qpsk基带gardner位同步

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! )

2,1,7卷积码译码s-function(2,1,7 Convolutional Decoding s-function)

OFDM系统中的Schmidl、minn、park同步算法仿真包括高斯信道和多径衰落信道。(In OFDM Schmidl, Minn, park synchronization algorithm simulation including the Gauss channel and multipath fading channel)

基于matlab软件的窄带干扰抑制及信号去噪代码(Based on the matlab software narrowband interference suppression and signal denoising code)

对数字信号进行相位幅度调制，并在接收端成功解调(QAM of Digital Signal and Successful Demodulation at Receiver)

说明：  该软件的处理类似于短时傅立叶变换（STFT），但应用了更长、更重叠的分析/合成窗口，使时频处理从根本上对混叠具有鲁棒性。这种差异与非常活跃的时频处理技术有关，例如Dirac或优化的自适应波束形成器。(The software does processing similar to the short-time Fourier transform , but applies the longer and more overlapping analysis/synthesis window to make the time-frequency processing fundamentally robust for aliasing.)

PMA规约模拟测试软件。适合初学者使用，包含几个常用规约(PMA Statute of the simulation test software)

说明：  OFDM通信系统的仿真代码，可用作数字通信的分析参考(The simulation code of OFDM communication system can be used as analysis reference of digital communication.)

实现20m双绞线有线通讯，一端控制另一端小灯亮暗，反过来，一端发送字符，另一端显示浮点数(Realize 20m twisted-pair cable communication, one end controls the light of the other end, conversely, one end sends characters, the other end shows floating-point numbers.)

说明：  最基础的检测概率；虚警概率；漏检概率与门限的关系。(Energy detection;Single threshold.)