公开(公告)号：US4649390A

公开(公告)日：1987-03-10

申请号：US520408

申请日：1983-08-05

申请人： LaVern A. Andrews ,  Dennis Moraitis

发明人： LaVern A. Andrews ,  Dennis Moraitis

IPC分类号： G01S7/02 ,  G01S7/28 ,  G01S13/42 ,  G01S13/46 ,  G01S13/50 ,  G01S13/66 ,  G01S13/87 ,  G01S13/72

CPC分类号： G01S13/426 ,  G01S13/66 ,  G01S13/87

摘要： A single two dimension radar system having the capability of developing two dimensional data on all targets in its surveillance volume and three dimensional data for selected targets in its surveillance volume is disclosed. A single phased array antenna having two selectable elevation beam patterns, a wide beam and a narrow beam, is rotated in azimuth. In the two dimension mode, targets are detected and tracked in an azimuth and range position through use of the wide elevation beam. Upon selecting a particular target in track for three dimension data extraction, the radar system changes to the three dimension mode prior to the azimuth position of the selected target, and performs a sequential lobing process of the narrow beam in elevation angle. The power ratios of the target returns in the sequential lobes are analyzed and an elevation position of the selected target is determined. The radar system reverts to the two dimension mode after leaving the azimuth position of the selected target.

摘要翻译： 公开了一种具有在其监控体积中对所有目标进行二维数据开发的能力的单一二维雷达系统及其监视量中选定目标的三维数据。 具有两个可选择的仰角波束图案（宽光束和窄光束）的单相相控阵天线在方位角旋转。 在二维模式中，通过使用宽仰角波束，在方位角和范围位置检测和跟踪目标。 在选择三维数据提取的轨道中的特定目标时，雷达系统在所选目标的方位位置之前改变为三维模式，并且以仰角执行窄波束的顺序波动处理。 分析顺序波瓣中的目标返回的功率比，并且确定所选择的目标的仰角位置。 离开所选目标的方位位置后，雷达系统恢复到二维模式。