Performance of two differential global positioning system (DGPS) receivers for precision agriculture

C.W. Chan

Abstract

The implementation of spatially variable crop production (SVCP) requires an in-field positioning system for mapping and/or sensing of field attributes. Positioning system requirements for mapping and/or sensing are different in terms of position resolution, reliability and dynamic performance. This paper describes the accuracy of two differential global positioning system (DGPS) receivers for data collection in SVCP. Results indicated differential signal is important for high position resolution. The DGPS receiver using wide area satellite based differential signal performed better than the beacon-based DGPS signal.

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