For the emergence of massive burst amplitude and phase-modulated signals with uncertain modulation type including PSK, APSK, QAM and so on, a universal algorithm is proposed to accomplish the forward carrier phase recovery. Based on the symmetry of constellation, a statistic of wrapped phase is established from the phase information of the constellation points. As a result, the carrier phase blind estimation for unknown burst signals is accomplished regardless of the modulation type and training sequence. Simulations indicate that compared with the current algorithms, the proposed method has better anti-noise ability, flexibility, robustness, making it a good choice for engineering practice of burst signals under non-cooperative condition.
CUI Songqi, AN Jianping, WANG Aihua, et al. Burst signal detection and estimation in low SNR and high dynamic environments[J]. Transactions of Beijing Institute of Technology, 2015(3): 304-309. doi: 10.15918/ j.tbit 1001-0645. 2015.03.017.
LIU Qin, LI Hongxia, LI Zhao, et al. Dynamic spectrum allocation for LTE system by exploiting cognitive capability[J]. Journal of Electronics & Information Technology, 2015, 37(1): 175-181. doi: 10.11999/JEIT140001.
[5]
李智信. 卫星自适应传输中的关键技术研究[D]. [博士论文], 北京邮电大学, 2014.
LI Zhixin. Research on key techniques in adaptive satellite transmition[D]. [Ph.D. dissertation], Beijing University of Posts and Telecommunication, 2014.
[6]
VITERBI A. Nonlinear estimation of PSK-modulated carrier phase with application to burst digital transmission[J]. IEEE Transactions on Information Theory, 1983, 29(4): 543-551. doi: 10.1109/TIT.1983.1056713.
[7]
KAM P Y. Maximum likelihood carrier phase recovery for linear suppressed-carrier digital data modulations[J]. IEEE Transactions on Communications, 1986, 34(6): 522-527. doi: 10.1109/TCOM.1986.1096576.
[8]
MOENECLAEY M and DE JONGHE G. ML-oriented NDA carrier synchronization for general rotationally symmetric signal constellations[J]. IEEE Transactions on Communications, 1994, 42(8): 2531-2533. doi: 10.1109/26.310611.
[9]
GEORGHIADES C N. Blind carrier phase acquisition for QAM constellations[J]. IEEE Transactions on Communications, 1997, 45(11): 1477-1486. doi: 10.1109/26.649778.
[10]
CHEN L, KUSAKA H, and KOMINAMI M. Blind phase recovery in QAM communication systems using higher order statistics[J]. IEEE Signal Processing Letters, 1996, 3(5): 147-149. doi: 10.1109/97.491657.
[11]
CARTWRIGHT K V. Blind phase recovery in general QAM communication systems using alternative higher order statistics[J]. IEEE Signal Processing Letters, 1999, 6(12): 327-329. doi: 10.1109/97.803437.
[12]
SERPEDIN E, CIBLAT P, GIANNAKIS G B, et al. Performance analysis of blind carrier phase estimators for general QAM constellations[J]. IEEE Transactions on Signal Processing, 2001, 49(8): 1816-1823. doi: 10.1109/78.934152.
YANG Faquan. The key techniques and theories research on Modulation recognition for wireless communication signals [D]. [Ph.D. dissertation], Xidian University, 2015.
ZHAO Xiongwen, GUO Chunxia, and LI Jingchun. Mixed recognition algorithm for signal modulation schemes by high-order cumulants and cyclic spectrum[J]. Journal of Electronics & Information Technology, 2016, 38(3): 674-680. doi: 10.11999/JEIT150747.
[15]
刘少林. MPSK信号调制方式识别与参数估计[D]. [博士论文],北京邮电大学, 2015.
LIU Shaolin. Modulation recognition and parameter estimation of MPSK signals [D]. [Ph.D. dissertation], Beijing University of Posts and Telecommunication, 2015.
ZHAO Hailong, ZHANG Jian, and ZHOU Jie. A residual carrier frequency offset tracking algorithm based on constellation characteristics for OFDM systems[J]. Journal of Signal Processing, 2012, 28(2): 207-212.