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Filtering by: Subject GPS receivers -- Evaluation

Mapping-grade GPS accuracy in second growth Douglas-fir forest

Creator:

Frank, Jereme M.

Abstract:

The global positioning system (GPS) has come into widespread use for many forestry applications. However, there is still some uncertainty as to how receivers perform in dense forest, where trees interfere with the GPS signal and increase error. These two manuscripts examine GPS accuracy and overall effectiveness within second growth...

Resource Type:

Masters Thesis

Full Text:

) significantly influenced GPS accuracy, while terrain and receiver settings did not. Average errors were 2.9 m
Modeling biomass transport on single lane forest roads and monitoring GPS accuracy for vehicle tracking under different forest canopy conditions

Creator:

Simwanda, Matamyo

Abstract:

The transportation of wood and biomass resources from landing and other collection locations to processing and distribution sites is a substantial cost within the wood supply chain. These high costs provide a basis for research aimed at improving biomass transportation planning decisions and potentially reducing biomass transportation costs. Chip vans...

Resource Type:

Masters Thesis

Full Text:

reliability of GPS receiver measurements for moving vehicles under forest canopy and in mountainous terrain
An ultra low voltage micropower GPS receiver RF front-end for wildlife tracking

Creator:

Heiberg, Adam C.

Abstract:

A fully integrated CMOS GPS receiver RF front end optimized for low power operation is presented. The system operates with a supply voltage down to 250 mV. A prototype has been fabricated in a 0.13μm CMOS process and includes a low voltage LNA, quadrature oscillators, and quadrature mixers. It exhibits...

Resource Type:

Masters Thesis

Full Text:

Ultra Low Voltage Micropower GPS Receiver RF Front-End for Wildlife Tracking Abstract approved: Terri