sem4_ofdm_19th_jan

说明：  一个关于傅里叶变换的学习课件，本人自己制作，课题组内部学习使用。(A study on the Fourier transform of the courseware, I produce their own, learning to use the internal research group.)

将Quaternion四元素坐标系转换为一般的欧拉角坐标系，避免采用反三角函数导致的值域限制问题。参数xi为搜索的精度，对于每个欧拉角可以分别设定，xi越小，搜索越精确。(Quaternion quaternion coordinate system will be converted to general Euler angle coordinate system, avoiding the use of inverse trigonometric functions due to range limitations. The accuracy of the search parameter xi, for each Euler angle can be set separately, xi smaller, more accurate search.)

用来求解某一函数的梯度，维数可以很大，上万维也可以(Used to solve the gradient of a function, the dimension can be large, on the World Wide Web can also be)

将数据调制为wifi传输制式的波形，支持BPSK，QPSK，QAM等调制。配置安捷伦E4438C矢量信号发生器，输出带载波的wifi信号(The data transmission system of the modulation waveform for the wifi support BPSK, QPSK, QAM modulation, etc.. Configure the Agilent E4438C vector signal generator, the output signal with a carrier wifi)

matlab画中国区域图，可以显示每个省会城市名称(matlab China map， can see city name)

ANSYS电磁场分析指南，有关2D的分析。(ANSYS electromagnetic field analysis guidelines for the 2D analysis.)

超宽带UWB室内定位算法,程序，matlab版(Ultra wideband UWB indoor positioning algorithm, program, matlab Edition)

说明：  基于模糊神经网络的仿真历程，以及案例实现(Motor model, program simulation implementation, Simulink simulation based on S-function module, MATLAB simulation environment)

Welch method of spectral estimation.

PLS程序及实例文件汇总 PLS组分选择随机测定(Purpose: randomization test for PLS component selection )