ccdf

数学建模赛题的Matlab解决程序，模拟车灯的映照情况(Mathematical Modeling Contest in the Matlab problem solving program to simulate the reflection of light conditions)

比较采用干扰消除和无干扰消除的V-BLAST系统误帧率与SNR的关系曲线。系统参数：收发天线个数M=4，N=6；设定发送信号总功率P=1；设定每一帧中的符号数Nframe=100；调制方式为16QAM；信道为不相关瑞利衰落信道。(Was used to compare the interference canceller and V-BLAST system without interference cancellation, the frame error rate and SNR curve. System parameters: the number of transmit and receive antennas M = 4, N = 6 set to send the signal power P = 1 set the number of symbols in each frame Nframe = 100 modulation for 16QAM channel is not related to Rayleigh fading channel.)

利用matlab实现svm函数包的调用，在人脸数据库yale上进行人脸识别(using matlab to apply function svm to achive scan face on the data of yale )

这是考虑光信道色散，对输入信号的影响，结果仿真了功率谱密度(This is to consider chromatic dispersion of the optical channel, the input signal, the results of simulation of the power spectral density)

1、观察采样引起的混叠。 2、判别离散时间系统的时不变性。 3、利用卷积计算信号通过FIR滤波器的输出，并观察输出信号的input-on暂态、input-off暂态和稳态阶段。 (One to observe the sampling due to aliasing. 2, determine the time invariant discrete-time systems. 3, the use of convolution calculation of the signal through the FIR filter output, and observe the output signal of the input-on transient, input-off transient and steady-state phase.)

说明：  matlab 的详细讲解例程,图文并茂，适合初学者使用。(A brief introduction about matlab.)

vong khoa PLL with matlab

(1>分析低压微电网中逆变器输出阻抗特性，采用了虚拟阻抗的控制方法对逆变器输出阻抗进行构造，又从微电网本身特点考虑，构造逆变器的输出阻抗为阻性，使得Pv/QF的反下垂控制方法可以被合理使用。 (2>对逆变器功率外环进行小信号建模，分析当输出阻抗性质发生变化时系统(1 Analysis of low voltage microgrid inverter output impedance characteristics, the control method of virtual impedance of the structure on the output impedance of the inverter, and the characteristics of micro grid is considered, the output impedance of inverter structure for resistance, the Pv/QF control method of anti sag can be reasonable use. 2 of the inverter power outer loop small signal modeling, analysis the characteristics of output impedance changes the system)

说明：  matpowe7.0,Open source software, no modified version downloaded from the official website,the new MOST can calculate timing OPF,but the DC model may not be accurate

ser的比较实现基于mmse_mse和LS_mse (SER compare)