GLONASS接收机关键技术研究与实现
杨春波;耿建平;纪元法
【期刊名称】《计算机应用》 【年(卷),期】2013(033)0z1
【摘要】Considering the special signal structure and the unique message coding method of the GLONASS satellite navigation system,a control
strategy
and
its
implementation
method
for
the
acquisition,tracking and synchronization of the GLONASS signal in the receiver were proposed.Then the essay focused on the research of the calculation method of the GLONASS satellite position and proposed a method using fourth-order Runge-Kutta numerical integration extrapolation combined with Chebyshev polynomial fitting to calculate the satellite position.The method is verified that it can accurately calculate the instant position of the satellite and it saves more time compared with the calculation method only using numerical integration.In the end,the position result of receiver and its error analysis were presented.%针对GLONASS卫星导航系统特殊的信号体制和独特的电文编码方式,首先设计了GLONASS接收机中信号的捕获、跟踪及同步等步骤的控制策略和实现方法,接着重点研究了GLONASS卫星位置的计算方法,提出了利用4阶Runge-Kutta数值积分外推法结合切比雪夫多项式拟合法计算卫星位置.经验证该方法可以准确计算出卫星的瞬时位置,而且相比单独使用数值积分法节省了计算时间.最后给出接收机定位结果并作误差分析.
GLONASS接收机关键技术研究与实现
