摘要
相位模糊问题是相位估计中普遍存在的。文中以CEO(Concentration Ellipse Orientation)盲(非数据辅助)相位估计算法为例,讨论了相位模糊问题,引入了循环域算法,得到了循环域消除相位模糊算法;提出了一种新的消除相位模糊的算法,该算法适用于短突发QAM信号;为了比较相位模糊消除算法的性能,进行了Monte Carlo仿真,从中得出了一些有用结论。
Phase ambiguity occurs frequently in phase estimation. In order to remove phase ambiguity of CEO blind （NDA） phase estimation algorithm, circular area algorithm is introduced and simplified, and a phase ambiguity removal algorithm based on circular area is obtained, a new phase ambiguity removal algorithm suitable for short burst-mode QAM signals is presented. Simulations on Monte Carlo are performed for performance comparison among different phase ambiguity removal algorithms, from which some useful conclusions are drawn.
出处
《通信技术》
2008年第2期7-9,共3页
Communications Technology
基金
河南省自然科学基金(0611051400)
