运用大型有限元计算软件nastran求某卫星结构频响函数以及随机振动的代码，输入为结构模型坐标-The use of large-scale finite element calculation software the nastran seeking structure FRF code, input structure model coordinate

卫星坐标地图纠编,gps,gis,地图纠偏-maperror to handle

通过解析接收卫星星历的rinex文件中的.n文件来计算卫星坐标- By parsing receives satellite ephemeris rinex file. N file to calculate the satellite coordinates