搜索资源列表
psd
- 基于频谱分析的matlab处理程序，希望对初学者有用。-Based on spectral analysis matlab processing program, and I hope useful for beginners.
DCTAndIDCT
- 图像的DCT余弦变换（频谱变换），包括IDCT变换以及反变换。经过测试修改源代码中的笔误。包括理论。-Image DCT cosine transform (spectrum transform), comprising IDCT transform and inverse transform. Tested modify the source code of a clerical error. Including theoretical.
Fourier-transform
- visual c++下导入OpenCV库函数，实现图像傅里叶变换，显示频谱图，代码含详细注释，适合学习。-Import under visual c++ OpenCV library functions achieve image Fourier transform, spectrum display, the code contains detailed notes, suitable for learning.
SAVI_0403
- 频谱仪界面例程,完整的图形显示与控件设置。-Spectrometer interface routines, complete graphical display and control Settings.
qpsk
- qpsk的频谱图和星座图，然后添加高斯白噪声后观察-qpsk spectrum and constellation diagram, and then add white Gaussian noise was observed after
ECG-experiment
- 里面包含有几个由MP150采集到的ECG、PPG和心率数据，还有一个能显示ECG和PPG信号波形以及频谱的matlab程序，它还能显示经过五点平滑滤波后的ECG和PPG的波形，程序中有注释。-Which contains several by the MP150 collected ECG, PPG and heart rate data, and one can show ECG and PPG signal waveform and spectrum matlab program, it c
opencv-fft2
- 灰度图像的二维傅里叶变换(cv_gray_fft2)，二维傅里叶变换结果的幅值计算(cv_abs)，频谱平移(cv_gray_fft2shift)，将数值归一化到0到255区间(cv_range_0to255)是非常常用的四个功能！所以写成四个函数，方便将来调用！附运行截图~并附对应的MATLAB程序！-Dimensional Fourier transform of the grayscale image (cv_gray fft2), two-dimensional Fourier tran
fft-code
- FFT算法实现,从txt文件中导入数据进行FFT，并且把需要的频谱图叠加画出二维三维图-FFT algorithm, import data txt file FFT is performed, and the required spectrum superposition shown in Fig. 2D and 3D
shuzituxiang-
- 本程序是将数字图像进行傅里叶变换，得到对应图像的频谱特性。-This procedure is the digital image of the Fourier transform, the corresponding image of the spectrum characteristics.
Energy-Detection
- 认知无线电的分布式频谱感知技术研究，能量检测的代码及仿真-Distributed spectrum sensing cognitive radio code emulation technology research, energy detection
Untitled2
- 博弈的频谱分配，我们可以更清楚的了解到博弈论在无线网络中的作用。知道博弈论的重要性-Spectrum allocation game, we can more clearly understand the role of game theory in wireless networks. We know the importance of game theory
WaveShow
- 介绍了采用离散傅立叶变换（DFT）实现对采样得到的波形数据文件进行频谱分析的一般方法，并且为了提高运算效率、节省中间存储单元，最终采用了 时间抽选奇偶分解 的 库利-图基算法 实现快速离散傅立叶变换，对采样数据进行了高效的频谱分析，并用Microsoft Visual C++ 6.0编写实现-Introduced the discrete Fourier transform (DFT) is a general method of the spectrum anal
Source-Modulation
- 1.对信源进行AM，DSB,SSB调制 2.信道中各自加入进过带通滤波器后的窄带高斯白噪声,解调每个信号，并画出滤除前后，双边带信号和单边带信号的频谱。-1. Letter source AM, DSB, SSB modulation 2. Add to each channel through the band pass filter into a narrow band Gaussian white noise, each signal demodulated, filtered a
horizental-lines
- 利用傅里叶变换的方法对其频谱进行处理，去除奇异点，已达到降噪的目的。-Using the method of its Fourier transform spectrum processed to remove singular point, we have reached the purpose of noise reduction.
zuoye1
- imadjust()对数字乳房X射线图像做变换、傅里叶频谱进行对数变换及直方图相关-imadjust () for digital X-ray image of the breast do transform, the Fourier spectrum logarithmic transformation and histogram related
image-processing-
- 快速傅立叶变换（FFT），并显示傅立叶频谱。描述傅立叶频谱是从在该函数创建的图像获得的外观。-Fast Fourier Transform (FFT), and displays the Fourier spectrum. Describe the appearance of the Fourier spectrum is obtained the image created by the function.
face-fast-track
- 基于时空上下文模型的人脸快速追踪算法。采用概率置信模型和傅里叶频谱进行定位，还包含目标尺度变化，速度很快。-Face model based on temple-spatial context of rapid tracing algorithm. Confidence probabilistic model and the Fourier spectrum positioning also includes object scale changes quickly.
FFTup
- FFT的实践及频谱分析，利用正弦波、白噪声、矩形波来进行验证。-Practice and FFT spectrum analysis, a sine wave, white noise, a rectangular wave for authentication.
Signal-spectrum
- 矩形波函数，计算其频谱，幅度谱和相位谱，与理论值比较。-Rectangular wave function, the calculation of its spectrum, amplitude spectrum and phase spectrum, compared with the theoretical value.
Mechanical-fault-diagnosis-method
- 经验小波变换(EWT)是一种新的自适应信号分解方法, 该方法继承了EMD 和小波分析方法的各自优点, 通过提取频域极大值点自适应地分割傅里叶频谱以分离不同的模态, 然后在频域自适应地构造带通滤波器组从而构造正交小波函数, 以提取具有紧支撑傅立叶频谱的调幅-调频(AM-FM)成分。本文将该方法引用到机械故障诊断中, 提出了一种基于经验小波变换的机械故障诊断方法, 并与EMD方法进行了对比分析。仿真结果表明, 经验小波变换方法明显优于EMD方法, 能有效地分解出信号的固有模态。与EMD 相比较, 该