Date of Award
6-2005
Document Type
Dissertation
Degree Name
Doctor of Philosophy (PhD)
Department
Department of Electrical and Computer Engineering
First Advisor
John F. Raquet, PhD
Abstract
This research introduces the concept of navigation potential, NP, to quantify the intrinsic ability to navigate using a given signal. NP theory is a new, information theory-like concept that provides a theoretical performance limit on estimating navigation parameters from a received signal that is modeled through a stochastic mapping of the transmitted signal and measurement noise. NP theory is applied to SOP-based TDOA systems in general as well as for the Gaussian case. Furthermore, the NP is found for a received signal consisting of the transmitted signal, multiple delayed and attenuated replicas of the transmitted signal, and measurement noise. Multipath-based NP captures the dominant error source foreseen in SOP-based navigation systems and may be more indicative of actual system performance than non-multipath-based metrics. NP theory applies to signals other than SOP. As an example, NP is used to bound GPS correlation error performance for the multipath and no-multipath case.
AFIT Designator
AFIT-DS-ENG-05-02
DTIC Accession Number
ADA442340
Recommended Citation
Fisher, Kenneth A., "The Navigation Potential of Signals of Opportunity-based Time Difference of Arrival Measurements" (2005). Theses and Dissertations. 3633.
https://scholar.afit.edu/etd/3633