小型无人机中温度对高度的影响

摘要

This paper introduced the principle of altitude measurement in UAV and the relationship of the altitude with air pressure and temperature.Also,it introduced the computing formula for air pressure separately in standard sea-level and with the temperature compensation.This paper analyzed atmospheric static pressure which during 2000 meters relative to ground in this UAV under three circumstances as fol ows:1.a standard sea-level and standard air temperature;2.the local altitude and the local minimum temperature;3.the local altitude and the local maximum temperature.In addition,it analyzed impact of temperature measurement error on altitude,and proved temperature sensor AD592CN in accordance with the design requirements.%本文介绍了小型无人机高度测量原理及高度分别与气压和温度的关系。分别介绍了以标准海平面标准空气温度为基准和带温度补偿的气压高度计算公式，并以标准海平面标准空气温度、本地海拔高度本地最低温度、本地海拔高度本地最高温度为基准计算此小型无人机飞行在相对起点2000米范围内对应的大气静压。同时，分析无人机起飞点温度测量误差对飞行高度的影响，确定温度传感器AD592CN符合本设计要求。