恒虚警下复合载波导航信号联合捕获方法

doi:10.7527/S1000-6893.2014.0285

Abstract

Abstract:

Navigation signal based on compound carrier (NSCC), as a novel signal structure for navigation augmentation, has a special multi-carrier structure and flexible structure parameters, which enable it to possess significant efficiency of navigation augmentation. However, due to the special structure of NSCC, the traditional acquisition algorithms cannot be applied to the NSCC. In this paper, based on the characteristics of NSCC, we propose a kind of joint acquisition method with constant false alarm rate for multi-carrier system by utilizing the known information of NSCC. In this method, the adaptive detection threshold of sub-carrier is set respectively according to its power. Besides, the joint detection is achieved by using the sub-carrier frequency interval to improve the acquisition performance and efficiency. Both the theoretical analysis and simulation results illustrate that the acquisition performance of this method beats the single-carrier signal and the acquisition time is also efficiently reduced as well.

Key words: navigation signal, compound carrier, multi-carrier, constant false alarm rate, joint acquisition, detection performance, acquisition time

CLC Number:

V324.2+4

LUO Ruidan, XU Ying, YUAN Hong. A Joint acquisition method for navigation signal based on compound carrier with constant false alarm rate[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(7): 2381-2390.

References

[1] Pelton J N. Trends and future of satellite communications[M]. New York: International Engineering Consortium, 2013: 533-557.
[2] Cui J X, Shi H L. Satellite communication and navigation integrated signal[J]. TELKOMNIKA Indonesian Journal of Electrical Engineering, 2013, 11(8): 4351-4356.
[3] Garcia-Pena A, Julien O, Macabiau C, et al. FMT signal options and associated receiver architectures for GNSS[C]//Proceedings of IEEE/ION Position Location and Navigation Symposium (PLANS), 2012: 898-912.
[4] Emmanuele A, Luise M, Won J H, et al. Evaluation of filtered multitone (FMT) technology for future satellite navigation use[C]//Proceedings of the 24th International Technical Meeting of the Satellite Division of the Institute of Navigation, 2011: 3743-3755.
[5] Liu X, Liang M, Morton Y, et al. Performance evaluation of MSK and OFDM modulations for future GNSS signals[J]. GPS Solutions, 2014, 18(2): 163-175.
[6] Deng Z, Yu Y, Yuan X, et al. Situation and development tendency of indoor positioning[J]. China Communications, 2013, 10(3): 42-55.
[7] Xu Y, Yuan H. Navigation signal structure based on complex carrier modulation[J]. Science China Physics, Mechanics and Astronomy, 2011, 54(6): 1035-1045.
[8] Zhao S J, Zhao J X. Signal detection and estimation theory[M]. Beijing: Tsinghua University Press, 2005: 452-453 (in Chinese). 赵树杰, 赵建勋. 信号检测与估计理论[M]. 北京: 清华大学出版社, 2005: 452-453.
[9] Axelrad P, Bradley B K. Collective detection and direct positioning using multiple GNSS satellites[J]. Navigation: Journal of the Institute of Navigation, 2012, 58(4): 305-321.
[10] Tong H B, Zhu X W, Zhang G Z, et al. Detection performance analysis of joint acquisition for multi-satellite signals[J]. Journal of Electronics & Information Technology, 2014, 36(5): 1069-1074 (in Chinese). 仝海波, 朱祥维, 张国柱,等. 多卫星导航信号联合捕获算法的检测性能分析[J]. 电子与信息学报, 2014, 36(5): 1069-1074.
[11] Li X J, Xu L P, Zheng W S. Joint code phase acquisition and Doppler frequency shift estimation for GPS sigals[J]. Journal of Astronautics, 2012, 33(12): 1758-1773 (in Chinese). 李小捷, 许录平, 郑文松. GPS信号的码相位与多普勒频率联合捕获[J]. 宇航学报, 2012, 33(12): 1758-1773.
[12] Closas P, Fernandez-Prades C, Fernandez-Rubio J A. Maximum likelihood estimation of position in GNSS[J]. IEEE Signal Processing Letters, 2007, 14(5): 359-362.
[13] Weil L R. A high performance code and carrier tracking architecture for ground-based mobile GNSS receiver[C]//Proceedings of the 23rd International Technical Meeting of the Satellite Division of the Institute of Navigation, 2010: 3054-3068.
[14] Closas P, Fernandez-Prades C, Fernandez-Rubio J A. Cramer-Rao bound analysis of positioning approaches in the GNSS receivers[J]. IEEE Transactions on Signal Processing, 2009, 57(10): 3775-3786.
[15] Tong X J, Luo T. OFDM mobile communication technology principles and applications[M]. Beijing: People Post Press, 2003: 66-68 (in Chinese). 佟学俭, 罗涛. OFDM移动通信技术原理与应用[M]. 北京: 人民邮电出版社, 2003: 66-68.
[16] Spangenberg S M, Scott I, McLaughlin S, et al. An FFT-based approach for fast acquisition in spread spectrum communication systems[J]. Wireless Personal Communications, 2000, 13(1-2): 27-55.
[17] Molino A, Girau G, Nicola M, et al. Evaluation of a FFT-based acquisition in real time hardware and software GNSS receivers[C]//IEEE 10th International Symposium on Spread Spectrum Techniques and Applications, ISSSTA'08, 2008: 32-36.
[18] Borio D, O'driscoll C, Lachapelle G. Composite GNSS signal acquisition over multiple code periods[J]. IEEE Transactions on Aerospace and Electronic Systems, 2010, 46(1): 193-206.
[19] Srinivasan R, Rangaswamy M. Importance sampling for characterizing STAP detectors[J]. IEEE Transactions on Aerospace and Electronic Systems, 2007, 43(1): 273-285.
[20] Xia S Z, Dai F Z, Liu H W. A method of determining detection threshold for bayesian track-before-detection in white complex gaussian noise[J]. Journal of Electronics & Information Technology, 2013, 35(3): 524-531 (in Chinese). 夏双志, 戴奉周, 刘宏伟. 复高斯白噪声背景下贝叶斯检测前跟踪的检测阈值设置方法[J]. 电子与信息学报, 2013, 35(3): 524-531.
[21] Zhang Q W. Random sognal analysis[M]. Xi'an: Xidian University Press, 1984: 128-131 (in Chinese). 章潜五. 随机信号分析[M]. 西安: 西安电子科技大学出版社, 1984: 128-131.
[22] Holms J K, Chang C C. Acquisition time performance of PN spread-spectrum system[J]. IEEE Transactions on Communications, 1977, 25(8): 778-784.

A Joint acquisition method for navigation signal based on compound carrier with constant false alarm rate

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 4

Recommended Articles

Metrics

Comments

[1]	WANG Hongwei, FAN Xiangyu, CHEN You, SONG Haifang, YANG Yuanzhi. Recognition method of multiple LFM signals with WHT based on entropy of slice [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2017, 38(1): 320023-320023.
[2]	WEI Beiyu, ZHU Daiyin, WU Di. Multichannel SAR-GMTI based on clutter cancellation and autofocus [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2015, 36(5): 1585-1595.
[3]	LIU Zheng, ZHANG Yi, FU Qiang. Equivalent Calculation Method for Radar Detection Performance Test [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2012, (5): 902-911.
[4]	Jian Tao;He You;Su Feng;Qu Changwen;Gu Xinfeng. A Novel Adaptive Radar Target Detector for Non-Gaussian Clutter [J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2010, 31(3): 579-586.