摘要
介绍了一种基于单片机的无人机指示空速测量系统的设计与实现;论述了系统的硬件组成和算法设计。针对指示空速与动压的函数关系式,提出了线性插值算法的设计方案,系统相对误差控制在2%以内。测试结果表明:该系统具有良好的稳定性,能实时、高精度地解算并输出指示空速值。
The design and realization of the indication speed measuring system in pilotless aircraft based on micro-controller unit（MCU） are introduced. The hardware and the algorithm of measuring system are elaborated. Aimed at the expression of function of indicated air speed and dynamic pressure, linear interpolation algorithm is presented. The relative error of the measuring system is within 2 %. The test result shows that the measuring system has good stability and it can real-time calculate and output indicated air speed with high precision.
出处
《传感器与微系统》
CSCD
北大核心
2010年第7期90-92,95,共4页
Transducer and Microsystem Technologies
关键词
单片机
指示空速
动压
线性插值
micro-controL-unit（MCU）
indicated air speed
dynamic pressure
linear interpolation
