摘要
主要研究了非线性系统中地面上多主动传感器的位置对远距离空中目标跟踪精度的影响。由理论证明和仿真结果得，对空中目标跟踪精度主要受目标到各传感器的水平距离及传感器和目标所成水平夹角的影响。目标离各传感器的水平距离越近，跟踪精度越高；水平夹角越大，跟踪精度越高。但水平夹角大到一定程度，再增大对跟踪精度的影响不大。所以通过地面上多传感器的合理布站，基于数据融合技术可大大提高对远距离空中目标的跟踪精度。
Mainly studies the influence of ground multi sensor′s positions on the long range airplane tracking accuracy in nonlinear systems. In theory it is inferred that when ground multi sensors track a long range airplane, the tracking accuracy is mainly influenced by the level distance between the airplane and every sensor, and by the bearing included angle between sensors and the airplane. Simulations prove the above conclusion and give the result that the shorter level distance between the airplane and every sensor leads to a higher tracking accuracy; the bigger bearing included angle between sensors and airplane leads to a higher tracking accuracy, but when the bearing included angle is bigger than a value, the tracking accuracy can not be improved obviously. So it can be said that rationally depositing extant sensors on the ground and using multisensors′ data fusion technique can raise a long range airplane tracking accuracy under saving sensor resources.
出处
《南京航空航天大学学报》
EI
CAS
CSCD
北大核心
1998年第5期588-592,共5页
Journal of Nanjing University of Aeronautics & Astronautics
