| 基于单片机的无人机真空速测量系统设计 |
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| 引用本文： | 杨灵芝,严家明,李超.基于单片机的无人机真空速测量系统设计[J].电子设计工程,2012,20(6):108-110. |
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| 作者姓名： | 杨灵芝 严家明 李超 |
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| 作者单位： | 西北工业大学电子信息学院,陕西西安,710129 |
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| 摘 要： | 为了测量无人机真空速,设计了基于单片机的无人机真空速测量系统。根据真空速和动压静压的关系式,采用分段线性插值的算法,测试了0-5 000 m高度的实际真空速值,得到的结果相对误差均不大于4%,能够满足系统精度要求。测试结果表明:该系统具有良好的稳定性,能实时准确地测量出真空速值。
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| 关 键 词： | 单片机 真空速 动压 静压 线性插值 |
Design of real-airspeed measuring system in unmanned aerial vehicle based on MCU |
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| YANG Ling-zhi,YAN Jia-ming,LI Chao.Design of real-airspeed measuring system in unmanned aerial vehicle based on MCU[J].Electronic Design Engineering,2012,20(6):108-110. |
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| Authors: | YANG Ling-zhi YAN Jia-ming LI Chao |
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| Affiliation: | (College of Electronics and Information,Northwestern Polytechnical University,Xi’an 710129,China) |
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| Abstract: | In order to measure the real-airspeed of unmanned aerial vehicle(UAV),the real-airspeed measuring system in unmanned aerial vehicle(UAV) based on MCU are designed.According to the calculating function of real-airspeed,actual real-airspeed between 0 m and 5 000 m is tested with piecewise linear interpolation algorithm.The relative error of results is within 4% and can satisfy the precision requirement of system.The test results show that the system has good stability and can real-time measure real-airspeed with high precision. |
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| Keywords: | MCU real-airspeed dynamic pressure static pressure linear interpolation |
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