Qimera Direct to QPD Process

During initial import of raw sonar files, a Metadata Extraction job is launched.  During this job, Kongsberg files will be automatically converted to QPD files. This allows for immediate use of Kongsberg files in Surface Generation and editing operations.  Qimera will use the Kongsberg sounding solutions, as computed by the Kongsberg software during acquisition, in the creation of the QPDs.  This entails transforming the sonar-relative beam footprint solutions provided by Kongsberg into QPD format using the primary positioning and heading source as configured in real-time.  Due to the design of the QPD format, some minor mathematical transformations are done to re-reference the soundings to the transmitter transducer in the event that it is not the reference point used in the Kongsberg configuration.  This allows for direct use of re-navigation capabilities in Qimera without having to re-raytrace.  This operation does not involve a ray tracing correction since one is already applied by the Kongsberg software in real-time during acquisition.  This option is recommended if you have data with a reasonably good ray tracing correction that was applied during acquisition and you are confident in the sonar, positioning sensor and motion sensor installation locations, and angles as configured in the Kongsberg software.

In addition to Kongsberg .ALL Direct to QPD operations, Qimera also supports .GSF Direct to QPD. 

Return to: Dynamic Workflow

Return to: Qimera Table of Contents