senting_v69

使用此函数来提取一个地理坐标输入字符串了。该功能非常灵活，因此，协调可能位于任何地方的字符串，并可能有许多的格式之一。(Use this function to extract one geographical coordinate out of an input string. The function is extremely flexible, thus the coordinate may be located anywhere in the string and may have one of many formats.)

MATLAB求解转子动力学方程的状态矩阵的特征值，用在航空专业领域(Rotor dynamics equation solving state eigenvalues)

风力发电系统Matlab仿真，包含定速风机和变速双馈风机(wind power generation system in Matlab, including constant speed generator and DFIG)

SQP算法的matlab实现，包括子程序的实现和整个的大问题，配合使用(The sub-problem of SQP programing)

近红外光谱分析中的BP模型建立过程，其中在原有BP神经网络模型的基础上自己编程加入了近红外模型验证系数的计算，如R-SquareC.R-SquareP,RMSEC,RMSEP,RSD等。并加入循环语句，设定区间程序可以自动运行并判断最佳隐含层结点数，最佳学习速率，动量因子，训练次数等，同时加入一个验证校正模型实例。(The process of BP model in near infrared spectrum analysis, including the original BP neural network model on the basis of their programming joined the nir model validation coefficient calculation, such as R- SquareC. R- SquareP, RMSEC, RMSEP, RSD, etc. And join the loop statement, set interval program can be run automatically and determine the best hidden layer nodes, the optimal learning rate, momentum factor, the number of training, etc. )

ofdm.m为主程序，可以运行，将得到迭加噪声之后的误码率曲线，并与理论QPSK加高斯白噪声误码率曲线比较，两者将重合(ofdm.m-based program, you can run, will be after the noise superposition error rate curve, and with the theoretical QPSK plus white Gaussian noise bit error rate curves, which will coincide)

说明：  遗传算法工具箱formatlab的说明，版本1.2(Genetic Algorithm Toolbox for MATLAB, v1.2)

<<工程与科学数值方法的matlab实现>>此书中的源代码(the source codes for the book <<applied numerical methods with MATLAB for engineers and scienists>>)

comparison between different buck circuits

应用对偶四元素进行组合导航解算，包括姿态解算，速度解算，位置解算(the caculation of strapdown-inertial navigation with dual-quaternion)