现代电子技术
現代電子技術
현대전자기술
MODERN ELECTRONICS TECHNIQUE
2014年
22期
60-62
,共3页
疲劳试验%姿态解算%四元数法%扩展卡尔曼滤波
疲勞試驗%姿態解算%四元數法%擴展卡爾曼濾波
피로시험%자태해산%사원수법%확전잡이만려파
fatigue test%attitude calculation%quaternion algorithm%extended Kalman filtering
为了改善现有全机疲劳试验中姿态监控的缺点，采用加速度传感器、陀螺仪、磁力计和DSP处理器，通过四元数法和二阶龙格-库塔法实时解算出飞机的姿态数据，然后经过扩展卡尔曼滤波器对多传感器数据进行融合滤波后得到准确的姿态数据，并通过无线传输模块发送至上位机，姿态数据超差后能够发出声光报警提醒试验控制人员。经试验，系统误差在0.58°以内。通过在某型号全机疲劳试验中的实际应用，该系统工作可靠、准确，满足试验要求。
為瞭改善現有全機疲勞試驗中姿態鑑控的缺點，採用加速度傳感器、陀螺儀、磁力計和DSP處理器，通過四元數法和二階龍格-庫塔法實時解算齣飛機的姿態數據，然後經過擴展卡爾曼濾波器對多傳感器數據進行融閤濾波後得到準確的姿態數據，併通過無線傳輸模塊髮送至上位機，姿態數據超差後能夠髮齣聲光報警提醒試驗控製人員。經試驗，繫統誤差在0.58°以內。通過在某型號全機疲勞試驗中的實際應用，該繫統工作可靠、準確，滿足試驗要求。
위료개선현유전궤피로시험중자태감공적결점，채용가속도전감기、타라의、자력계화DSP처리기，통과사원수법화이계룡격-고탑법실시해산출비궤적자태수거，연후경과확전잡이만려파기대다전감기수거진행융합려파후득도준학적자태수거，병통과무선전수모괴발송지상위궤，자태수거초차후능구발출성광보경제성시험공제인원。경시험，계통오차재0.58°이내。통과재모형호전궤피로시험중적실제응용，해계통공작가고、준학，만족시험요구。
In order to improve the performance of the existing attitude monitoring system,the attitude data of plane was ob-tained with acceleration sensor,gyroscope,magnetometer and DSP processor through real-time calculation of quaternion algo-rithm and Runge-Kutta algorithm. The accurate attitude data was got by means of fusion and filtering of the extended Kalman fil-ter with the data from multiple sensors. The data is send to upper computer through wireless transmission module. The system will reminding the test controller through sound and light alarm when the attitude error is greater than the threshold. In the test, the system error is within 0.58°. With the application in the fatigue test,the system is proved to be reliable and accurate,and meets the fatigue test requirements.
