diameter_cn

这是一个将语音信号通过DPCM编码传输的仿真测试程序，内有详细注释，希望对大家有用。(This is a voice signal transmission through the DPCM code simulation testing procedures, with detailed notes, We hope that the right useful.)

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.)

一个很小和天线计算程序，我觉得非常实用，发上来与大家分享(A very small and the antenna calculation program, I think very useful, the table to share with you)

基于systemview的qpsk原理仿真(qpsk based on the principle of Systemview Simulation)

matlab 波束形成的仿真，包含时域，频域，相移波束形成(Matlab beamforming simulation, including time domain, frequency domain, phase-shifted beamforming)

用于基站定位的RSA算法，采用sdp工具箱求解二次规划问题，增加紧约束条件得到更加精确的MS位置。(The RSA algorithm for base station location uses the SDP toolbox to solve the quadratic programming problem, increasing the tight constraints and obtaining a more precise MS location.)

利用自回归模型产生Rayleigh率落信道(use of regression models have Rayleigh rate charged Channel)

MATLAB，基于GUI的串口的调试工具，并将接收到的数据实时显示在坐标轴上。(MATLAB, the serial port of the GUI-based debugging tools, and data received in real time is displayed in the axis.)

zigbee 2.4GHz 倒F天线设计技术文档(zigbee 2.4GHz Invert F antenna design refrence)

研究信道噪声对M-ary QAM的影响，适合数字通讯从业者(Effect of channel noise on M-ary QAM in)