altimeters

At the present, range correlation and velocity filtering processing methods are adopted in most of modern airborne pulse Doppler radar altimeters.

传统弹载脉冲多普勒雷达高度表大都采取了距离、速度二维选通处理方法。

The parachute caps and altimeters must be wore, and parachute opener must be brought skydiving.

参加跳伞比赛人员必须戴伞帽 、 佩带高度表,造型跳伞必须带开伞器.

Fortunately, it is possible to incorporate an altimeter in the system and practically eliminate this difficulty entirely.

幸好，在系统中加入一高度计后这一困难实际上可以完全解除。

A Mixed Logic Model Method in the Radio Altimeter Test Diagnosis

无线电高度表测试诊断中一种混合逻辑模型方法

Radar altimeters are used in aircraft to indicate height above the ground of sea.

雷达高度表用以指示飞机相对于地面或海平面的高度.