针对单站无源定位系统及时定位的需求,提出了一种基于长短基线干涉仪的无源定位系统的设计方案。该系统首先通过短基线测角,去除长基线接收机相位模糊,进而获得更高精度的波达角度;然后通过无模糊的相位差测量值和波达角度估计值确定信号源与观测站之间的距离。通过性能指标分析和定位仿真试验,系统的有效性和可行性得到了验证。

A new in time passive location system based on multi base-line interferometers is proposed. The new system uses short base-line to avoid the long base-line phase illegibility to get the signal arrive angle with higher precision, then use the phase differences without illegibility and the arriving angle to detected the emitters range. By performances analysis, the feasibility and validity of the new systems have been proved.

TN958