The goals of this work are to analyze and quantify the performance of advance GPS/INS algorithms (such as ultra-tightly coupled GPS/INS) used in jamming environments. The use of GPS as a method for guidance and navigation is prevalent in both military and civilian applications. The nature of the GPS satellite signal makes it very susceptible to RF interference. Additionally, the dynamics of the receiver platform can have a strong effect on signal tracking. By combining GPS with inertial sensors, a more robust position solution can be determined. In order to mitigate the effects of sensor errors, accurate models of the sensor error mechanisms must be developed for use in the algorithms which couple the GPS and inertial navigation systems together. This work looks to determine the limitations of advanced coupling algorithms as a function of missile dynamics, sensor errors, and jamming power.
Research Assistants
Christof Hamm
Warren Flenniken
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