shiyulisan

Lu decomposition routines in matlab

《射频电路设计——理论与应用》一书课课后习题第一章Matlab程序代码("RF circuit design-- Theory and Application," a book first lesson after lesson Exercises Chapter Matlab code)

说明：  由 得到幅频响应 。系统函数 由下式给出： （A.1） 若 ，则 为一全极点IIR系统，若 ，则 为FIR系统(By the frequency response obtained. System function is given by: (A.1) if, compared to an all-pole IIR system, if, for the FIR system)

模拟整个扩频系统，为学习和设计有关扩频系统提供帮助，里面有信号的发生和接受端信号的捕获，文件夹里面的m文件可直接在matlab上实现(Simulate the spread spectrum system for the study and design of spread spectrum systems to help, there are signal generation and signal capture the receiving end, inside the folder in the matlab m files can be directly implemented on)

介绍了数字通信中的QPSK调制解调的原理，通过用Matlab编写脚本程序对QPSK通信系统的发射和接收过程的具体实现进行模拟仿真，绘出信号在理想信道和加噪信道中模拟传输时的时域图，并对各模块进行了频谱分析，所得到的结果与 理论基本相符，对于理解QPSK系统的性能并在系统的实际应用上作进一步的设计，提供了有效的参考依据。 (The introduction was done with the principle of the QPSK modulation and demodulation in digital communications，a script was written by using Matlab program to CalTy out a simulation of the QPSK communication system．which contains the concrete realization of transmit and receive process．The time-domain diagram is drew separately when the signal transmits in the ideal channel and in the channel with noise，spectral analysis of each module is also done，the results obtained with theoretical results in the main，which provides an effective frame of reference for understanding the performance of QPSK systems，and the practical application in the system to make further designed．)

单源最短路径问题的一种求解算法－Dijkstra算法(Single-source shortest path algorithm A-Dijkstra algorithm)

这是一个关于永磁同步电机矢量控制的simulink模型，可以同过本历程自己修改模块得到自己想要的结果(This is a permanent magnet synchronous motor vector control on the simulink model, you can modify the same over the course of their module get the results you want)

MATLAB做网络优化，先生成一个随机的邻接矩阵，然后画出改图。(MATLAB to do network optimization, sir into a random adjacency matrix, and then draw the reform plan.)

根据描述飞行器在铅垂平面内运动的数学模型，编制某飞行器的铅垂平面飞行轨迹仿真程序。(theflightequation)

OFDM系统中限幅降低峰值与平均功率比的matlab实现，可以直接运行，会有点慢(OFDM system, limiting the peak to average power ratio reduction of the matlab implementation, can run a bit slow)