long_gratings

基于matlab的锁相环（PLL）仿真源代码(Matlab based on the phase-locked loop (PLL) simulation source code)

说明：  一个经典的宽带多位sigma delta调制器设计，较为好用(More than a classic sigma delta modulator broadband design, the more useful)

美国加利福尼亚大学的garch计算工具包(The GARCH toolbox from university california)

可以用于机械结构中个机构或零件的优化分析，设计计算等，还可以用于其他非机械类专业人员学习参考(Can be used to analyze the mechanical structure optimization in a body or parts, design calculation and so on, can also be used for other non mechanical majors learning reference)

There 5 files in the zip.It includes Simulink models.I can upload Simulink files regularly

说明：  基于matlab的多道地震信号合成，涉及雷克子波与反射系数，还有地震信号的加噪与去噪(Multichannel seismic signal synthesis based on matlab involves Rayleigh wavelet and reflection coefficient, as well as noise addition and denoising of seismic signal.)

该程序提供了多种参数的双指数脉冲函数的波形及其频谱分解图，要注意的是作图时坐标比例尺的调整。程序中给出的是1.2/50μs和0.7/60ns两种波形可直接使用的坐标比例尺。 在MATLAB5.0下就能工作。 (The program provides a wide range of parameters of double-exponential pulse function waveform and its spectral decomposition diagram, it should be noted that when mapping coordinates scale adjustments. Procedure is given in 1.2/50μs and 0.7/60ns two waveforms can be directly used the coordinates of scale. Will be able to work under in MATLAB5.0.)

人脸检测 matlab程序 程序简单精炼 适合初步入门人脸检测的初步学习(face detection program)

用matlab实现了彩色图像的缩放，采用的是双线性插值算法！(Matlab achieved using the zoom color images, using bilinear interpolation algorithm!)

采用卡尔曼滤波的阻尼系数的非线性估计：用于较小但未知阻尼系数，增强阻尼因子的可测性(This implementation uses lower (but unknown)damping to improve damping observability.)