• Constructing a Continuous Phase Time History from TDMA Signals for Opportunistic Navigation 

      Pesyna, Kenneth; Kassas, Zaher; Humphreys, Todd (Constructing a Continuous Phase Time History from TDMA Signals for Opportunistic NavigationIEEE/ION PLANS Conference, 2012-04)
      A technique is developed for reconstructing a continuous phase time history from the noncontinuous phase bursts of time division multiple access (TDMA) signals. A continuous phase time history facilitates exploitation of ...
    • Observability Analysis of Opportunistic Navigation with Pseudorange Measurements 

      Kassas, Zaher; Humphreys, Todd (In Proceedings of AIAA Guidance, Navigation, and Control Conference (GNC’12), 2012-08)
      The observability analysis of an opportunistic navigation (OpNav) environment whose states may be partially known is considered. An OpNav environment can be thought of as a radio frequency signal landscape within which a ...