公开(公告)号：US3827049A

公开(公告)日：1974-07-30

申请号：US31721772

申请日：1972-12-21

申请人： HOLLANDSE SIGNAALAPPARATEN BV

发明人： VAN STAADEN C ,  BODMER M ,  VAN HIJFTE H ,  GELLEKINK B

IPC分类号： G01S7/02 ,  G01S13/66 ,  G01S13/72 ,  G01S13/87 ,  G01S9/16 ,  G01S9/22

CPC分类号： G01S13/66 ,  G01S13/87

摘要： A radar system is provided with a first radar apparatus for the range and angle tracking of targets located at a relatively long range and with a second radar apparatus for at least the angle tracking of targets at a relatively short range. The radar apparatus both operate at an own wavelength, but they employ one and the same tracking antenna. The wavelength of the second radar apparatus is so selected that, in case a target being tracked at a relatively low altitude is within the range of said second radar apparatus, the interference caused by the receipt of target echoes reflected by the earth surface does not influence the antenna tracking movement. When a target being tracked is outside the range of the second radar apparatus, it is tracked by the first radar apparatus in range and in angle coordinates. When said target arrives within the range of the second radar apparatus, it can be tracked in angle coordinates by the latter radar apparatus and in range by the former radar apparatus.

摘要翻译： 雷达系统设有第一雷达装置，用于对位于较长距离的目标进行距离和角度跟踪，以及第二雷达装置，用于至少在较短范围内对目标进行角度跟踪。 雷达装置都以自己的波长工作，但它们采用同一个跟踪天线。 第二雷达装置的波长如此选择，使得在相对较低的高度跟踪的目标在所述第二雷达装置的范围内的情况下，由接收地球表面反射的目标回波引起的干扰不会影响 天线跟踪运动。 当被跟踪的目标在第二雷达装置的范围之外时，由第一雷达装置在范围和角度坐标上跟踪。 当所述目标在第二雷达装置的范围内到达时，可以由后一个雷达装置以前一个雷达装置在范围内跟踪角度坐标。