摘要
介绍了小型飞行器传感器测距、无线电字同步测距两种方法。并以某小型飞行器为例,分别给出了两种测距方法的设计原理及精度分析。对两种测距方法的飞行数据进行验证表明:无线电字同步测距方法弥补了传感器测距法低空测量精度低之不足,是一种实用的低成本、高精度的距离测量方法。
?The methods of distance measuremen by sensor and distance measurement by word synchronization are introduced.The principle of distance measurement and accuracy analyse are given by means of an example of the small aircraft.The flight date proved that the method of distance measurement by word synchronization offsetted the shortage of distance measurement by sensor in low altitude,and it is an useful method of low cost and high accuracy.
出处
《传感器技术》
CSCD
北大核心
2003年第3期39-41,44,共4页
Journal of Transducer Technology
基金
国家自然科学基金资助(60134010)
关键词
传感器测距
字同步测距
数字锁相环
误差分析
distance measuremen by sensor
distance measurement by word synchronization
digital phase-locked loop(DPLL)
error analysis
