双正交小波变换在智能航姿测试系统设计中的应用  

Biorthogonal wavelet transform applications to automatic attitude/heading test system

作　　者：孙百香[1] 臧岩[1] 张立静[1] 

机构地区：[1]空军航空大学航空控制工程系,吉林长春130022

出　　处：《电子测试》2010年第5期64-68,共5页Electronic Test

摘　　要：为了快速、可靠测试某新型飞机航向姿态系统,在解决有关关键技术后,研制了总线式智能航姿测试系统。系统中创新设计了轴角转换板卡,实现了微弱磁航向信号的准确测量,系统航向、姿态检测精度从原模拟式检测设备的1°提高到现在的0.1°,与原模拟式测试系统相比,维护效率提高了10倍以上。系统采用双正交小波变换技术对TQZ-1D陀螺仪测漂信号进行去噪处理,经小波处理后,可以将TQZ-1D陀螺仪的姿态测量精度提高2倍。该测试系统已实际应用3年,系统运行稳定,检测测效率高,受到用户的广泛好评。To test the Attitude/heading system of a certain new aircraft as quick and reliable as possible,an automatic Attitude/heading test system based on bus type was designed after the key technologies were conquered.Innovative design is shaft-angle conversion card which can accurately measure weak magnetic heading.Meanwhile,the testing precision is improved from 1°to 0.1°.Maintenance efficiency of new indicator is increased by more than ten times. Biorthogonal wavelet transform technique is used in the de-noising of the TQZ-1D gyroscope drifting signal.After wavelet processing,the testing accuracy of TQZ-1D gyroscope is increased by 2 times.The Attitude/heading test system had applied 3 years,System runs stabilization,Inspection efficiency is higher,It be praised abroad by user.

关 键 词：航姿系统 测试系统 轴角转换板卡 双正交小波变换 

分 类 号：V249[航空宇航科学与技术—飞行器设计]