Abstract
There are currently over 700 Global Navigation Satellite System (GNSS) reference stations actively broadcasting corrections (Active Control Stations — ACSs) in Canada. This number has been consistently growing since the early 2000s. In 2009, the federal, provincial, and territorial members of the Canadian Council on Geomatics (CCOG) recognized that consumers of GNSS corrections data had very little ability to verify that service providers were following best practices to ensure the quality of their work. It is common for surveyors to delineate property boundaries or to define the location of civil infrastructure with significant economic value, so being dependent upon another party without quality assurance was perceived as a major risk. Additionally, this new dependence upon commercial ACSs for GNSS corrections posed a threat to the consistency of position values in Canada. To address this concern, CCOG tasked its Canadian Geodetic Reference System Committee (CGRSC) with developing a plan to describe, validate, and provide certification of the GNSS corrections services consumed by industry. This paper summarizes the development of Natural Resources Canada’s (NRCan) Compliance Program for High Accuracy, GNSS Services, and how it can benefit professional surveyors across Canada.
Highlights
2.0 Terms and Definitions3.1 Site Location3.2 Satellite Visibility3.3 Radio Frequency Environment3.4 Antenna Mounting3.5 Ground-based Monuments3.6 Roof-based Monuments3.6.1 Structural Support3.6.2 Attachment to Structure4.3 Power and Computing4.4 Communication and Data Access
As the ‘active’ component of our national positioning infrastructure is being densified and expanded, a strategy for integrating the coordinates of all reference stations into the CSRS is required to maintain the consistency of the geodetic fabric. These best practice guidelines for reference station operators should encourage the selection of suitable locations and deployment of proper GNSS equipment to meet the performance requirements of most users
A Coordinate Referencing System (CRS) is usually materialized by an integrated network of monumented geodetic control points observed periodically or continuously; and whose coordinates are made accessible to end-users through data and products
Summary
2.0 Terms and Definitions3.1 Site Location3.2 Satellite Visibility3.3 Radio Frequency Environment3.4 Antenna Mounting3.5 Ground-based Monuments3.6 Roof-based Monuments3.6.1 Structural Support3.6.2 Attachment to Structure4.3 Power and Computing4.4 Communication and Data Access. These best practice guidelines for reference station operators should encourage the selection of suitable locations and deployment of proper GNSS equipment to meet the performance requirements of most users. A CRS is usually materialized by an integrated network of monumented geodetic control points observed periodically (passive) or continuously (active); and whose coordinates are made accessible to end-users through data and products.
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