relationperiod

backstepping example simulink file (matlab)exist in this file

这些是薛定宇控制系统设计书中的各种有用的小程序(Is the Xue Dingyu control system design book the useful program)

设计一个数字滤波器，在频率低于 的范围内，低通幅度特性为常数，并且不低于0.75dB。在频率 和 之间，阻带衰减至少为20dB。 (1)试求满足这些条件的最低阶Butterworth滤波器。(Design a digital filter, in the range of frequencies below the low-pass amplitude characteristic is constant, and not less than 0.75dB. Between the frequency and stop-band attenuation of at least 20dB. (1) Determine the lowest-order Butterworth filter to meet these conditions.)

AR模型，用修正协方差法求谱估计，简单实用。(AR model, with amendments covariance spectral estimation method, simple and practical.)

这是使用MATLAB实现的一个模型解决方法.MATLAB的功能更为强大,可以实现很多模型的设计与模拟.(This is the use of MATLAB model of a solution. MATLAB functions more powerful, Many models can achieve the design and simulation.)

大学生数学建模的书籍以及训练习题，和答案，应该对参赛的选手有一定的帮助。(Mathematical modeling of books and training exercises, and answers for participating players should have some help.)

很多MATLAB的无线系统仿真实例。强烈推荐！(A lot of MATLAB simulation of wireless systems. Strongly recommend!)

本程序包中涵盖了GSM整个通信链路的仿真，对于学习如何搭建通信链路有帮助(This package covers the GSM communication link throughout the simulation, for learning how to build communication links help)

这是一个多目标多参数无约束线性优化程序，其中包括三个具体的应用实例，对于解决非线性优化问题十分好用(This is a multiple target multi parameter non linear constrained optimization program, which includes three specific examples of application, to solve the nonlinear optimization problem is very easy to use)

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)