Non-GNSS Radio Frequency Navigation
AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
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There are many situations in which Global Navigation Satellite Systems GNSS such as the Global Positioning System GPS cannot provide adequate navigation performance such as indoors or in urban canyons. This paper describes the technical challenges of non-GNSS radio frequency navigation, with particular emphasis on signals of opportunity i.e., signals that are intended for purposes other than navigation. Advantages and disadvantages of signal of opportunity navigation are described, along with the dominant issues that must be dealt with in order to make such systems a practical reality.
- Navigation and Guidance
- Radiofrequency Wave Propagation