test7

关于MIMO-OFDM的信号检测方法，ML检测(Signal detection method for MIMO-OFDM, ML detection)

this document gives the basics of gprs concepts in gerat detail

说明：  多频移键控，水声通信代码，实现水下通信。。(Multi-frequency shift keying, underwater acoustic communication code, underwater communication)

电话集团交换机的一些组成部分和工作原理,了解交换机的基本常识()

qpsk完整解调，包括载波同步，位同步采用迟早门，载波同步采用判决反馈(qpsk complete demodulation, including the carrier synchronization, bit synchronization using the door sooner or later, the use of decision feedback carrier synchronization)

模拟调制识别各特征参数随信噪比变化曲线。信号的瞬时信息包括瞬时幅度、瞬时相位、瞬时频率及其不同角度的统计特征值，其中瞬时幅度、瞬时相位、瞬时频率是一个信号最基本的特征。（AM、DSB、SSB、VSB、FM、AM-FM）(Simulated Modulation Recognition Curve of Variation of Characteristic Parameters with Signal-to-Noise Ratio)

pppoe常见故障分析,电信故障排除所需要的PPPOE知识(pppoe common fault analysis, telecommunications, troubleshooting knowledge required for PPPOE)

模拟移动公司的能力平台的rest接口，接口地址除IP和端口外，其它完全一致(Analog Mobile Corporation capabilities platform rest interface, interface address except IP and port, and other completely identical)

基于周立功USBCAN模块通信的上位机应用软件(CANTest communication module)

说明：  In order to solve the problem of low bandwidth utilization while the peak-to-average power ratio(PAPR) is reduced.