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本例用matlab语言实现了4QPSK的编解码及通过awgn信道的仿真。采用蒙特卡罗仿真法，得到误码性能，绘制曲线。可用于算法研究或课程学习。(Matlab language used in this case achieved 4QPSK codec and channel through awgn simulation. Monte Carlo simulation method, the BER performance, drawing curves. Algorithm can be used for research or courses.)

最速下降法是一种沿着N维目标函数的负梯度方向搜索最小值的方法。该程序是用最速下降法求无约束最优化解。(Steepest descent method is an N-dimensional objective function along the negative gradient direction of the minimum search method. The program is used steepest descent method for unconstrained optimal resolve.)

说明：  simulation of reed solomon encoder

The NAVSTAR GPS (NAVigation Satelllite Timing And Ranging Global Positioning System) is an all-weather, space-based navigation system developed by the U.S. Department of Defense to determine ones position, velocity, and time accurately in a common reference system on the Earth. The present constellation consists of nominally 24 satellites and provides global coverage with four to eight satellites simultaneously observed above 15 ? elevation.

用MATLAB实现的心形动画，有助于帮助MATLAB函数的理解(Heart-shaped with a MATLAB implementation of the animation, helping to help the understanding of MATLAB Functions)

使用遗传算法优化电动汽车传动比的适应度函数源代码(Genetic algorithm on power-train optimization of EV)

2D FDTD Simulation program implemented in MATLAB

code matlab for cognitive radio )in the spectrum detection (Spectrum Sensing) algorithm simulation

说明：  经典的UPML边界程序，用于电磁仿真，使用的是高斯脉冲(The classic UPML border procedures for the electromagnetic simulation, using a Gaussian pulse)

编程,逆向及数据分析 编程逆向及数据分析. :数据分析的几个方面的经验总结.(Programming, reverse and data analysis 编程逆向及数据分析. Programming of reverse engineering and data analysis :数据分析的几个方面的经验总结. : data analysis of several aspects of the experience )