chap17

基于MATLAB的数字签名程序算法要的都来下吧 呵呵(MATLAB-based algorithm for digital signature procedures have come to the right Ha ha under)

读入xls文档，完成对成绩的排序，然后重新写回xls。特点就是 ，可以输入不同的排序标准，完成不同的排序。(Read xls document, complete results of the sort, and then re-write back to xls. Feature is that you can enter a different sort criteria, the completion of a different sort.)

8psk的实现，观察星座图，频谱以及眼图(8psk)

Power flow or load-flow studies are important for planning future expansion of power systems as well as in determining the best operation of existing systems.

普通永磁同步电机的直接转矩控制和基于空间矢量调制的直接转矩控制仿真模型(Direct Torque Control ordinary permanent magnet synchronous motors and direct torque control simulation model based on space vector modulation)

T_XTIDE Tidal prediction YOUT=T_XTIDE(STATION) makes a tidal prediction for the current day using the harmonics file XTIDE. Predictions at other times can be generated using [...]=T_XTIDE(STATION,TIM) where TIM is a vector of matlab-format decimal days ( DATENUM). If TIM is a scalar then it is taken as the number of days present over which to make predictions. If TIM>1000 then it is taken to be the starting time in matlab-format. at the matlab time JD (UTC, but see code for details) where tau = lunar time s = mean longitude of the moon h = mean longitude of the sun p = mean longitude of the lunar perigee np = negative of the longitude of the mean ascending node pp = mean longitude of the perihelion (solar perigee)

一个水箱的控制系统，实现了液位和温度控制，温度采用预测控制。(A water tank in the control system, realized the liquid level and temperature control, temperature using predictive control.)

说明：  3phase inverter current injunction

采用复小波变换提取小波脊线，可较好识别频率(Using complex Wavelet transform Wavelet Ridge can better identify the frequency)

说明：  计算卫星之间的可见性预测时间，输入为卫星六根数(Visibility prediction algorithm between satellites)