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BmpViewer
- to show the waveform of audio file and play it on computer Purpose: Familiar with WAV file format and UI design It should have the following functions: Provide a Graphic User Interface for user to browse the file system and select one WAV file
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
cs.rar
- 压缩传感理论的一个简单例子，首先对信号进行稀疏采样，然后利用MP算法对信号进行重建。,Compressed sensing theory of a simple example, first of all, the signal sparse sampling, and then use MP algorithm of signal reconstruction.
matlab
- 此程序包含了音乐信号的截取，信号减抽样，噪声频谱的观察以及滤波器的设计等-This program includes the music signal interception, signal by sampling the noise spectrum and the filter design observation
FFTmatlab
- 做FFT只能看出信号在0到分析频率（采样频率的一半）之间的相对分布，或者说得到以采样频率归一化的频率。 采样频率即取样频率，指每秒钟取得信号样本的次数。所以，采样频率就是1/（delta t），其中delta t为连续采两次信号的时间间隔。 采样频率/采样点数=频率分辨率。 -Signal do FFT can only be seen in the 0 to the analysis frequency (half the sampling frequency) relative
ADC
- 该matlab程序验证了信号处理中delta-sigma ADC的效果，在过采样和delta-sigma单次循环后得到的图象性噪比提高。-The matlab program verification of signal processing in the effect of delta-sigma ADC, and the over-sampling delta-sigma a single image obtained after cycles of noise ratio increase
CWsinal
- matlab绘制CW信号的时域波形，同时对信号进行频谱分析，并考察采样频率以及信噪比对频谱分析的影响。-matlab draw CW signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum analysis.
LPM
- 用matlab绘制线性调频信号的时域波形，同时对信号进行频谱分析，并考察采样频率以及信噪比对频谱分析的影响。-Matlab drawing with linear frequency modulation signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum
maikuan
- 对采样进来的数据进行提取，并对其分析，从而进行自适应的信号脉宽提取-The sampling of incoming data extraction, and analysis of adaptive signal extraction pulse width
waveleseriestthreshoding
- 使用matlab的小波分解和重建函数对24位的ADC采样数据进行小波变换和去噪，去噪使用阈值算法，阈值的选取具体使用了6种方法进行对比，对于不同信号其效果是不同的！把去噪后的信号和原始信号放在一个图中，使用不同颜色的曲线进行对比，效果可以很直观的表现。-Using matlab wavelet decomposition and reconstruction of the function for 24-bit ADC sampling data wavelet transform and de
test
- 再抽样后，调制前，信后总要先被量化。这里提供一段程序用于解决这一问题。-after sampling, we always need to quantize the signal in order to do the modulation. here i provide a segment of code which can solve this problem
lvboqisheji
- 设计一个IIR数字低通滤波器， 逼近一组模拟滤波器的指标参数（通带截止频率Wp=2*pi*2000rad/s,阻带边界频率Ws=2*pi*3000rad/s,通带波纹 Rp=3db, 阻带衰减Rs=15db, 采样频率f=10000Hz）； 分别用脉冲响应不变法和双线性变换法实现设计，列出传递函数并描绘模拟和数字滤波器的幅频和相频响应曲线。用上述设计滤波器完成几组给定信号的滤波，证明滤波器的有效性和滤波范围限制.-Design a IIR digital low-pass filter, app
keyasuochuangan
- 对可压缩的信号可通过远低于Nyquist标准的方式进行采样数据，仍能够精确地恢复出原始信号，对图像处理具有重要意义。-On the compressible signals can be well below the Nyquist sampling data standard manner, is still able to accurately restore the original signal, the image processing is important.
fft-C-programming
- c语言实现对输入正弦波信号的采样、保存、傅里叶变换、取模显示，希望对大家有用啊，毕设的一个模块-c language input sine wave signal sampling, preservation, Fourier transform, modulus show, we want to be useful, ah, complete set of a module. . . .
generating-white-noise
- 编程产生一组正态分布的白噪声信号,它的均值和方差以及长度可随意调整。将产生的白噪声信号存入数据文件。 本程序算法用C++语言编写。首先用乘同余法产生均匀分布白噪声，再用变换抽样法转换为高斯分布白噪声 -Program produces a set of normal white noise signal, its mean and variance, and the length can be adjusted. Will produce a white noise signal int
Lesson-7
- Digital Signal Processing deals with algorithms for handling large chunk of data. This branch identified itself as a separate subject in 70s when engineers thought about processing the signals arising from nature in the discrete form. Developme
xianbofilter
- 设计陷波滤波器，建立原始信号，对其采样，将采样信号通过滤波器进行滤波-Design trapped wave filter, establish the original signal, the sampling, will sampling signal through the filter to filter
3-Sampling-Theory-
- 3多通道,多试样率公式。抽样理论在信号和图像处理的国际期刊83 _nelson_stsip 2(1)83 - 96-3 A multi-channel, multi-sampling rate theorem . Sampling Theory in Signal and Image Processing An International Journal 2(1) 83-96 2003_nelson_stsip
De423sktop
- 【谷速软件编程】matlab源码-平滑稀疏采样信号和图像的直方图 可以作为参考使用，程序是word版本 -[Valley] matlab source software programming speed- smooth sparse sampling signal and image histogram can be used as a reference, the program is a word version
newGUI(1)
- 完成信号波形显示，频谱分析，采样，采样后频谱分析和通过滤波器，进行信号恢复-Complete the signal waveform display, spectrum analysis, sampling, spectrum analysis, and through the filter, after sampling signal recovery