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GRABDATA.M
资源名称:easy.zip [点击查看]
上传用户:sfyaiting
上传日期:2009-10-25
资源大小:320k
文件大小:1k
源码类别:
GPS编程
开发平台:
Matlab
- function Obs = grabdata(fid, NoSv, NoObs)
- %GRABDATA Positioned in a RINEX file at a selected epoch
- % reads observations of NoSv satellites
- %Kai Borre 09-13-96
- %Copyright (c) by Kai Borre
- %$Revision: 1.0 $ $Date: 1997/09/23 $
- global lin
- Obs = zeros(NoSv, NoObs);
- if NoObs <= 5 % This will typical be Turbo SII data
- for u = 1:NoSv
- lin = fgetl(fid);
- for k = 1:NoObs
- Obs(u,k) = str2num(lin(2+16*(k-1):16*k-2));
- end
- end
- else % This will typical be Z12 data
- Obs = Obs(:,[1 2 3 4 5]); % We cancel the last two columns 6 and 7
- NoObs = 5;
- for u = 1:NoSv
- lin = fgetl(fid);
- lin_doppler = fgetl(fid);
- for k = 1:NoObs %%-1
- if isempty(str2num(lin(1+16*(k-1):16*k-2))) == 1, Obs(u,k) = nan;
- else %
- Obs(u,k) = str2num(lin(1+16*(k-1):16*k-2));
- end
- % Obs(u,NoObs) = str2num(lin(65:78));
- end
- end
- end
- %%%%%%%%% end grabdata.m %%%%%%%%%