摘要
本文就GMSK(最小高斯频移键控)调制的原理,给出了一种全数字实现结构并在FPGA上加以实现。仿真结果表明,这种数字实现结构产生GMSK基带信号具有良好的功率谱及眼图,且能够有效避免I/Q两条支路信号幅度及正交载波相位失衡。
In this paper, the design theory of GMSK modulator is analyzed and an improved digital implementation structure is obtained. Then this structure is implemented on FPGA. Simulation results show that GMSK signal generated by the digital implementation structure has nice PSD and eye pattern. Also, the effect of quadrature phase error and amplitude imbalance is avoided.
出处
《船电技术》
2012年第9期50-53,共4页
Marine Electric & Electronic Engineering
