空中节点的测时差定位算法
郭晓雪1,张亚1,郭晓雨2,王维1,田洪明3
1.中北大学 机电工程学院,山西 太原 0300512.内蒙古农业大学,内蒙古 010010
3.中国人民解放军 66440部队,河北 石家庄 050081

 

摘要:用时差法对空中节点进行定位,地面至少需要三个或更多个地面基站工作,而地面基站的布站形式对定位的精度又有很大影响。为确保定位精度与布站形式有关,要求在相同的测试条件下进行测试。时差定位处理地面基站发送到节点的信号的到达时间差测量数据对空中节点进行定位的。要确定三维空间的任一节点至少需要四个站形成三个单边双曲面来确定节点的位置。随后用数学方法求解出模型的定位精度。最后对几种不同的布站进行了仿真,得到了哪种布站精度高。
关键词:时差定位;定位精度;时间同步
中图分类号:TN961            文献标识码:A          文章编号:10060316 (2012) 06000704
The TDOA location algorithm of air node
GUO Xiao-xue1ZHANG Ya1GUO Xiao-yu2WANG Wei1TIAN Hong-ming3
( 1. College of Mechatronic Engineering, The North University of China, Taiyuan 030051, China;
 2. The West Inner Mongolia Agriculture University, Mongolia 010010
, China;
3. 66440 Troops, The Chinese People's Liberation Army, Shijiazhuang 050081, China )

 

AbstractWith the method of time difference to the air node location, the ground need three or more ground base station work , and the form of the base station to the positioning of the cloth precision and has very big effect. In order to ensure the positioning precision and cloth stood on the form, the requirements in the same test conditions test. TDOA location processing ground base station transmission to the node of the signal to the detection data of the time to air node location. To determine the three dimensional space of any node will need at least four stood form three unilateral hypoid to determine the position of the node. Then use mathematical method to solve the accuracy of model. Finally determine which has high precision through simulation the several different positions.
Key wordsTDOA locationlocation accuracytime synchronization


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收稿日期:2011-11-24
作者简介:郭晓雪(1987-),女,内蒙古兴安盟人,硕士研究生,主要研究方向为目标传感探测与识别技术。

 

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