低空无线电高度表，一种测量飞机至地形的垂直距离的系统。
LOW RANGE RADIO ALTIMETER, a system that measures the vertical distance from the airplane to the terrain.
无线电高度表测量的是飞机离地面而不是离海平面的距离，用于自动导航及仪表着陆系统上。
Radio altimeters measure the distance of an aircraft above the ground rather than above sea level, they are used in automatic navigation and Blind-landing systems.
提出了弹上无线电高度表因外因导致高度指示异常时，使导弹具有一定的自适应能力，避免导弹飞行试验失败的改进方案。
The improving measures are proposed to make the missile possess a certain adaptive ability avoiding the failure of missile flight test when the missile borne radio altimeter is out of order.
从无线电高度表工作原理的分析与研究出发，提出了基于虚拟仪器技术和I/Q调制器的无线电高度表动态测试系统的总体设计，同时对测试数据的处理理论进行了一定的分析和研究。
This paper analyzes the working mechanism of aerodynamic missile-borne radio altimetre and puts forward a new design for the radio altimetre based on virtual instrument and I/Q modulator.
从无线电高度表工作原理的分析与研究出发，提出了基于虚拟仪器技术和I/Q调制器的无线电高度表动态测试系统的总体设计，同时对测试数据的处理理论进行了一定的分析和研究。
This paper analyzes the working mechanism of aerodynamic missile-borne radio altimetre and puts forward a new design for the radio altimetre based on virtual instrument and I/Q modulator.
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