电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
6期
108-110
,共3页
杨灵芝%严家明%李超
楊靈芝%嚴傢明%李超
양령지%엄가명%리초
单片机%真空速%动压%静压%线性插值
單片機%真空速%動壓%靜壓%線性插值
단편궤%진공속%동압%정압%선성삽치
MCU%real-airspeed%dynamic pressure%static pressure%linear interpolation
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0-5000m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。
為瞭測量無人機真空速,設計瞭基于單片機的無人機真空速測量繫統。根據真空速和動壓靜壓的關繫式.採用分段線性插值的算法,測試瞭0-5000m高度的實際真空速值,得到的結果相對誤差均不大于4%。能夠滿足繫統精度要求。測試結果錶明:該繫統具有良好的穩定性,能實時準確地測量齣真空速值。
위료측량무인궤진공속,설계료기우단편궤적무인궤진공속측량계통。근거진공속화동압정압적관계식.채용분단선성삽치적산법,측시료0-5000m고도적실제진공속치,득도적결과상대오차균불대우4%。능구만족계통정도요구。측시결과표명:해계통구유량호적은정성,능실시준학지측량출진공속치。
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.