Gauss_lengend_pi

用蒙特卡洛方法获取标准正态分布的伪随机数(Generate n samples from a normal distribution)

比较经典格拉姆施密特QR正交分解的matlab源程序(Comparison of the classical Gram Schmidt QR orthogonal decomposition matlab source)

说明：  FFT的MATLAB ，很有学习价值，很实用(FFT in MATLAB, the value of great learning, it is useful)

PSK31 Model with Symbol Timing and Carrier Recovery(This model implements a communication standard known as PSK31. The transmit portion of the model can either synthesize the PSK31 signal, or use real world signals that were captured as Wave files. The receiver features include: Automatic Frequency Control, Automatic Gain Control, Symbol Timing recovery with a fractionally spaced Farrow interpolator, Decision Directed Carrier Phase Lock Loop, dbsk or dqpsk demodulation with FEC. References are provided in the Model.)

对实带通和复基带的MQAM的信噪比进行仿真，绘制信噪比曲线、眼图和星座图，在MATLABR2009b上可正常运行(real bandpass and complex baseband simulation of signal to noise ratio of MQAM, including signal to noise ratio curve drawing, eye diagrams and constellation diagrams, can be run in MATLABR2009b)

matlab中的simulink 编辑的程序，应用于APF仿真(The editors of simulink matlab program, used in the APF simulation )

基于SIMP法的169行连续体结构三维拓扑优化程序，采用优化准则法求解。(A 169 LINE 3D TOPOLOGY OPITMIZATION CODE)

时变信道的频率选择性和时变性。系统的输入是一个BPSK信号。系统的时变特性使BPSK信号作为时间的函数，发生衰减和相位旋转。(Time-varying channel frequency selectivity and time variability. Input to the system is a BPSK signal. System is time-varying characteristics make BPSK signal as a function of time, the occurrence of attenuation and phase rotation.)

forward backward power flow for DSLF the codes are from matwork

低压省煤器相关结构参数的优化程序，使用粒子群优化方法进行优化。(Low pressure economizer structure parameter optimization program, the use of particle swarm optimization method for optimization.)