Circle_Spectrum

MATLAB code for trajectory smoothing and curvature calculation.

用于自定义文件的路径和分类显示特定类型的文件菜单，适用于matlab GUI设计(for documents from the path definition and classification of specific types of shows the File menu, in Matlab GUI design)

加入3点或5点中值平滑处理后再绘制上述基频曲线与未平滑曲线比较，观测完整一段话音的基频包络变化情况(Add to 3:00 or 5:00 in the value of the smoothing then draw the base frequency curve is not a smooth curve compared with the observed period of complete voice baseband envelope changes)

说明：  matlab在控制系统方面的讲义，供学习参考(matlab lecture notes in control systems for the study reference)

改进的差分进化算法jDE代码，MATLAB代码(Improved differential evolution algorithm jDE code, MATLAB code)

使用摄像头 ，进行手势识别的matlab程序(hands recognition)

通过matlab来生成数字散斑的小程序，通过输入相应参数可以生成不同效果的散斑图。(Through the MATLAB to generate the digital speckle of small procedures, the speckle pattern the corresponding input parameters can produce different effect.)

信号分析示例，包括时域、频域、均方根谱、功率谱、对数谱分析结果，均有相应的图示和注释说明。(Signal analysis of sample, including time domain, frequency domain, the RMS spectrum, power spectrum, the logarithmic spectrum analysis results, have corresponding diagrams and notes.)

机遇matlab软件信号传输模拟，可以模拟卫星信号传输全过程(jiyu matlab ruanjian xionhao )

说明：  利用BP神经网络设计指纹识别算法，给神经网络提供每一模式类中的一些样本作为训练样本。BP网络经过学习，不仅能够识别已训练过的样本，而且能够识别未出现过的样本。利用神经网络的泛化能力，提高指纹识别算法的识别率，图像增强、提取指纹特征(BP neural network is the first mock exam to design fingerprint recognition algorithm, and it provides samples for each neural network as training samples. After learning, BP network can not only recognize the trained samples, but also recognize the samples that have not appeared. The generalization ability of neural network is used to improve the recognition rate of fingerprint recognition algorithm, image enhancement and fingerprint feature extraction)