一种超短基线定位系统阵型的改进方法  

An Improved Measurement Method for Array Design of USBL

作　　者：郑翠娥[1] 李琪[1] 孙大军[1] 张殿伦[1] 

机构地区：[1]哈尔滨工程大学水声工程学院,黑龙江哈尔滨150001

出　　处：《中国海洋大学学报（自然科学版）》2009年第3期505-508,共4页Periodical of Ocean University of China

基　　金：国家高技术研究发展计划(2006AA09Z218)资助

摘　　要：超短基线随着作用距离增加,其定位误差也增大。为了满足远距离作业需要,提高超短基线远距离的定位精度,文中提出通过改进超短基线基阵阵型的方法来提高定位精度,但同时会带来相位模糊的问题,因此进一步提出一种利用双脉冲信号相位抗模糊的方法以保证在改进的阵型条件下能够正确地定位。仿真和实验结果证明通过阵型改进后的超短基线系统定位精度得到了很大的提高。The position error of ultra-short baseline system （USBL） becomes more awful with the increment of range. In order to increase the accuracy in long-range operation and satisfy the need of long-range application, an improved measurement method ＇based on array design is presented to increase the array＇s aperture, which introduces the phase ambiguity inevitably. Moreover, an anti-ambiguity method called dual-pulse signal is proposed to ensure the correct positioning in the improved array. The simulation and experiment results show the positioning precision of the improved USBL is increased by using this method.

关 键 词：基阵设计 相位模糊 双脉冲 

分 类 号：TP39[自动化与计算机技术—计算机应用技术]