DFT 只给出了频谱在采样点上的取值,采样点间的频谱内容丢失。-DFT spectrum analysis of a
pulse
- 脉搏信号分析 (1)设计滤波器,实现对脉搏信号的噪声抑制和基线纠漂; (2)时域分析:波形特征检测; (3)功率谱分析:对消噪后的信号进行功率谱分析。要求计算信号的功率谱,功率谱峰值,峰值频率。 -Pulse signal analysis (1) design the filter, to achieve the pulse signal noise suppression and baseline drift correction (2) time-domain analy
pinpu
- 通信原理实验系统,通过对正弦、方波三角波进行频谱分析,在观察他们的品普及,对此进行GUI设计,整个界面简洁美观-Communication theory experimental system, through the sine, square, triangle wave spectrum analysis, observation of their products in the popularity of this in GUI design, the interface is simpl
FFT
- 应用快速傅里叶变换对信号进行频谱分析,内附相应调用函数细解,适合初级入门人员查阅,可直接运行-Application of fast Fourier transform spectrum analysis.
wave
- 这是一个对用户音频信号进行FFT频谱分析的程序 他可以显示多种形式的信号EQ PEAK SPECTRUM-This is a user audio signal spectrum analysis program can display multiple forms of the signal EQ The PEAK of SPECTRUM
fft2
- matlab实现的fft2程序,可用于图像频谱分析-matlab implementation of fft2 procedures, can be used for image spectral analysis
wavepage
- 小波包分析提取振动信号中的分解,系数重构特征频率,以及能量谱分析计算-Wavelet packet analysis to extract the vibration signal decomposition coefficient reconstruction of the characteristic frequency, and calculate the energy spectrum analysis
fwt2d_demo
- 小波变换源码,国外VC开发的,效果比较好 I ve been involved with wavelet-analysis since my Ph.D studies and over the years developed various wavelet-transforms C++ libraries. This one concerns 2D implementation of the Fast wavelet transform (FWT). The 2D FWT is used i
ppanalysis
- 功率谱分析,用于序列的周期识别。将一序列用不同周期的谐波分解,并用F检验进行周期检验。-Power spectrum analysis for identification of sequence cycles. One sequence will be different harmonic decomposition cycle and test cycle with F test.
FrequencyDomainAnalysisOfTheSystem
- 信号频谱分析 1. 观测已知方波信号、正弦波信号的频谱 分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。 观测实时模拟信号(语音)的频谱 用音频设备采集一段语音,将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的,应把它分段分析,而且实际运用中的数字信号处理的FFT的点数是有限的,一般只能达到千点。用傅里叶反变换IFFT,从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis 1.
spectrum-analysis-program-
- 这是自己编写的频谱分析程序,不需要调用FFT,直接调用本程序即可,毕业设计的一部分,绝对运行没问题且效果好-This is the spectrum analysis program to write your own, do not call the FFT, you can directly call the program, part of the design school is absolutely no problem and the effective operation
ECG
- 心电信号分析 (1)设计滤波器,实现对心电信号的噪声抑制和基线纠漂。 (2)时域分析:R波检测算法与实现. (3)功率谱分析:对消噪后的信号进行功率谱分析。要求计算信号的功率谱,功率谱峰值,峰值频率。 -ECG Analysis (1) design filters to achieve noise suppression of ECG and baseline drift correction. (2) time-domain analysis: R-wave detectio
spectrum-analysis-Labview-program
- 这个程序是谱分析的综合应用,在汽车排气噪声监测和故障排除中有很好的效果。-This program is a comprehensive spectral analysis applications in the automotive exhaust noise monitoring and troubleshooting have very good results.
application-of-FFT-spectrum-analysis
- 利用FFT对音频信号的分析,希望对你们有用,嘎嘎,你们慢慢看哈-Lab 2 application of FFT spectrum analysis
noise-Spectrum-analysis
- 小波分析噪声信号数据的频谱,得到其频谱分布,辅助分析信号性质。-Wavelet analysis of the noise spectrum of the signal data, its spectral distribution, the auxiliary nature of the analytical signal.
Sound-analysis
- 声音分析,频谱分析,声音信号处理,matlab声音处理软件-Sound analysis, spectrum analysis, the voice signal processing, the Matlab sound processing software