fast Fractional Fourier Transform

常微分方程的处置问题的源代码，matlab编写的，值得收藏，欢迎大家踊跃下载，为中国的科研事业做贡献(The disposition of ordinary differential equations of the source code, matlab prepared and worthy of collection, enthusiastically welcomed the U.S. download, in order to make China' s contribution to the cause of scientific research)

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matlab编制的，用GP算法计算关联维数，希望有用(Using matlab prepared, calculated correlation dimension algorithm with GP, hope useful)

以捷联惯性导航系统为主，添加里程计、卫星成为组合导航的半实物仿真程序(integrated navigation)

先进PIDmatlab仿真程序，模糊PID控制仿真程序(Advanced simulation program PIDmatlab, fuzzy PID control simulation program)

该程序在matlab环境下运行可完成QPSK的调制解调过程，可显示眼图以及滤波后的信号波形。(err)

matlat 环境下haar小波分析，可以改写成C 语言 (haar wave analysis)

獲取windows系統硬盤的一些信息，可以獲取到SN,FW,MODEL,等等信息(Get some information windows system hard disk, you can get to the SN, FW, MODEL, and so forth)

认知无线中的能量检测，仿真了高斯信道和瑞利信道的检测概率、虚警概率与判决门限的关系曲线以及两者之间的关系曲线(The detection probability, false alarm probability and the decision threshold of the Gauss channel and the Rayleigh channel are simulated by the energy detection in cognitive radio.)

基本定位算法的MATLAB代码，包括LTE定位参考信号及时延估计方法( The basic localization algorithm MATLAB code, including LTE location estimation method and delay the reference signal)