摘要
针对飞行器测姿需求,设计构建了一套具有测姿功能的软硬件系统。该系统采用宽带射频收发单元+FPGA+DSP的统一软件无线电架构,具有较高的灵活性和可扩展性,结合PMF+FFT快速捕获模块和长短基线快速整周模糊度解算模块,可以实现快速、高精度的姿态测量。根据实测结果推算,在1.5 m基线长度时的航向角测量精度为0.2242°/L,能较好地满足现阶段的飞行器姿态测量要求。
A set of software and hardware system with attitude measurement function is designed and constructed to meet the attitude measurement requirements of aircraft.The system adopts a unified software radio architecture,composing of broadband RF transceiver unit,FPGA unit and DSP unit,which has high flexibility and extensibility.Combining the fast capture module based on PMF+FFT and the carrier phase ambiguity resolution module based on long-short baseline,fast and high precision attitude measurement can be achieved.Calculated according to the measured results,the attitude accuracy is about 0.2242°/L at a baseline length of 1.5 m,which can better meet the requirements of aircraft attitude measurement at present stage.
作者
倪淑燕
程乃平
崔建华
张晟歌
NI Shu-yan;CHENG Nai-ping;CUI Jian-hua;ZHANG Sheng-ge(Department of Electronic and Optical Engineering,Space Engineering University,Beijing 101416,China;Campany of Postgraduate Management,Space Engineering University,Beijing 101416,China)
出处
《测控技术》
2020年第1期71-75,共5页
Measurement & Control Technology
