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详细介绍了系统动力学仿真软件vesim的中文用户手册。

说明：  对于支持多种调制方式的通信系统来说，接收信号调制方式的自动识别是不可或缺的功能之一。论文研究了 六种常见的数字调制信号，提取出五种特征参数，并针对瞬时相位和瞬时频率特征参数的提取做出了改进。采用BP神经网 络算法进行自动识别，在高斯白噪声环境下仿真,(For the communication system supporting multiple modulation modes, the automatic recognition of the modulation mode of the received signal is one of the indispensable functions. This paper studies six kinds of common digital modulation signals, extracts five kinds of characteristic parameters, and improves the extraction of instantaneous phase and instantaneous frequency characteristic parameters. BP neural network algorithm is used for automatic recognition, and simulation is carried out in the Gauss white noise environment,)

说明：  sinusoidal pulse width modulation

李莉老师讲解的OFDM课件和源码,帮助初学者更好的理解ofdm(Some of the OFDM documents collected can be used as a reference for OFDM simulation learning)

matlab语法与绘图(新) 内附大量由matlab所画图片-Matlab Grammar and Mapping (new) contains a large number of pictures drawn by Matlab

HIT numerical analysis

输入两个数，求这两个数之间的位数和为5 的个数，和可以修改，两个数任意输入(Input two numbers, find the number of digits between the two numbers and the number of 5, and can be modified, two numbers arbitrary input)

说明：  该程序可以计算雷达、SAR点目标的峰值旁瓣比和积分旁瓣比，一维和二维！(The program can calculate the peak side lobe ratio and integral side lobe ratio of radar and SAR point target, one dimension and two dimension!)

采用自稳定域法分析二姐系统稳定性，并使用simulink仿真(Adopted sister from the stable region system stability analysis and simulation using simulink)

it is useless, i am very sorry