《電子技術(shù)應(yīng)用》
您所在的位置:首頁(yè) > 通信與網(wǎng)絡(luò) > 設(shè)計(jì)應(yīng)用 > Galileo E6B/C信號(hào)接收機(jī)設(shè)計(jì)
Galileo E6B/C信號(hào)接收機(jī)設(shè)計(jì)
2020年電子技術(shù)應(yīng)用第11期
何旭蕾1,,2,,劉 成3,王 威3,,李 健1,,劉學(xué)勇1,,楊 穎1,,巴曉輝1,,2,陳 杰1
1.中國(guó)科學(xué)院微電子研究所,,北京100029,;2.中國(guó)科學(xué)院大學(xué),北京100049,;3.中國(guó)衛(wèi)星導(dǎo)航工程中心,,北京100094
摘要: Galileo系統(tǒng)通過(guò)E6B/C信號(hào)提供精密單點(diǎn)定位服務(wù)和身份驗(yàn)證服務(wù)。2019年1月歐盟公布了Galileo系統(tǒng)E6B/C信號(hào)的擴(kuò)頻碼,,參考?xì)W盟發(fā)布文件,,對(duì)E6B/C信號(hào)的載波頻率、調(diào)制方式,、主碼,、二級(jí)碼、數(shù)據(jù)編碼方案和電文結(jié)構(gòu)進(jìn)行了描述,。設(shè)計(jì)了E6B/C信號(hào)捕獲跟蹤方案,,通過(guò)短時(shí)相關(guān)結(jié)合FFT的方案對(duì)天空中的Galileo衛(wèi)星E6B/C信號(hào)進(jìn)行捕獲,并用窄帶寬帶功率比方法和矩方法估計(jì)E6C和E6B的載噪比,。同時(shí)對(duì)當(dāng)前衛(wèi)星播發(fā)的E6B電文信息進(jìn)行了分析,,分析結(jié)果表明當(dāng)前Galileo的E6B信號(hào)還未開(kāi)始提供PPP服務(wù)。
中圖分類號(hào): TN911.6,;P228.4
文獻(xiàn)標(biāo)識(shí)碼: A
DOI:10.16157/j.issn.0258-7998.200220
中文引用格式: 何旭蕾,,劉成,王威,,等. Galileo E6B/C信號(hào)接收機(jī)設(shè)計(jì)[J].電子技術(shù)應(yīng)用,,2020,,46(11):8-11,17.
英文引用格式: He Xulei,,Liu Cheng,,Wang Wei,et al. The design of Galileo E6B/C receiver[J]. Application of Electronic Technique,,2020,,46(11):8-11,17.
The design of Galileo E6B/C receiver
He Xulei1,,2,,Liu Cheng3,Wang Wei3,,Li Jian1,,Liu Xueyong1,Yang Ying1,,Ba Xiaohui1,,2,Chen Jie1
1.Institute of Microelectronics of Chinese Academy of Sciences,,Beijing 100029,,China; 2.University of Chinese Academy of Sciences,,Beijing 100049,,China;3.China Satellite Navigation Office,,Beijing 100094,,China
Abstract: Galileo system provides commercial services including precise point positioning and authentication through E6B/C signals. In January 2019, the European Union announced the spreading code of the Galileo system′s E6B/C signal. This article refers to the European Union′s published document of the E6B/C signal and describes the carrier frequency, modulation scheme, primary codes, secondary codes, data coding scheme, and message structure. This article introduces the scheme of acquisition and tracking of the E6B/C signal, which acquires the E6B/C signals in the sky through the short-time correlation and FFT scheme,then uses the narrowband-wideband power ratio method and moments method to estimate the CNR of E6C and E6B.At the same time, this paper analyzes the current E6B message information that transmitted by current satellites. It shows that Galileo′s E6B signal has not yet started to provide PPP services.
Key words : E6B/C;receiver design,;short-time correlation and FFT,;CNR estimation

0 引言

    伽利略(Galileo)是由歐盟研制和建立的全球衛(wèi)星導(dǎo)航系統(tǒng),提供開(kāi)放服務(wù)(Open Service,,OS),、商業(yè)服務(wù)(Commercial Service,CS),、公共特許服務(wù)(Public Regulated Service,,PRS)和搜尋救援服務(wù)(Search and Rescue Service,SAR),。當(dāng)前天空中有26顆中圓地球軌道衛(wèi)星(Medium Earth Orbit,,MEO),包括22顆FOC(Full Operational Capability)衛(wèi)星和4顆IOV(In-orbit Validation)衛(wèi)星,目前26顆衛(wèi)星中有22顆可用衛(wèi)星和4顆不可用衛(wèi)星[1],。表1列出了Galileo系統(tǒng)播發(fā)信號(hào)的基本情況,。




本文詳細(xì)內(nèi)容請(qǐng)下載:http://forexkbc.com/resource/share/2000003039




作者信息:

何旭蕾1,2,,劉  成3,,王  威3,李  健1,,劉學(xué)勇1,,楊  穎1,巴曉輝1,,2,,陳  杰1

(1.中國(guó)科學(xué)院微電子研究所,北京100029,;2.中國(guó)科學(xué)院大學(xué),,北京100049;3.中國(guó)衛(wèi)星導(dǎo)航工程中心,,北京100094)

此內(nèi)容為AET網(wǎng)站原創(chuàng),,未經(jīng)授權(quán)禁止轉(zhuǎn)載。