基于多声纳基阵FDOA的联合定位技术及精度分析  

Joint Location and Accuracy Analysis Using FDOA Based on Multiple Sonar Arrays

作　　者：席林东[1] 占明锋[1] 邢昌风[1] 石章松[1] 

机构地区：[1]海军工程大学电子工程学院,武汉430033

出　　处：《舰船电子工程》2008年第9期91-94,195,共5页Ship Electronic Engineering

基　　金：湖北省自然科学基金项目(编号:2006ABA010)资助

摘　　要：主要对基于单平台多声纳基阵多普勒频率差的联合定位技术和精度进行了分析和推导,给出系统具体的定位公式和误差计算公式,并对系统的模型误差进行了分析。最后通过仿真,分析不同基阵布阵情况下的受控区域内GDOP的分布情况及基线和目标的深度等对GDOP的影响。仿真结果表明,定位误差与目标和基阵的位置、布阵形式等有关,定位误差随基线长度的增加而减小,当基线增大到一定长度时,定位误差最终趋向稳定,达到最小。The joint location and accuracy using FDOA based on multiple sonar arrays in a single platform are analysed and proposed in this paper.Then,the concrete location formulas and error calculating formulas in the location system are presented.And the model errors of the location system are analysed.Finally,the contours of GDOP under various conditions in the specific surveillance region and the influence with basic line and the depth and so on are drawn by computer simulation.The result shows that the location ...

关 键 词：多基阵 联合定位 基线 定位精度几何稀释 多普勒频率差 

分 类 号：TN953[电子电信—信号与信息处理]