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提出了一种差分单项阵空时码,与其他差分空时码的不同在于其MPSK发射信号不具有群的性质,通过简单的表查询和模-加操作运算即可容易地获得差分单项阵空时码的发射信号.文中给出了发射天线数为4的差分单项阵空时码的例子.仿真结果表明,其性能优于传统的差分酉空时码.
A differential single-component space-time code is proposed, which differs from other differential space-time codes in that its MPSK transmitted signal does not have the property of a group. Differential singly-spaced arrays can be easily obtained by simple table lookups and modulo-addition operations Time code, the paper gives an example of the differential singular space-time code with transmitting antenna number 4. The simulation results show that the performance is better than the traditional differential unitary space-time code.