摘要
以FPGA为平台,提出了一种小波多速率调制同步系统的硬件实现方案。利用最大似然估计算法,采取帧同步与载波相位恢复相结合的方式,解决了小波调制在同步上对定时误差敏感等问题,同时也可以对假同步进行检测和纠正。仿真结果证明了该方案的可行性和有效性。
Based on FPGA , a scheme of hardware implementation for the synchronization system of wavelet - based multirate modulation is proposed in this paper. A problem of false synchronization and high sensitivity to timing error, the cartier phase recovery was combined with frame synchronization on the basis of maximum likelihood （ ML - ） estimation, and the false synchronization can be detected and corrected as well The simulation results indicate the availability and efficiency of our scheme.
出处
《信阳农业高等专科学校学报》
2009年第1期138-140,共3页
Journal of Xinyang Agricultural College
关键词
FPGA
小波多速率调制
假同步
FPGA
wavelet - based multirate modulation
false synchronization
