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JULDAY.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 jd = julday(y,m,d,h)
- % JULDAY Conversion of date as given by
- % y ... year (four digits)
- % m ... month
- % d ... day
- % h ... hour and fraction hereof
- % The conversion is only valid in the time span
- % from March, 1, 1900 to February, 28, 2100
- % For further information see
- % Meeus, Jean (1991) Astronomical Algorithms,
- % Willmann-Bell, Richmond, Virginia, p. 59--62
- % Written by Kai Borre
- % February 14,2001
- if m <= 2, y = y-1; m = m+12; end
- jd = floor(365.25*(y+4716))+floor(30.6001*(m+1))+d+h/24-1537.5;
- % mjd = jd-2400000.5;
- %%%%%%% end julday.m %%%%%%%%%%%%