CAJ | 학술논문

利用同源射频平台实现了一种全球导航卫星系统（ GNSS）姿态测量的接收机，接收机各射频电路相同且使用同一个晶振驱动，各射频通路之间有相同的信号处理特性。可以将射频通路分为主射频通路和从射频通路，主射频通路实现信号的捕获与跟踪，从射频通路利用差分相位鉴别器完成测量观测量提取。与传统使用独立接收机实现载波差分测向不同，主射频通道进入跟踪状态后立即输出观测量，无需检测载波半周跳变，实现快速姿态测量。利用GNSS姿态测量接收机、Novatel接收机以及惯性导航系统进行了跑车实验，实验结果表明：姿态测量接收机具有更好的载波测量输出能力，姿态测量精度和商业接收机相当。
이용동원사빈평태실현료일충전구도항위성계통（ GNSS）자태측량적접수궤，접수궤각사빈전로상동차사용동일개정진구동，각사빈통로지간유상동적신호처리특성。가이장사빈통로분위주사빈통로화종사빈통로，주사빈통로실현신호적포획여근종，종사빈통로이용차분상위감별기완성측량관측량제취。여전통사용독립접수궤실현재파차분측향불동，주사빈통도진입근종상태후립즉수출관측량，무수검측재파반주도변，실현쾌속자태측량。이용GNSS자태측량접수궤、Novatel접수궤이급관성도항계통진행료포차실험，실험결과표명：자태측량접수궤구유경호적재파측량수출능력，자태측량정도화상업접수궤상당。
A global navigation satellite system( GNSS )attitude determination receiver is implemented using homologous RF platform,each RF circuit of the receiver is the same and is driven by the same one crystal oscillator,so each RF access has same character of signal processing. RF access can be divided into Master RF signal path and Slaver RF signal path,and master RF signal path completes acquisition and tracking task and the Slaver RF signal path deals with measurements extraction. Different from traditional independent receiver,observed quantity is output at the same time that Master RF access entering tracking state,no detection of half-cycle slips is needed,fast attitude measurements is realized. Dynamic experiment is carried out where the GNSS attitude determination receiver,Novatel receiver and the INS are mounted on a car,and experimental results show that the receiver has a better carrier measurement and output capacity,and the precision of attitude measurement is the same as commercial receiver.