基于SuperstarⅡ的卫星位置计算及分析

Satellite Position Calculation and Analysis Based on SuperstarⅡ GPS Receiver

GPS卫星位置计算是进行GPS导航定位的关键环节,快速准确地计算出卫星坐标,对提高GPS定位精度和速度有着重要意义.本文基于SuperstarⅡGPS接收机,利用MATLAB对Marconi二进制格式数据进行了解码,计算卫星位置并对卫星位置进行了外推,与IGS精密星历比较可得位置误差在2 m以内,充分验证了方法的正确性.

GPS satellite position calculation is the key link of GPS navigation and positioning, calculating satellite coordinates quickly and accurately is important to improve positioning speed and precision. The paper has decoded the data of Marconi binary with MATLAB based on Superstar Ⅱ GPS receiver, moreover, completed calculating and extrapolating satellite position. The position error is within 2m compared with IGS precision ephemeris, the results have proved the validity of these methods.