New Method for Combining Optical and Acoustic Mapping Products
Abstract
Current mapping and charting methodologies requires separate vertical datums to be used for optical (topographic) and acoustic (bathymetric) datasets. Our objective was to develop a new mapping capability that would allow for the seamless combination of acoustic and optical mapping products. We hypothesize that a single, common datum between the datasets can be achieved by using a shared inertial measurement unit (IMU) to apply navigation and attitude corrections to both datasets. We concurrently collected two datasets using a topographic lidar unit for the optical data and a bathymetric dual-head multibeam echo sounder (MBES) for the acoustic data. Navigation and attitude data were collected and provided to both optical and acoustic datasets via a single Applanix POS/LV IMU. The study included successful bench testing of the full equipment setup and a successful land-based proof-of-concept test for a scaled-down setup.
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 22, 2022
- Accession Number
- AD1178236
Entities
People
- Abigail M. Hode
Organizations
- United States Naval Research Laboratory