基于TEC曲线拟合的DS/FH跳扩频跟踪技术
Carrier Tacking Technology in DS/FH Spread Spectrum Based on TEC Curve Fitting
DOI: 10.12677/GST.2018.61004, PDF,   
作者: 郭涛涛, 吴 邈：中国电子科技集团公司第二十七研究所，河南 郑州
关键词: DS/FH扩频；载波跟踪；TEC；相位污染；DS/FH Spread Spectrum； Carrier Tracking； Total Electron Content (TEC)； Phase Contamination
摘要: 针对DS/FH跳扩频系统中，不同跳频点在空间信道传输的相移不一致，引起的接收信号相位不连续这一问题，在分析信道传输特性的基础上，根据跳扩频接收信号的特点，提出了一种基于TEC曲线拟合的跳扩频跟踪方法，将电离层非线性相位偏移补偿引入跟踪环路，有效地解决了相位跳变导致的环路失锁的问题，提高了跟踪精度。最后用MATLAB模拟一组仿真数据，用本文所提的方法对电离层相位偏移进行估计，相位估计误差在±10°以内，可以满足跟踪环路的要求。
Abstract: In DS/FH spread spectrum system, different hopping frequency has different phase shift, which leads to the discontinuous phase of the receiving signal. On the basis of analysis of channels’ transfer characteristics, a carrier tacking technology based on TEC curve fitting is proposed which uses the character of the DS/FH receiving signal. The ionosphere phase compensation is imported in the tracking loops, which solves the problem of loop locking caused by the phase hopping. In addition, tacking accuracy is improved. Finally, MATLAB is used to estimate the ionosphere phase compensation by the method proposed in this paper. The simulation results show that, the phase estimation error is within plus or minus 10, which meets the tracking loop requirements.
文章引用：郭涛涛, 吴邈. 基于TEC曲线拟合的DS/FH跳扩频跟踪技术[J]. 测绘科学技术, 2018, 6(1): 26-33. https://doi.org/10.12677/GST.2018.61004

参考文献

[1] 潘点飞, 郝建华, 程乃平. DS/FH测控系统综合性能评估方法研究[J]. 飞行器测控学报, 2013, 32(2): 111-117.
[2] 楼德侃, 李志强, 南海涛. DS/FH信号的测速测距性能分析[J]. 综合电子信息技术, 2013, 39(3): 64-66.
[3] 董汉清. 跳扩频测控信号中伪码同步技术的研究与仿真[D]: [硕士学位论文]. 成都: 电子科技大学, 2013.
[4] Zhan, W., Zhang, X.L. and Chang, X.M. (2012) Impact Analysis on Frequency Hopping to Carrier Tracking Precision in DS/FH Hybrid Spread Spectrum Receiver. Journal of Beijing University of Aeronautics and Astronautics, 38, 1358-1362.
[5] 吴忠祥. 一种跳扩通信系统接收机的捕获抗相位偏移技术的研究与FPGA实现[D]: [硕士学位论文]. 北京: 北京邮电大学, 2014.
[6] 雷静. GPS/北斗定位解算算法的研究[D]: [硕士学位论文]. 哈尔滨: 哈尔滨工程大学, 2013: 35-37.
[7] 庞晶, 刘赢翔, 唐小妹. 高阶BOC信号电离层色散效应的模拟方法[J]. 国防科技大学学报, 2015, 37(6): 74-77.
[8] 时晶晶. 电离层对P波段星载SAR成像影响分析与研究[D]: [博士学位论文]. 安徽: 安徽大学, 2015: 32-36.
[9] 杨旭光, 于长军, 刘爱军. 高频地波雷达垂直向电离层电子浓度估计方法[J]. 电波科学学报, 2016, 31(2): 291-296.
[10] 管明雷, 王英刚, 徐威杰. GNSS导航定位中电离层延迟改正方法[J]. 淮海工学院学报(自然科学版), 2016, 25(1): 56-60.
[11] 杜广超, 张涛涛, 谷晓鹏. 一种基于DSP/BIOS的跳频图案生成方法[J]. 电子信息对抗技术(自然科学版), 2016, 31(2): 74-78.
[12] Chen, P.Y., Li, Y. and Su, Y.M. (2015) Underwater Terrain Positioning Method Based on Least Squares Estimation for AUV. China Ocean Engineering, 29, 859-874. [Google Scholar] [CrossRef] 
[13] Liu, F., Xu, G.H. and Liang, L. (2016) Least Squares Evaluations for Form and Profile Errors of Ellipse Using Coordinate Data. Chinese Journal of Mechanical Engineering, 29, 1020-1028. [Google Scholar] [CrossRef] 
[14] 赵珂, 阳文峰, 谢国锋. 基于非线性取模法构造宽间隔跳频序列[J]. 南昌航空大学学报(自然科学版), 2013, 27(2): 52-57.
[15] Han, H.Y. and Peng, D.Y. (2014) Set of Optimal Frequency-Hopping. Sequences Based on Polynomial Theory. Electronics Letters, 50, 214-219. [Google Scholar] [CrossRef] 
[16] Cheng, T.W., Wang, J., Fan, X., et al. (2013) A Research of Carrier Tracking Loop for High Hopping Rate DS/FH Receiver. Proceedings of 2013 International Conference on Signal Processing, Communication and Computing, Kunming, 5-8 August 2013, 1-5.

为你推荐