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FFT-matlab FT在matlab中的实践分析
- FFT在matlab中的实践分析，例子为求一个正弦波的频谱图、均方根谱、功率谱、对数谱和进行IFFT的变换-FFT analysis of the practice in matlab, examples for the sake of a sine wave of frequency spectrum, the rms spectrum, power spectrum, and the IFFT on the number of spectral transformation
spectrum.rar
- 对wav音频进行分析，并进行fft转换，最后生成可视的频谱图,Wav audio for analysis and fft conversion, the final generation of visual spectrum
FFT_armtest
- 自己写的一个基于eMbedded Visual C++的音频采集以及频谱分析小程序。 包括录音，回放，时域波形，频谱图-Based on the eMbedded Visual C++ of the audio spectrum analysis procedures. Including recording, playback, time-domain waveform, frequency spectrum
MATLAB
- 用matlab对wav文件进行频谱分析，并画出频谱图-att
test
- 对语音信号加窗（汉明窗）并进行短时傅里叶变换，观察其频谱图，同时进行相位幅值分析-fft
shengyuxian
- 理想低通滤波器特性曲线绘制 频率图分析 升余弦滤波器特性曲线绘制 频谱图分析 部分响应系统滤波器特性曲线-Ideal low-pass filter frequency characteristic curve analysis drawn up cosine filter characteristic curve analysis part of the spectrum mapping system filter response curve
Shorttimespectrumanalysis
- 基于matlab语音短时频谱分析，到谱分析，语谱图分析及结果-Short-time spectrum analysis based on matlab speech to the spectral analysis, spectrogram analysis and results
myWave_Fft
- 自制软件，实现频谱分析。能显示信号与频谱图。主要是对正弦信号和三角波进行一维FFT变换，得到频谱图。-Self-made software, the realization of spectral analysis. Showing the signal and frequency spectrum. Mainly sinusoidal signal and triangular wave transform one-dimensional FFT, the frequency spectrum
FrequencyAnalyzer2.0
- 可对音频输入、音频文件、位图文件进行频谱分析，显示频谱图 -Of audio input, audio files, bitmap files spectrum analysis shows that the spectrum graph
SpectrumAnalyzer
- 根据语音频谱分析和频谱图显示的原理与算法，用MATLAB实现一种可在PC机上实现的信号频谱分析与频谱图伪彩色映射显示的方法。-According to voice spectrum analysis and spectrum diagram shows the principle and algorithm, using MATLAB to achieve a realization of machines in the PC spectrum of the signal frequency s
vhdl
- 信号与线性系统的时频域分析：观测已知方波信号、正弦波信号的频谱；观测实时模拟信号的频谱；加深理解时域周期信号的各频率分量在振幅频谱图上所占的比重；观测相位在波形合成中的作用；LTI系统的频域分析，LTI系统对周期性输入信号的响应。-Signals and linear systems with time-frequency domain analysis: observation known square wave signal, sine wave signal spectrum obser
TrueWavAnalyzer
- 基于VB的WAV声音波形/频谱分析系统，真正的频谱分析程序，播放、采样分析，支持多声道采集，显示清淅的频谱图。-VB on the WAV sound waveform/spectrum analysis system, the real spectrum analysis procedures, playback, sampling and analysis in support of multi-channel acquisition, the spectrum shows clear mi
sound
- VB开发的简单DWL声音频谱分析仪，也就是声音示波器，直接加载WAV文件或通过麦克风就可实时分析声音信息，并显示出声音频谱图。-VB to develop a simple spectrum analyzer DWL sound, that is, the voice of oscilloscope, load WAV files directly or through a microphone can be the voice of real-time analysis of informat
FFTdemo
- 对AD采样来的数据信号进行快速傅里叶变换，并将FFT后的频谱图和波形通过液晶LCD显示出来，对信号分析处理有很大帮助！-Sampling of the AD to the data signals fast Fourier transform, and FFT frequency spectrum and waveform after the adoption of liquid crystal LCD display, the signal analysis and processing of
twofilter
- 实现信号的频谱图，可以方便的对其频率成分进行分析-Achieve the frequency spectrum of the signal can be easily analyzed for its frequency components
poweranalysis
- 对语音识别中的声音信息作能量谱分析，得到频谱图，统计所有声音信息中的频率性质。-poweranalysis
频谱分析程序
- 能够画出信号的频率关系，画出频谱图，并且返回频谱中的峰值，以及对应的频率(It can draw the frequency relationship of the signal, draw the spectrum, and return to the peak in the spectrum, and the corresponding frequency.)
时频信号分析
- 实现绘制信号的功率谱，两重自相关，滤波后时域，滤波器，频谱图，信号时域图以及自相关函数图等功能(The functions of drawing signal power spectrum, double correlation, filtering time domain, filter, spectrum, signal time domain and autocorrelation function diagram are realized.)
轴承信号分析
- 共振解调的过程如下：首先对采集到的信号进行傅里叶变换，然后利用传感器自身的谐振频率进行分析，对滤波后的信号进行包络，包络以后去除了高频部分，得到包络信号，再对改进的包络信号进一步进行低通滤波，最后对最终得到的信号进行傅立叶变换求其频谱图。共振解调的原理及其过程可以用图2 来进行表述。(The process of resonance demodulation is as follows: First, Fourier transform is performed on the collected
快速傅里叶分析（最新）
- 利用快速傅里叶分析的方法绘制数据的频谱图，分析其是否有固有周期(Drawing the spectrum of random number)