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一篇讲解FDTD中，隐式格式迭代，总场散射场分离的改进的论文，对于学习总场散射场有重要作用。(FDTD in a brief, implicit iteration, the total field scattered field improved separation of papers, total field scattered field for the study has an important role.)

这是从英文网站上下载的程序，可以实现ofdm整个系统的全过程(This is the English site download procedures, ofdm can be achieved throughout the entire process of the system)

to genrate a hisrogram in matlab

matlab通信信道仿真实验，代码和模块，AWGN信道下的扩频通信仿真，里面有详细的参数设置(matlab communication channel simulation, code and modules, the AWGN channel spread spectrum communication simulation, there are detailed parameter settings)

采用四元数算法，来确定飞行器的姿态状况，同时通过PID方法，调节飞行器的飞行姿态。(Quaternion algorithm to determine the status of the aircraft s attitude, but by PID method, adjusting aircraft flight attitude.)

直流无刷电机带霍尔传感器双闭环的MATLAB仿真，(MATLAB simulation of double closed-loop DC brushless motor)

用matlab制作的小球的平抛运动动画，实现竖直方向速度表示(Ball produced using matlab the flat projectile motion animation, the vertical direction, speed)

说明：  经典图书Courant, Hilbert - Methods of Mathematical Physics 第二卷，50年不倒的经典图书，值得一看，是学习数学物理方法的经典名著(Classic books Courant, Hilbert- Methods of Mathematical Physics II, 50 years will not be brought down classic books, worth a visit is to study methods of mathematical physics classics)

用粒子群算法对非线性系统进行 非线性回归(Using particle swarm algorithm for nonlinear system by nonlinear regression)

在频率域实现信号的频移，然后再变换回时间域的信号(In the frequency domain, the frequency shift signal is achieved, and then transformed back into the time domain signal)