天空气球系留载平台组网无源定位仿真研究  

A Study of Passive Localization Based on Netted Balloon-borne Platform

作　　者：范翔宇[1] 王红卫[1] 陈游[1] 杨远志[1] 

机构地区：[1]空军工程大学航空航天工程学院,陕西西安710038

出　　处：《计算机仿真》2016年第6期36-40,共5页Computer Simulation

基　　金：陕西省自然科学基金(2012JQ8019)

摘　　要：系留载平台可以实现持续高远程预警,适用于空基组网实现无源定位。为提升天空气球系留载平台组网的无源定位能力,构建典型的三系留载系统结构。采用无源定位截获准则与误差准则,提出对信号的分选能力拓展截获后的处理能力,采用盲信号处理方式,从复杂电磁环境分选识别出威胁信号,对比现今的主流算法,构建兼顾分离精度与处理速度的协同并行处理模式;针对误差准则,利用"定位精度的几何稀释"对误差进行深入分析,构建典型的无源定位系统的数学模型与示意图,推导出最佳定位点与制约其能力的因素,仿真验证结果与理论相符,研究成果对后续无源定位的布站应用具有参考价值。Balloon -borne platform is capable of far- distance detecting and hovering in the air, which is appli- cable to the passive localization by the netted of the air - based. In order to improve the capacity of passive location of balloon - borne platform, a typical structure of three balloon - borne platforms system is established. Based on the intercept guideline and error criterion of passive location, the sorting capability as a part intercept guideline is put for- ward. Then the threatening signals are sorted from the complicated electromagnetic environment, which utilizes Blind Signal Processing （BSS）. Comparing mainstream algorithm, the parallel processing mode is presented to balance ac- curacy and speed. Aimed at error criterion, the Geometric Dilution of Precision （GDOP） is discussed based on the typical mathematic model and schematic diagram. According to the derived result, the optimum anchor point and the factor of restricting power are obtained, and the simulation result is identical with the theory analysis. The achieve- ment can be used to guide the base station setting in order to realize the passive localization.

关 键 词：系留载平台组网 截获准则 盲信号处理 定位精度的几何稀释 最佳定位点 

分 类 号：TN97[电子电信—信号与信息处理]