Chapter 9 Map Digitizing and GPS

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Presentation transcript:

Chapter 9 Map Digitizing and GPS For the book Mapping in the Cloud Guilford Press Michael P. Peterson

Raster Encoding

Vector Encoding

Other encoding methods

X,Y Coordinate Digitizer

Large format scanner

Raster to Vector Conversion

Relationship between Cartesian and spherical coordinates

GPS satellite

Handheld GPS receiver

Measuring signal travel time

GDOP - Geometric Dilution of Precision

Discriminating Signal from Background Noise

Signals from multiple satellites determine location

Differential Correction

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