Orientation determination technology based on satellite navigation system 并列题名：Orientation determination technology based on satellite navigation system Non-coaxial rotation compound modulation technology for strapdown inertial navigation system Ionospheric measurement and application technology based on satellite beacon signals Logistics information technology & information system 并列题名：Orbit determination technology of earth observation satellites and its application Spacecraft autonomous navigation technology based on multi-source information fusion Research on I/O optimization technology based on solid state disk Design theory and key technology of multiband satellite navigation signal 并列题名：Ionospheric measurement and application technology based on satellite beacon signals