SIERZHANG

一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。(First, this program uses 16QAM modulation mode, for a string of two binary source is modulated, using (7,4) cyclic code of the source-channel coding to do with a raised cosine roll-off function for base-band modulation, and then transferred to a high frequency channel in the channel by adding Gaussian white noise, the use of matched filter demodulation, demodulation constellation plot, using the minimum Euclidean distance decoding decision, and then right channel signals, decoding, channel coding techniques used to draw and non- channel coding techniques using bit error rate plans.)

OFDM系统完美仿真绝对可用包含星座图，时域频域仿真及传输函数(OFDM system is absolutely perfect simulation can include constellation, time domain simulation and frequency domain transfer function)

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.)

This function can be computed the position of satellites at any desired epoch in the ECEF system using a precise ephemeris file (.sp3).

用这个matlab代码，可以画任意二维曲线，只要修改数据位自己的即可(Use the matlab code, you can draw an arbitrary two-dimensional curve, as long as the modified data bits can be)

一个用于接收机工作特性仿真的MATLAB编制的ROC函数。(An ROC function for MATLAB programming for receiver job characteristics simulation.)

《精通matlab7》 电子工业出版社，王正林，刘明编著，原版光碟。()

说明：  matlab实现模糊神经网的仿真，输出误差等曲线(matlab fuzzy simulation, neural networks, such as the output of the error curve)

simulation simulink block diagram to realize BPSK modulation

matlab6.5的教程（作者：张志涌） 挺有用的(matlab6.5 the tutorial (Author: Zhang Chung) quite used)