New Sound Velocity Correction for HIPS and SIPS
CARIS (Canada) has introduced a new sound velocity correction algorithm to HIPS and SIPS that improves results for many mid and deep-water sonar equipment and benefits some shallow-water multi-sector systems as well. The algorithm was based on research from the Ocean Mapping Group of the University of New Brunswick, Canada, and accounts for the separation between transmit and receive arrays when performing ray-tracing.
By defining the location of the separate arrays a more robust estimate of the path of each beam to the seafloor and back can be made, taking into account the physical separation between the arrays and the movement of the vessel through the water between transmit and receive.
Burns Foster, HIPS and SIPS product manager, explained that with an increase in the use of multi sector sonar a more sophisticated method of ray-tracing was needed.
The algorithm was initially developed to work with Kongsberg sonar data and has been successfully implemented for some other common beam-forming multibeam systems as well. This enhancement is now available for download from the CARIS Online Customer Services website for free for all users of HIPS and SIPS 9.0 with a valid subscription.
Image: Sound velocity correction accounting for array separation.
