2347449

说明：  6. 在三条径的瑞利信道中，对于OFDM： (1) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真。画出比特信噪比与信道估计均方误差的关系曲线和比特信噪比与误码率的关系曲线。 (2) 设频率已同步，请设计OFDM一种具体的采用循环前缀进行时间同步方法，用Simulink进行仿真，画出比特信噪比与捕获概率的关系曲线。 (3) 设时间已同步，请设计OFDM一种具体的采用循环前缀进行频率同步方法，用Simulink进行仿真，画出比特信噪比与频率同步误差的关系曲线。(6. In the three-path Rayleigh channel, for OFDM: (1) please design a specific navigation-assisted channel estimation method and use Simulink for simulation.The relation curves of bit signal-noise ratio and channel estimation mean square error and the relation curves of bit signal-noise ratio and bit error rate are drawn. (2) if the frequency has been synchronized, please design a specific method of time synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit-snr and acquisition probability. (3) if time has been synchronized, please design a specific method of frequency synchronization using cyclic prefix in OFDM. Simulink is used for simulation to draw the relationship curve between bit signal-to-noise ratio and frequency synchronization error.)

说明：  CCSDS推荐的LDPC编码方案，一系列参考标准，很好哦！(CCSDS recommended LDPC coding scheme, a series of reference standards, very good!)

DVB-T（2K模式）同步，仿真最大似然相关（MLE）算法，在符号开始位置出现谱峰(DVB-T (2K mode) synchronization, simulation Maximum Likelihood correlation (MLE) algorithm. Symbol began in the peaks of position)

用于LDPC编码译码的仿真实现。包括随机生成校验矩阵、由校验矩阵产生生成矩阵、编码、加随机噪声、译码等内容。(For LDPC codec simulation. Including randomly generated check matrix, generated by the parity check matrix generator matrix, coding, plus random noise, such as decoding.)

IEC103通讯规约学习心得.doc IEC103通讯规约学习心得(IEC103-learning.doc)

xws-security-3.0 ws安全包3.0版本(xws security 3.0 for development)

MSK调制解调器MATLAB仿真程序，毕设用的，可会知误码率、时域图、频域图(MSK modulation and demodeulation simulate code by MATLAB)

BER for BPSK in ISI channel with Zero Forcing equalization

说明：  使用pyqt5绘制了PLC的人机界面。 可以界面控制PLC运转，并监控点位(The man-machine interface of PLC is drawn with pyqt5. The interface can control the operation of the PLC and monitor the location.)

说明：  LDPC的matlab仿真，使用BP算法，在BPSK调制信道下仿真(Matlab simulation of LDPC, using BP algorithm, simulation under BPSK modulation channel)