CompassData Ground Control Accuracy

CDI offers three levels of data collection to meet client needs. Sub-meter accuracy offers little help to a 15-cm resolution digital orthophoto project; in the same fashion, Centimeter accuracy ground control is drastic overkill for 0.8 meter satellite image support. We offer full consulting services to aid our clients in determining the accuracy standard and collection density for any given project.

As GPS technology has advanced, the accuracy of our collected points has increased as well. As we transitioned from Trimble ProXRS receivers to GeoXH receivers, we have seen an appreciable increase in resultant observed accuracies.

An accuracy assessment is provided to demonstrate the horizontal and vertical accuracies for each point collected. As we continue our collection processes with better equipment and more robust satellite constellations, we expect our accuracy levels to increase as a result.

Sub-meter Accuracy