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This is the CRB caculated for an OFDM system to compair belind channel estimation. CRB is Cramer Rao bound and it is the lowest bound for analyzing the devlopement of algorithms of channel estimation.

产生白噪声序列( Generate a pseudo-noise)

数值求解广义非线性薛定谔方程来仿真模拟超短脉冲在光纤中的拉曼自频移现象(The generalized nonlinear Schrodinger equation is solved numerically to simulate the Raman self frequency shift of ultrashort pulses in fiber.)

基于对蓄电池充电，并且能够实现逆变包含SVPWM模块，而且包含DC/DC模块。可实现整流逆变双向。(Based on the battery charge, and can achieve SVPWM inverter module contains, and includes DC/DC module. Enables bidirectional rectifier inverter.)

IIR Filter, hope it is useful

说明：  粒子群算法解决VRP代码（matlab）(Particle swarm algorithm to solve VRP code (matlab))

介绍粒子群算法的一种改进算法的实现代码，具有很大的参考意义。(Introduce particle swarm algorithm is an improved algorithm implemented code, is of great referential significance. )

基于simulink的西门子标准400V低压馈线模型，其中包含一个PV光伏并网模型(Based on the the simulink Siemens standard 400V low voltage feeder model, which contains a PV photovoltaic grid model)

在有限的区域内，根据所给的边界条件，用matlab画出电场的电势图(Within a limited area, depending on the given boundary conditions, using matlab potential diagram drawn farm)

design of simullink of dc transmission line