Book2

说明：  此程序是变型PID控制算法的仿真程序，采用了变速积分方法，系统偏差大时，积分作用应减小，反之应加强。变速积分可以根据系统误差大小改变积分速度，提高了系统品质。(this procedure is a change in the PID control algorithm simulation program using the variable integration method, the system deviation, the integral role should be reduced, on the contrary should be strengthened. Integral variable speed system error can change the size of integration of speed, quality of the system.)

please give matlab coding

This program multiply two matrixes

雷达仿真，计算并绘制某特定频率步进信号的合成HRR轮廓。(Radar simulation, computing and drawing a particular step frequency signal synthesis HRR profile.)

Some paintings lyapunov chaotic attractor and the related terms, while the sub-critical and supercritical classification

针对33节点编写的潮流程序,运用前推回代法，实用性很强(Flow program written for 33 nodes, use push backward substitution method very practical)

chaoslyapunov指数程序是基于非线性三维系统所得，具体模型见东西部能源供需系统文章里，可以得到此系统混沌，因为李亚普诺夫指数有大于零的情形()

说明：  机载雷达多点目标成像，自己根据某型无人机载SAR成像运动补偿研究参数编写的，希望大家指正(Airborne radar multi-target imaging, own a certain type of UAV based on motion compensation of SAR imaging parameters of prepared, I hope you correct me)

This document illustrates SWOT analysis of a telecommunication company namely Telenor Pvt Limited

SATELLITE COMMUNICATION SYSTEMS. its ppt format.basics about SATELLITE COMMUNICATION SYSTEMS