中文说明: MATLAB实现QPSK调制解调假定接收端已经实现载波同步,位同步(盲信号解调重点要解决的问题:载波同步(costas环(未见到相关代码)),位同步(Gardner算法(未见相关代码)),帧同步)
English Description:
MATLAB implementation assumes that the receiver has implemented carrier synchronization QPSK modulation and demodulation, bit synchronization (blind signal key problems to be solved: carrier synchronization (Costas loop (see code), sync (Gardner algorithm (no code), frame synchronization)