mimo

应用MATLAB编程，LTE系统中上行链路SC-FDMA信号生成的程序(Application of MATLAB programming, LTE system uplink SC-FDMA signal generation process)

说明：  基于esprit算法的宽带信号（线性调频信号）doa估计(DOA estimation based on esprit)

这是opnet 建立无线网络模型的教程,对于初学opnet仿真的学者很有帮助(This is set up a wireless network model of OPNET tutorial for beginners and scholars OPNET Simulation helpful)

说明：  generate prbs pattern

功率谱密度的估计算法，simulink实现，现代信号处理第三章仿真实现。(Power spectral density estimation algorithm, simulink realization of modern signal processing Chapter Simulation.)

中国电信CDMA终端需求规范 数据终端AT命令接口分册 (China Telecom CDMA terminal needs AT command interface specification data terminal branch)

对当前通信信号中常用的数字调相信号BPSK、QPSK、1／4一QPSK、8PSK的调制识别问题，提出了一种基于信号差分高阶累积量的识剐算法。该算法分两个层次进行调制识别，首先利用信号的四阶累积量特征对BPSK、QPSK和{1／4一QPSK、8PSK}信号进行识别，然后再利用信号差分的四阶和八阶累积量特征对1/4-QPSK、8PSK信号进行识别。从理论上分析了的该算法的有效性，并通过计算机仿真验证了算法具有良好的性能。(A recognition algorithm based on differential high-order cumulant is proposed for the modulation recognition problems of BPSK, QPSK, 1/4-QPSK and 8PSK, which are commonly used in current communication signals. The algorithm is divided into two levels for modulation recognition. Firstly, BPSK, QPSK and {1/4-QPSK, 8PSK} signals are identified by using the fourth-order cumulant characteristics of signals, and then 1/4-QPSK and 8PSK signals are identified by using the fourth-order cumulant and eighth-order cumulant characteristics of signal difference. The validity of the algorithm is analyzed theoretically, and the good performance of the algorithm is verified by computer simulation.)

说明：  GPS信号模拟软件，模拟GPS设备向串口输出0183格式标准语句，配合串口虚拟工具使用，可以在普通电脑上调试(GPS signal simulation software, which simulates GPS equipment to output 0183 standard statements to serial port, can be debugged on ordinary computer with serial virtual tools.)

massive MIMO 系统的各种性能仿真(Performance simulation of massive MIMO system)

Spring框架整合Quartz,使用javamail定时发送邮件(The Spring framework integration of Quartz, use javamail regularly send mail)