摘要
为深入研究基于TDOA体制下高速运动目标深海落点测量基站布设方式、目标落点位置、参考基站选取等变化对落点测量精度的影响规律,基于泰勒级数展开法建立了TDOA体制下无源定位测量模型,以站址误差、时延误差、声速误差等作为主要误差源变量,采用了蒙特卡洛数值模拟方法通过大子样抽样将呈正态分布的随机数代入定位测量模型,复现多基站条件下时延差定位测量精度特性。分析结果表明,在综合误差源影响下,测量模型能够对基站布设、落点位置、参考基站选取等变化产生合理响应,采用蒙特卡洛数值模拟方法能够有效估计深海高速运动目标落点位置测量精度,可为多基站无源定位测量布站设计与精度评定问题提供参考。
In order to further research influence rules of the deep-sea falling point measurements accuracy of high-speed moving target which changes with base station layout,falling point position,reference base station,etc.,the paper establishes a passive location model based on the Taylor-series expansion method under TDOA system,then takes the site error,delay error and acoustic velocity error as the main error sources variable,plugs the normally distributed random numbers into the measurement model by architectural kind of sampling with the Monte Carlo numerical simulation method,and finally reproduces the accuracy characteristics of time delay differential positioning under the condition of the multi-base stations.The analysis results show that the measurement model can reasonably respond to the changes of base station layout,falling point positon,reference base station selection under the influence of composition error sources,the precision of the deep-sea falling point measurement of the high-speed moving target can be estimated with Monte Carlo numerical simulation method effectively,which can provide references for the design of the multi-base stations in passive location and accuracy evaluation.
作者
张志伟
孙翱
张旭
辛健
ZHANG Zhi-wei;SUN Ao;ZHANG Xu;XIN Jian(43 Teams in 91550 Troops of PLA,Dalian 116023;Postdoctoral Scientific Research Station in 92493 Troops of PLA,Dalian 116023,China)
出处
《指挥控制与仿真》
2019年第6期91-97,共7页
Command Control & Simulation
基金
国家自然科学基金(61701504)
关键词
TDOA体制
蒙特卡洛方法
基站布设
落点位置
参考基站
精度分析
TDOA system
Monte Carlo method
base station layout
falling point position
reference base station
precision analysis
