针对三站对雷达辐射源测时差定位系统,提出了用"站间构型测度"分析构型对定位精度影响的方法,推导了几何精度稀释因子(GDOP)与三站构成的三角形面积的显式表达式并通过仿真分析了构型对定位精度的影响;文中提出了站间编队构型优化设计准则,为提高三站定位系统的定位精度提供了理论依据.

Space-based tri-station location system for radar emitter using time difference of arrival(TDOA)is under investigation,and a new method using constellation Shape of tri-station for location accuracy analysis is proposed.Analytical expressions are derived for geometric dilution of precision(GDOP)as a function of the constellation area.The infection of constellation on location accuracy is analyzed in detail.Criterion for optimal constellation design is also presented and provides theoretical basis for improv...

TN953