201301 January/February 2013

GNSS and Ubiquity

GNSS and Ubiquity

Chris Rizos, University of New South Wales

GNSS is in a class of its own and the positioning/navigation/timing (PNT) technology of choice for most applications. Why wouldn’t we always use it?

It is affordable, it is a mature technology with many form factors, and its level of performance spans several orders of magnitude — millimeters to meters. There are a bewildering number of permutations of user equipment, augmentation solutions, processing algorithms, and operational procedures to choose from.

However. . . .

Figures 16 & 17: Developing a GNSS Position and Timing Authentication Testbed

Figures 16 & 17: Developing a GNSS Position and Timing Authentication Testbed

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Figures 14 & 15: Developing a GNSS Position and Timing Authentication Testbed

Figures 14 & 15: Developing a GNSS Position and Timing Authentication Testbed

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Figures 12 & 13: Developing a GNSS Position and Timing Authentication Testbed

Figures 12 & 13: Developing a GNSS Position and Timing Authentication Testbed

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Figures 10 & 11, Table 1: Developing a GNSS Position and Timing Authentication Testbed

Figures 10 & 11, Table 1: Developing a GNSS Position and Timing Authentication Testbed

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Figure 9 & Table 2: Developing a GNSS Position and Timing Authentication Testbed

Figure 9 & Table 2: Developing a GNSS Position and Timing Authentication Testbed

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Figures 7 & 8: Developing a GNSS Position and Timing Authentication Testbed

Figures 7 & 8: Developing a GNSS Position and Timing Authentication Testbed

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Figures 5 & 6: Developing a GNSS Position and Timing Authentication Testbed

Figures 5 & 6: Developing a GNSS Position and Timing Authentication Testbed

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Figures 3 & 4: Developing a GNSS Position and Timing Authentication Testbed

Figures 3 & 4: Developing a GNSS Position and Timing Authentication Testbed

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Figure 2: Developing a GNSS Position and Timing Authentication Testbed

Figure 2: Developing a GNSS Position and Timing Authentication Testbed

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Tables 1, 2 & 3: Galileo Altimetry Using AltBOC and RTK Techniques

Tables 1, 2 & 3: Galileo Altimetry Using AltBOC and RTK Techniques

Figure 18: Galileo Altimetry Using AltBOC and RTK Techniques

Figure 18: Galileo Altimetry Using AltBOC and RTK Techniques

Figures 16 & 17: Galileo Altimetry Using AltBOC and RTK Techniques

Figures 16 & 17: Galileo Altimetry Using AltBOC and RTK Techniques

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