Joint Carrier Synchronization for PSK Signals From Multiple Independent Antennas and Cramer-Rao Bounds
In this paper, we investigate the PSK parameter estimation problem in antenna arraying system The Cramer Rao lower bounds (CRLBs) for non-data-aided (NDA) BPSIOQPSK frequency and phase estimation using mutual information offered by multipje antenna elements are derived. The results show that the CRLBs become smaller as the antenna number grows, and indicate that utilizing information between antennas is beneficial to parameter estimation. In addition, a joint carrier phase estimator based on maximum likelihood (ML) principle using the mutual information of antenna array elements is presented. Sim ulations show that the proposed estimator improves estimation accuracy, especially at low SNR levels.
Antanna Arraying Carrier Synchronization PSK signal Cramer-Rao Lower Bound phase estimation
Yang Ke Shen Caiyao Yu Hongyi Li Ou
Department of Communication Engineering Zhengzhou Information Science and Technology Institute Zhengzhou,P.R. China
国际会议
2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)
大连
英文
1568-1572
2010-07-05（万方平台首次上网日期，不代表论文的发表时间）