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文中介绍了传统的PID控制原理，PID分为位置式和增量式，计算机控制是数字PID控制。一些 改进的PID控制算法是针对实际应用中的不足提出的，如积分分离式PID控制算法，抗 积分饱和算法，变速积分算法等，实际应用中，控制又分为简单PID控制和串级PID控 制，对一些典型的控制算法，选用典型控制对象用MArLAB软件进行了对应仿真。对仿 真结果进行了对比分析，说明了改进算法的作用。(This paper introduces the principle of the traditional PID control, PID into position and incremental, computer-controlled digital PID control. Some improvements in the PID control algorithm is less than the practical application of the proposed, such as discrete integral PID control algorithm, anti-integral saturation algorithm, changing integration algorithm and so on, practical application, the control is divided into a simple cascade PID control and PID control , for some typical control algorithm, selection of a typical control object MArLAB software with the corresponding simulation. The simulation results of comparative analysis carried out to illustrate the role of the improved algorithm.)

扩频通信仿真系统，包括各个模块的分析编码译码，以及跳频仿真，和同步模块分析(Spread spectrum communication simulation systems, including the analysis of each module)

matlab学习手册是里面内容介绍的很详细，是学习MATLAB很好的学习资料。(matlab manual is inside the content of the study described in great detail, learning MATLAB is a very good learning materials.)

运用四元数方法进行捷联惯性系统的姿态解算，并由加速度计的数据和陀螺的数据计算导航参数(The four element method for strapdown inertial navigation system of the attitude calculation, and the accelerometer and gyroscope data data computation of navigation parameters )

从网上发现的资源能量回馈变频器直接功率转矩控制的仿真(Energy resource feedback from the Internet to simulate the direct power torque control of the inverter)

Fast Sparse LU substitution

一款更加简单直观，通俗易懂的线性调频信号,时域频域图谱的分析，帮助读者更加清晰理解线性调频信号(A more intuitive, user-friendly chirp signal, time domain and frequency domain analysis map to help readers understand more clearly chirp signal)

电力系统暂态分析程序，可以设定故障发生和切除时间，画出发电机的摇摆曲线(Power system transient analysis program, you can set the time of failure and excision, draw the rocking curve of the generator)

PocklingtonPulseSolution calculates the solution to Pocklington s Integral Equation for a straight wire along z-axis.Delta-gap source and Theta-polarized incident plane wave, both types of excitation are optional.

Matlab programs for energy detection