BIAN De-fei, XIONG Zhi, LIU Jian-ye. Research on multi-sensor integrated navigation system based on double CPU[J]. 2007, (8): 51-54. DOI: 10.13873/j.1000-97872007.08.034.
Taking the embedded hardware platform composed of the double CPU(MCU+DSP) navigation computer as a foundation
the research of SINS/GPS integrated navigation system aided by magnetic course is carried out.Eight positions calibrating algorithm is used for magnetic course to eliminate environment disturb and improve the output precision.Low-order Kalman filter used for information fusion can satisfy navigation system accuracy and real-time request.In view of the double CPU navigation-computer special structure
in order to realize the multi-sensors data acquisition synchronism and timeliness
The entire navigation procedure sequential control flow is designed.The sequential control between data collected cycle and navigation resolving cycle
and the real-time data communication flow between the two central processing units(CPU) are introduced.Finally the entity experiment shows that the program is feasible absolutely.
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