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基于Matlab读取标准RINEX格式的GPS星历数据

于 2020-11-02 发布
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基于Matlab读取标准RINEX格式的GPS星历数据,采用Matlab直接读取Rinex文件张妮,等基于 Matlab读取标准 RINEX格式的GPS星历数据navdata(i). day str2num(line(10: 12));Le Edit yie seb finds Helpnavdata(i). hour=str2num (line(13: 15));navdata(i). minute str2num(line(16: 18))navdata (i).second str2num (line(19: 22));navdata(i). af0= str2num(line(23: 41))2:s10122-0041.4e012]【5.917e012]t30e95a-012navdata(i). afl str2num (line(42: 60));4.480-00navdata(i). af2 str2num (line(61: 79));4.600T+00619.8348←[6.419e007line fgetl(fid); %o second linem…2107007]navdata(i). aode str2num(line(4: 22))205-00【--007[7.2643c0090.9161【0.922】navdata().crs str2num(line(23: 41))navdata (i).dn= str2num(line(42: 60))图3读取星历数据结果navdata(i) Anomaly str2num (line(61: 79))Fig 3 Reading result of ephemeris dat4)关闭文件 status= fclose(fid)。骤,利用 Matlab矩阵的计算优势,很方便地计算不同时刻卫22星历数据的读取星的坐标,此外,还可方便查看卫星导航表层信息,判断导航星历数据的读取采用结构体数组显示的相关命令读取,数据的质量。若要获取某个卫星的相关参数可输入如示例命令:>>navdata(1)。获取结果如图2所示,为1号卫星参数读取结果3结论利用 Matlab以矩阵为单位进行计算的优势对 RINEX文件进行读取,较其他语言简单易行,结果精确,程序可移植性好,便于后续数据处理,同时还可利用 Matlab的仿真功能,实现卫星动态变化的实时模拟afl:1.47T9e-012参考文献:[1]陈东银,刘立龙,陈雷.GPS导航定位技术中面向对象读取 RINEX格式数据!测绘与空间地理信,2009(6):41-43.chen DorInCHen Lei. An ohmethod of reading rineX formatdat in GPS navigation tech-图21号卫星参数读取结果nology [J]. Geomatics and Spatial Information TechnologyFig. 2 Reading result of parameter of satliete NO.2009(6):41-43也可利用 Matlab元包数组,将数据存放并显示出来,具|2 I Gurtner W. RINEX: The receiver independent exchange for体实现代码如下mat: Version 2.10[M] Canada: Astronomical Institute UniverFN=fieldnamesnavdata)sity of Berne, 2002size=size(FN)3]孟广祥,郭标明.CPS接收机(OEM)二进制文件向 RINEXnavdata year;文件的转换[,测绘工程,2009(10:18-21.nav data=cell(oh+1);MENG Guang-xiang. Guo Biao-ming. The transformationsIzefrom GPS receiver (OEM) binary data to RINEX file[J]. Enfor i= 2: noph +1gineering of Surveyying and Mapping, 2009(10): 18-21onavcell=char(navdata year)[4]陈桂珍,戴建军.GPS-OEM原始数据向 RINEX格式转换nav_data(n, 1= char(FN(n));的方法[测绘技术装备,2006(4):26-27nav_data n, i= navdata(i-1).(char(FN(n)))CHENG Gui-zhen, DAI Jian-jun. The transformation fromGPS-OEM orignal data to RINEX Format[J]. Surveying techendnical equipment, 2006(4): 26-27读取结果如图3所示。5]张志涌.精通 Matlab6.5[M]北京:北京航空航天大学出版采用 Matlab软件读 RINEX导航文件,可以将文件所有社,2004的数据用矩阵保存,数据的显示精度不仅不会影响计算精6 Chapman Stephen J. Matlab Programming for engineers [M度,而且可以随时修改,并可根据卫星坐标的计算公式和步北京:科学出版社,200325基于Ma1ab读取标准RINX格式的GPS星历数据旧万据WANFANG DATA文献链接作者张妮,王标标, ZHANG NI, WANG Biao-biao作者单位张妮, ZHANG Ni(西安工业大学北方信息工程学院,陕西,西安,710025),王标标, WANG Biaobiao(中国人民解放军96275部队,河南洛阳,471003)刊名:电子设计工程sTc英文刊名ELECTRONIC DESIGN ENGINEERING年,卷(期):2010,18(8参考文献(6条)1. Chapman Stephen J Matlab Programming for engineers 20032.张志涌精通 Matlab6.520043.陈桂珍;戴建军 GPS-OEM原始数据向 RINEX格式转换的方法[期刊论文]测绘技术装备2006(044.孟广祥;郭标明GPS接收机(OEM二进制文件向 RINEX文件的转换2009(10)5. Gurtner W RINEX: The receiver independent exchange format: Version 2.10 2002陈东银;刘立龙;陈雷GPS导航定位技术中面向对象读取 RINEX格式数据2009(06)本文链接http://d.g.wanfangdata.comcn/periodiCaldzsjgc201008007.aspx

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