for_help

语音编码，g7.22协议程序很难找的。希望能给使用的人予以帮助 (Speech Coding, g7.22 agreement procedure of hard to find. Hope that they will be used to help people)

幅度和差测角和相位和差测角的MATLAB仿真程序，相位和差测角采用阵列天线，信号采用窄带点频信号，通过直接使用配相和波束形成后的表达式来仿真，幅度和差测角和相位测角类似，只是多了用sinc信号仿真(The difference between the measured amplitude and phase angle and the angle of deviation between the measured and MATLAB simulation program, and the difference between the phase angle measurement using an array antenna, the signal point using narrowband frequency signals, by directly using the distribution phase and beamforming expression after simulation, the amplitude and the difference Similar goniometer and phase angle measurement, but more with the sinc signal simulation)

matlab编写的蚁群算法程序，供大家使用参考。(ant colony algorithm matlab preparation procedures for the use of U.S. reference.)

本代码详细说明了在matlab中,如何求解各种数学中的算法问题,方便了科研人员的使用.(Detailed description of the code in matlab, how to solve mathematical problems in the algorithm and make it easier for researchers to use.)

Matlab code for estimation of Direction of arrival angle

high optics simulation

Delta function and its differential

说明：  在matlab中实现四节点板单元刚度矩阵求解，振动模态分析(Realize the solution of the stiffness matrix of the four-node plate element and the vibration modal analysis in matlab.)

提出了一种基于特征点的全自动无缝图像拼接方法。 该方法采用对于尺度具有鲁棒性的 SIFT 算法进行特征点的提取与匹配， 并通过引导互匹配及投票过滤的方法提高特征点的匹配精确度， 使用稳健的 RANSAC 算法求出图像间变换矩阵H 的初值并使用 LM 非线性迭代算法精炼 H， 最终使用加权平滑算法完成了图像的无缝拼接。

loading a text file from a directory to your workspace in matlab