EGM08 in ECEF
Earth Gravitational Model 2008 (EGM08) is the best, world-wide, freely-available model of the geoid. Earth-Centered Earth-Fixed (ECEF) is the 3-D, orthogonal, geocentric, Cartesian, coordinate system used by GPS, which empowers distortion-free visualization. Geoidal undulations are exaggerated 10,000 times here for visual effect.
Hydrometronics expertise was with:
- Technical software development
- Geodesy and cartography
- Seismic and subsea navigation
- Ocean-bottom positioning
- Inertial (IMU/INS) integration
- 3-D (ECEF) visualization
The scope of Hydrometronics’ offerings was due to the long career of its principal (click on the ‘About Noel’ link above). Hydrometronics was primarily a Matlab ® shop, providing compiled, user-friendly, GUI-driven applications, .NET or C-language DLLs, or C source code that solve client problems in all the fields cited above, which are not exclusively nautical. Hydrometronics ceased business in 2021. The relevant contents of the website have been preserved here.
In addition to software development, Hydrometronics consulted in all these fields, bringing a career of expertise to bear on your needs.
For a sampler of the disciplines addressed by Hydrometronics, visit the ‘Downloads’ link above for papers presented over the years.
Some Hydrometronics Projects Were:
- Topside GPS / IMU / magnetometer integration in a Kalman filter
- Subsea USBL / IMU / DVL / magnetometer integration in a Kalman filter
- Tidal prediction and real-time mean-sea-surface (MSS) computation application
- Seismic first-break ocean-bottom-node positioning “off-the-shelf” software
- Real-time seismic-spread navigation algorithm development
- Geodetic and cartographic validation of survey projects
- Total Propagated Uncertainty (TPU) for USBL-aided, AUV-mounted MBES
- SLAM EKF (Simultaneous Location and Mapping Extended Kalman Filter) simulation