Quality Controls
Quality controls are integrated in the normal survey procedures and commence from the establishment of the flight paths until the delivery of the data and reports to the client. Before the survey, the quality controls are applied in order to make sure that:- The survey specifications are adequate for the targets
- The survey specifications are safe for the personnel and the equipments
- The navigation is safe considering the topography and the meteorological conditions
- The equipments and instruments are conform to the survey specifications (both for hardware and software)
- The spare parts and necessary instrumentation are available to perform the survey in an expeditious manner
- The aircraft maintenance facilities and spare parts are available
During the survey, the quality controls are applied by the Project Manager. In flight, the quality controls are computer-performed and the pilot stops the survey if the geophysical or/and aeronautical parameters don’t meet the survey specifications. The data of the base-station are computer-controlled and the flights are stopped if the level of activity does not meet the survey specifications.
After each flight, the raw data are checked for quality and completeness and then securely stored. For each flight, the following controls are applied:
- Sample separation
- Flight path deviation
- Altitude deviation
- Data noise level