Eight-mechanical-linkage

rayleigh channel simulation

调制识别是非协作通信中的关键技术之一，在电子对抗、软件无线电等领域 应用十分广泛。该过程介于信号检测与解调之间，由于对传输信号没有过多的先 验信息以及在接收端有很多未知的参数，例如：信号功率，载波频率和相位偏移， 时间信息等，导致对调制方式的盲识别是一项很困难的任务。此外，实际中存在 多径衰落、频率选择性和时变信道等问题，使得这项任务变得更具有挑战性。 (The modulation recognition is one of the key technologies of the non-cooperative communication, such as electronic countermeasures and software defination radio, therefore it is such a significant discipline and orientation in the research of communication field. Obviously, without enough knowledge in transmitter and verified parameters about receivers, for example signal power, carrier frequency and phase offsets and so force, it is hard to get the modulation of blind identification. What is more, for the sake of the multipath fading, frequency-selective and time-varying channels in the real scenarios the task is even harder. )

说明：  本算法为粒子群优化算法，适用于初学者，压缩包中附带了一个基本函数用于实践。(This algorithm is a particle swarm optimization algorithm, which is suitable for beginners. A basic function is attached to the compression package for practice.)

说明：  matlab科学计算的几乎所有数学算法以及仿真。每一个m文件在我学习的时候都验证了其正确性。前面的比较简单，逐步深入。另外对部分算法本人在学习中做了优化，更简洁。(matlab scientific computing almost all mathematical algorithms and simulation. M each file in my learning at all times to verify its correctness. In front of a relatively simple step by step in depth. In addition to some algorithm I have done a study of optimization, a more concise.)

matlab对非线性方程组的求解案例分析，包括多种数值解法的m文件(the matlab case analysis of non-linear equations, including a variety of numerical solution of the m file)

实现GPS/INS组合导航解算位置、速度、航向等参数。输入数据：东向位置、北向位置、航向角（度）、gps速度、陀螺仪角速度、里程计脉冲数(Implement integrated GPS/INS navigation solution position, speed, course and other parameters. Input data: east position, north position, heading angle (degrees), gps speed, angular velocity gyroscope, odometer pulses)

说明：  咬尾卷积码的MATLAB代码，讲的非常详细和深入(Biting tail convolutional code matlab code, said very detailed and in-depth)

it consists of a few tasks designing in matlab

matlab中用矩阵迭代法求解问题的C程序(matrix iteration method)

光伏的数学通用模型。 工程用途，我参考搭建的模型 可以使用。(Universal mathematical model of PV. Engineering purposes)