组合GPS和GLONASS在民航中应用的研究  

APPLICATION OF COMBINED GPS AND GLONASS IN CIVIL AVIATION

作　　者：刘晖[1] 李小民[1] 王银锋[1] 张其善[1] 

机构地区：[1]北京航空航天大学202教研室

出　　处：《航空学报》1998年第S1期40-45,共6页Acta Aeronautica et Astronautica Sinica

摘　　要：研究了ＧＰＳ和ＧＬＯＮＡＳＳ在民用航空中的应用前景。分析了组合ＧＰＳ和ＧＬＯＮＡＳＳ所具备的可用性、精确性和完整性潜力。组合ＧＰＳ／ＧＬＯＮＡＳＳ在我国民航中具有重要的技术与战略意义。提出了一种集成１２通道ＧＰＳ／ＧＬＯＮＡＳＳ接收机的结构与实现。射频前端部分采用３级变频将ＧＰＳ和ＧＬＯＮＡＳＳ信号变至中频并采样为同相与正交样本。数字处理部分对各样本加以积累与处理，解调卫星的导航电文。在导航解算中结合了ＷＧＳ－８４和ＰＺ－９０坐标系之间的转换。The application prospect of combined GPS/GLONASS in civil aviation is researched. The potential of combined GPS/GLONASS in the availability, accuracy and integrity of civil aviation is analysed. The structure of a twelve channel integrated GPS/GLONASS receiver is proposed. Triple down conversion is adopted in the receiver's RF front end to convert GPS and GLONASS RF to IF. The IF signal is sampled to In phase and Quadrature samples. They are accumulated and processed in digital part and the navigation message is demodulated. The transformation of WGS 84 and PZ 90 is incorporated into the solution of GPS/GLONASS navigation.

关 键 词：接收机 民航 导航 GPS GLONASS 

分 类 号：TN965.5[电子电信—信号与信息处理] V249.324[电子电信—信息与通信工程]