CAJ | 학술논문

针对三机无源定位二维布阵优化问题,提出了基于有效定位区面积最大准则的最优布阵方法.文中以三机时差定位、频差定位及时频差定位为例,描述了三机无源定位模型,接着基于克拉美-罗限引入了有效定位区的概念,并以其面积最大作为布阵优化准则,通过仿真研究了二维布阵优化问题.仿真结论反映了三机时差、频差及时频差定位体制的不同特性,具有较强的实际指导意义.
침대삼궤무원정위이유포진우화문제,제출료기우유효정위구면적최대준칙적최우포진방법.문중이삼궤시차정위、빈차정위급시빈차정위위례,묘술료삼궤무원정위모형,접착기우극랍미-라한인입료유효정위구적개념,병이기면적최대작위포진우화준칙,통과방진연구료이유포진우화문제.방진결론반영료삼궤시차、빈차급시빈차정위체제적불동특성,구유교강적실제지도의의.
For optimal two-dimensional(2-D) sensors placement for 3-aircraft passive location system, a method based on maxi-mum area principle is proposed. In this paper, 3-aircraft time difference of arrival (TDOA) location, frequency difference of arri-val (FDOA) location and hybrid TDOA/FDOA location are taken as examples. First, the basic description of passive location models is given. Then, the concept of effective location region is introduced based on Cramer-Rao Lower Bound (CRLB). Be-sides, the principle of maximum effective location area is given. Finally, the optimal 2-D sensors placement is investigated by com-puter simulation and the simulation results indicate some instructive conclusions, which reflect the characteristics of TDOA location system, FDOA localization system and hybrid TDOA/FDOA location system.