摘要
根据双频相位差测量的双曲线定位原理,提出一种基于蜂窝基站的全空间自定位方法。该方法不需要测量精确的时间差和标准同步的模拟脉冲。文中首先给出全空间定位的精度分布表达式,然后详细讨论了基于蜂窝基站实现全空间自定位的基站布局可能性以及实时自定位算法。仿真与原理实验表明,基于蜂窝基站自定位方法合理,基站坐标经处理后,无定位盲区、无模糊多解、无解等现象,自定位算法满足实时性和高精度的要求,其中单点定位仿真计算仅需0.13s,理论迭代误差数量级小于10-4。
According to hyperbola positioning by measuring phase difference of double-carrier frequency, this paper is given a method based on cellular station to realize whole space self-positioning and not required to measure precise time difference or synchronized analogue pulse. The accuracy expression is analyzed firstly, then possibility of using cellular station and the real-time positioning algorithm are discussed in detail. Some simulation and principle experiment show it is feasible,no blind zone exists and the real-time solution is satisfying , whose theoretical error is less than 10-4 and the average number for iteration is 7.2.
出处
《通信学报》
EI
CSCD
北大核心
2003年第5期153-160,共8页
Journal on Communications
