CNN

cohen类信号的双线性信号时频分析，page分布，该函数用于计算离散时间信号X的page分布，或良信号的互page表示。(cohen category signals bilinear time-frequency analysis, page distribution, the function used to calculate the discrete-time signal X s page distribution, or good signal that each page.)

Bayesian Model Selection

说明：  三维双凹激光振荡，采用菲涅尔衍射和fox-li方法，得到两维幅度和相位输出。(Three-dimensional double-concave laser oscillation, using Fresnel diffraction and the method of fox-li, the two-dimensional amplitude and phase output.)

要求设计一个基于颜色直方图的图像检索系统。该系统能够实现对图像的检索功能，例如，在一万幅图像中搜索出与检索图像相似的图像，依相似程度的大小显示出来。最后用查全率和查准率对系统进行评估。(To design a color histogram based image retrieval system. The system can realize the image search function, for example, a square image search and retrieval of an image similar to the image size according to the degree of similarity is displayed. Finally, recall and precision to evaluate the system.)

多项式拟合多项式拟合多项式拟合多项式拟合多项式拟合多项式拟合多项式拟合多项式拟合多项式拟合(Polynomial polynomial polynomial polynomial polynomial polynomial polynomial polynomial polynomial fitting)

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 three phenomena, aliasing : continuous signal sampling, requiring continuous signal is band-limited, the sampling frequency should be high enough. Fs meet the Nyquist Sampling Theorem would not have aliasing. Sampling former low-pass filter plus anti-aliasing 2, spectrum leakage : DFT right time domain signal a disconnect (equivalent to a sampling signal by a window function). time domain is equivalent to the product of frequency-domain convolution, changes in the spectrum of the original signal. Window functions to switch to other (non-rectangular) to improve leakage. 3, fenced phenomenon : DFT spectrum is given only at the sampling point value, sampling points of the spectrum as lost.)

Apple Motion Sensor driver (PMU variant).

创建一个CIFAR10DATA需要用到的一个matlab基础函数，可能系统版本中没有需要自行编写。(CREAT a CIFAR10DATA set,it may not excise in u matlab,need edit by youself.)

语音信号处理中基音检测源程序，用matlab实现的。主要应用了改进的自相关技术。(Pitch detection in speech signal processing source code, using matlab be achieved. Major applications to improve the self-related technologies.)

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