chengxu

An attractive mfile code for simulating a piano

Bit Error Probability of BPSK Modulation for AWGN Channel

How a Brushed DC Motor works and rotates

使用matlab编写了SOM算法的实现过程，包括训练过程代码，代码简洁，运行稳定。(Matlab prepared using SOM algorithm implementation process, including the training procedure code, the code is simple, stable operation.)

说明：  最优化算法，使用信赖域法（LM）求解无约束问题。可以实现画出三维图像，通过修改初始点，得到迭代次数和函数值(Optimization algorithm, using LM method to solve unconstrained problems. Three dimensional images can be drawn, and the number of iterations and function values can be obtained by modifying the initial points.)

These notes were prepared from the The CISSP Prep Gu ide: Mastering the Ten Domains of Computer Security by Ronald L. Krutz, Russell Dean Vines, Edward M. Stroz and are not intended to be a replacement to the book.(These notes were prepared from the The CISSP Prep Gu ide: Mastering the Ten Domains of Computer Security by Ronald L. Krutz, Russell Dean Vines, Edward M. Stroz and are not intended to be a replacement to the book.)

：以系统仿真软件MATLAB中的Sin-mlink软件包为工具，完成了通信系统中超外差接收机的动态仿真，并得到了完整的 仿真结果，总结出了利用Sitmdink进行动态仿真的基本方法和步骤。(: A system simulation software in the MATLAB software package for the Sin-mlink tools, completed a communication system in the dynamic simulation superheterodyne receiver, and a complete simulation results, summed up the use of dynamic simulation Sitmdink basic methods and steps.)

说明：  最小二乘法数学程序及其算法仿真，详细说明最小二乘法流程(RLS example Least squares mathematical program and its algorithm simulation, detailing the least squares process)

基于MATLAB的雷达功率孔径积计算程序(RADAR PAP CALCULATE PROGRAM WRITTEN BY MATLAB)

OFDM系统中， LS信道估计 , 基于DFT的信道估计 , 改进的基于DFT的信道估计 , 不进行信道估计 四种情况下的误码率对比(OFDM systems, ' LS channel estimation' , ' DFT-based channel estimation' , ' improve the DFT-based channel estimation' , ' not the channel estimation' error rate of four cases compared)