ThinkPHP_3.2.1_20140214

说明：  单频信号经过多径时变信道后，输出信号的包络随时间随机起伏，输出信号的频谱从冲激谱变成一个窄带频谱。径数位20，变化频率从0—2HZ随机均匀抽取。(Single-frequency signal through time-varying multipath channel, the output signal envelope random fluctuations over time, the output signal from the impulse of the spectrum into a narrow-band spectrum spectrum. Digital Drive 20, changes in frequency from 0-2HZ uniform random samples.)

its a useful document about USB2 HOST

北斗卫星接口文件 北斗卫星导航系统 空间信号接口控制文件 （测试版） (Beidou satellite interface file Beidou satellite navigation system space signal Interface Control Document (Beta))

希尔伯特变换测试，使用希尔伯特变换对信号处理，相位偏移90°(The Hilbert transform test uses Hilbert transform to process the signal with a phase shift of 90 degrees)

中继系统中DF和AF两种不同中继方式下性能的比较，对于学习中继的人很好！(Comparison of DF and AF are two different relay mode performance in the relay system for the study of relay good! )

说明：  TDMA的opnet仿真模型，比较简单，适合初学者(TDMA the OPNET simulation model is relatively simple, suitable for beginners)

optisystem7入门中文讲义（网络版）以及Demo(Introduction to Chinese optisystem7 notes (Online))

接受分集中采用选择式合并的函数，输出误码率和信噪比曲线(Acceptance of centralized using selective merge function, the output is bit error rate and SNR curve)

网格编码的16QAM仿真，验证网格编码的增益和误码(grid coding 16QAM simulation, verification grid coding gain and the error)

基于OFDM的单脉冲雷达回波信号极化散射矩阵提取的仿真程序，可以根据角误差提取任意角度的目标PSM。(Extracted emulation program based on OFDM single-pulse radar echo signal polarization scattering matrix can be extracted according to the angle error at any angle of the goal of the PSM.)