Joint ML Iterative Estimation of Carrier Frequency, Phase, Channel for Co-Frequency Signals
-
摘要: 为提高成对载波多址(PCMA)模式下参数估计精度,简化实现流程,提出一种混合信号条件下频偏、相偏、信道联合估计算法。该算法基于最大似然准则,利用数据辅助技术,推导出联合参数估计显性表达式,并给出递归求解方法。对该算法估计性能进行的定量分析表明,估计性能逼近混合信号条件下克拉美罗界(Cramer-Rao bound),能适应频率选择性信道。计算机仿真结果验证了该算法的有效性。
-
[1] DANKBERG M D, MILLER M J, MULLIGAN M G. Self-interference cancellation for two-party relayed communication: US, 5596439[P]. 1997-1-21. [2] 廖灿辉. 卫星同频混合信号的单通道接收处理与应用技术研究[D]. 北京: 清华大学, 2010. LIAO Can-hui. Single-channel processing technology on satellite co-frequency signals and its application[D]. Beijing: TsingHua University, 2010. [3] OERDER M, MEYR H. Digital filter and square timing recovery[J]. IEEE Trans on Commun, 1988, 36: 605-612. [4] KAY S M. A fast and accurate single frequency estimator[J]. IEEE Trans on Acoustic, Speech, and Signal Processing, 1989, 37 (12):1987-1989. [5] FITZ M P. Planar filtered techniques for burst mode carrier synchronization[C]//IEEE GLOBECOM'91. Phoenix, AZ, USA: IEEE Press, 1991. [6] LUISE M, REGGIANNINI R. Carrier frequency recovery in all-digital modems for burst-mode transmissions[J]. IEEE Trans on Commun, 1995, 43(3): 1169-1178.
点击查看大图
计量
- 文章访问数: 4488
- HTML全文浏览量: 142
- PDF下载量: 288
- 被引次数: 0