摘要
研究卫星导航通信的优化问题。当前的卫星导航通信系统的观测方程为非线性方程,载体的目标运动方程也是非线性的。传统的卫星导航系统中采用卡尔曼滤波对非线性信息进行逼近线性化处理,这种方法会引入线性化误差,降低了导航的准确性。为了避免上述缺陷,提出多星座组合定位算法的卫星导航中的优化通信方法。利用蚁群方法,搭建卫星导航通信平台,利用多星座组合定位方法,在设定的初始位置,对非线性方程进行展开,将多卫星进行组合定位,得到定位方程矩阵和对应的解,完成定位。实验结果表明,利用改进算法进行卫星导航中的优化通信,能够提高导航的可见性,并且提高卫星导航的准确性,从而满足实际生产、生活中的导航需求。
The paper is about the optimization of satellite navigation communication. We propose an optimized communication method of multi constellation combined with positioning algorithm in satellite navigation. We used ant colony method to set up the platform of satellite navigation communication. And we adopted the method of multi constellation combined positioning in the setting initial position to expand the nonlinear equation and let the multi satellite be combined and positioned. Finally, we obtained the positioning equation and the corresponding solu tions, and completed orientation. Experimental results show that the improved algorithm of optimization communica tion in satellite navigation can improve the visibility and accuracy of satellite navigation, which can meet need of the actual production and life.
出处
《计算机仿真》
CSCD
北大核心
2014年第4期114-117,共4页
Computer Simulation
关键词
卫星导航
优化通信
观测方程
通信平台
Satellite navigation
Optimize communication
The observation equation
Communication platform
