二進(jìn)制偏移載波及其衍生信號的通用無模糊捕獲算法
doi: 10.11999/JEIT160351
國家自然科學(xué)基金項(xiàng)目(61371164),信號與信息處理重慶市市級重點(diǎn)實(shí)驗(yàn)室建設(shè)項(xiàng)目(CSTC2009CA2003),重慶市杰出青年基金項(xiàng)目(CSTC2011jjjq40002),重慶市教育委員會科研項(xiàng)目(KJ130524),重慶市研究生科研創(chuàng)新項(xiàng)目(CYS14140)
Unambiguous General Acquisition for Binary Offset Carrier and Its Derivative Signals
The National Natural Science Foundation of China (61371164), The Project of Key Laboratory of Signal and Information Processing of Chongqing (CSTC2009CA2003), The Chongqing Distinguished Youth Foundation (CSTC2011jjjq40002), The Research Project of Chongqing Educational Commission (KJ130524), The Graduate Research and Innovation Projects of Chongqing (CYS14140)
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摘要: 針對目前對二進(jìn)制偏移載波(Binary Offset Carrier, BOC)及其衍生信號的通用無模糊捕獲分析匱乏的問題,該文提出一種適用于所有BOC類型信號及所有調(diào)制階數(shù)的無模糊捕獲算法。該算法首先根據(jù)不同調(diào)制信號副載波形之間的聯(lián)系構(gòu)建出了通用副載波模型,得到信號的通用表達(dá)式,然后在此基礎(chǔ)上將副載波形按半周期進(jìn)行分解,再根據(jù)相關(guān)函數(shù)的合成方法構(gòu)建出通用的捕獲方法。理論與仿真實(shí)驗(yàn)表明,新提出的捕獲方法適用于所有類型及所有調(diào)制階數(shù)的BOC信號,能夠完全消除副峰,實(shí)現(xiàn)無模糊捕獲,捕獲精度以及抗多徑性能相比其他算法都有很大提高。
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關(guān)鍵詞:
- 二進(jìn)制偏移載波 /
- 通用副載波模型 /
- 無模糊捕獲 /
- 合成相關(guān)函數(shù) /
- 捕獲精度
Abstract: For the unambiguous general acquisition for Binary Offset Carrier (BOC) and its derivative signals is still scarce of analysis, a new unambiguous algorithm is proposed for all types of BOC signals and all kinds of modulation order. Firstly, the common sub-carrier model is constructed according to the links of different sub-carrier modulation. Then according to the common sub-carrier model the general expression of the signals is got. On this base, the sub-carrier is broken down into many half periods. Last, a general capture method based on a combined correlation function is proposed. Simulation results indicate that the proposed method can deal with all kinds of BOC modulated signals including complex ones with different phases or orders. An unambiguous correlated function can be obtained by the proposed method. The main peak width of correlated function is narrowed and the accuracy of capture is improved. -
寧津生, 姚宜斌, 張小紅. 全球?qū)Ш叫l(wèi)星系統(tǒng)發(fā)展綜述[J]. 導(dǎo)航定位學(xué)報(bào), 2013, 1(1): 3-8. doi: 10.3969/j.issn.2095-4999. 2013.01.002. NING Jinsheng, YAO Yibin, and ZHANG Xiaohong. Review of the development of global satellite navigation system[J]. Journal of Navigation and Positioning, 2013, 1(1): 3-8. doi: 10.3969/j.issn.2095-4999.2013.01.002 BETZ J W. Binary offset carrier modulations for radio navigation[J]. Navigation, 2001, 48(4): 227-246. doi: 10.1002/ j.2161-4296. 楊宜康, 彭澎, 易國鍇, 等. 基于掃頻二進(jìn)制偏移副載波的偽碼擴(kuò)頻調(diào)制體制及其特性的研究[J]. 電子與信息學(xué)報(bào), 2015, 37(3): 637-642. doi: 10.11999/JEIT140824. YANG Yikang, PENG Peng, YI Guokai, et al. A novel pseudo-code spread spectrum modulation scheme of frequency chirp binary offset carrier and its characteristics[J]. Journal of Electronics Information Technology, 2015, 37(3): 637-642. doi: 10.11999/JEIT140824. ZITOUNI S, ROUABAH K, CHIKOUCHE D, et al. General analytical models characterizing MBOC modulated signal[J]. Aerospace Science Technology, 2016, 50(46): 112-126. doi: 10.1016/j.ast.2015.12.027. 周艷玲, 羅雪姣, 溫小清, 等. 衛(wèi)星導(dǎo)航信號AltBOC調(diào)制方式分析[J]. 湖北大學(xué)學(xué)報(bào):自然科學(xué)版, 2015, 37(4): 334-339. doi: 10.3969/j.issn.1000-2375.2015.04.007. ZHOU Yanling, LUO Xuejiao, WEN Xiaoqing, et al. Analysis of satellite navigation signal alternate binary offset carrier modulation[J]. Journal of Hubei University (Natural Science), 2015, 37(4): 334-339. doi: 10.3969/j.issn.1000-2375.2015. 04.007. FUNE P and WILSON W. Tracking algorithm for GPS offset carrier signals[C]. National Technical Meeting of the Institute of Navigation. San Diego, CA, USA, 1999: 671-676. 符強(qiáng), 王華俊, 紀(jì)元法, 等. BOC 信號無模糊捕獲方法研究進(jìn)展[J]. 現(xiàn)代防御技術(shù), 2013, 41(2): 91-96. doi: 10.3969/ j.issn.1009-086x.2013.02.016. FU Qiang, WANG Huajun, JI Yuanfa, et al. Research development of unambiguous acquisition method of BOC signal[J]. Modern Defence Technology, 2013, 41(2): 91-96. doi: 10.3969/j.issn.1009-086x.2013.02.016. BURIAN A, LOHAN E S, and RENFORS M. BPSK-like methods for hybrid-search acquisition of galileo signals[C]. IEEE International Conference on Communications, ICC'06, Istanbul, Turkey, 2006: 5211-5216. FISHMAN P M and BETZ J W. Predicting performance of direct acquisition for the M-code signal[C]. 2000 National Technical Meeting of the Institute of Navigation. Anaheim, CA, USA, 2000: 574-582. MARTIN N, LEBLOND V, GUILLOTEL G, et al. BOC (x, y) signal acquisition techniques and performances[C]. Institute of Navigation GPS/GNSS 2003, Portland, OR, USA, 2003: 188-198. JULIEN O, MACABIAU C, CANNON M E, et al. ASPeCT: unambiguous sine-BOC(n, n) acquisition/tracking technique for navigation applications[J]. IEEE Transactions on Aerospace and Electronic Systems, 2007, 43(1): 150-162. doi: 10.1109/TAES.2007.357123. 阮航, 劉峰, 鄭舟, 等. 一種基于偽相關(guān)函數(shù)的CBOC信號跟蹤方法[J]. 北京理工大學(xué)學(xué)報(bào), 2014, 34(3): 316-321. doi: 10.15918/j.tbit 1001-0645.2014.03.019. RUAN Hang, LIU Feng, ZHENG Zhou, et al. An approach of CBOC signal tracking based on pseudo correlation function[J]. Transactions of Beijing Institute of Technology, 2014, 34(3): 316-321. doi: 10.15918/j.tbit 1001-0645.2014.03. 019. KIM S, CHONG D, SUN Y K, et al. An improved timing synchronization scheme for BOC signals[C]. Signal Processing and Information Technology, Giza, Egypt, 2007: 710-714. 任嘉偉, 楊貴同, 賈維敏, 等. BOC信號合成相關(guān)函數(shù)通用無模糊跟蹤方法[J]. 航空學(xué)報(bào), 2014, 35(7): 2031-2040. doi: 10.7527 /S1000-6893.2014.0012. REN Jiawei, YANG Guitong, JIA Weimin, et al. Unitary unambiguous tracking method based on combined correlation functions for BOC modulated signals[J]. Acta Aeronautica et Astronautica Sinica, 2014, 35(7): 2031-2040. doi: 10.7527 /S1000-6893.2014.0012. 周驥, 郭承軍, 曹建蜀, 等. GNSS CBOC信號快速無模糊度捕獲算法研究[J]. 信號處理, 2015, 31(7): 876-882. ZHOU Ji, GUO Chengjun, CAO Jianshu, et al. Fast unambiguous acquisition method for GNSS CBOC signal[J]. Journal of Signal Processing, 2015, 31(7): 876-882. -
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