make_SNR

设计一个四用户的扩频通信系统，扩频增益为N=16，采用Walsh码进行直接序列扩频，BPSK调制，无线信道为AWGN信道。在接收端进行解扩，解调，判决，通过仿真得到其中一个用户的误比特率与信噪比的仿真结果。(Designed a four-user spread spectrum communication system, spreading gain for N = 16, using Walsh code Direct Sequence Spread Spectrum, BPSK modulation, AWGN channel for the wireless channel. At the receiving end for despreading, demodulation, judgments, through the simulation to be one of a user' s bit error rate and SNR of the simulation results.)

这是有关matlab的编程，值得一看，呵呵呵呵呵呵呵呵(matlab)

OFDM implementation using QPSK

求解双heilder雷电流的微分，该电流为雷电电磁模式常用的继后回击电流，对于模式研究具有重要意义(Solving the differential double heilder lightning current, the current model used for the electromagnetic lightning subsequent return stroke current study has important significance for the mode)

光在格子中传播,前30为有格子，后35为无格子，描述其轨迹(propogaton in lattice for the first 30,there be in lattice and the nex 35 thera is no lattice)

《通信系统仿真原理与无线应用》的matlab()

用于空间数据分析中的Kf计算，并坐车相应的图形(Spatial data analysis for the calculation of Kf, and the corresponding graphic car)

关于扩展卡尔曼的matlab程序 m文件(a file of EKF about pmsm )

用蒙特卡洛方法计算圆周率的程序,可以精确到第四位小数(a mento karlo method compiled in matlab)

自己画的SIMULINK仿真的三个PID控制，以供大家参考。(Use SIMULINK three PID control)