Global positioning system (GPS) and Global Navigation Satellite System (GNSS) are vital parts of navigation for ships or planes. Their accuracy has proven to be reliable and accurate that almost all industries that have navigational requirements use and have continued to use this technology. While there have been many developments to achieve modern devices, research continues to further improve and streamline current systems. One important component of research and development are simulations.
Simulations offer benefits not only in the advancement of current technology, but also in fixing past errors and modifying the ones used in navigation systems worldwide. There’s more to a GPS or GNSS signal simulator than meets the eye, though. Know why you need to learn about this critical part of navigational technology.
While extremely accurate and reliable most of the time, navigational systems can still make occasional errors. One example is the use of simulation in the Galileo Project, which tracks satellites and relays information to the main control base in Italy. Simulation can detect or even predict errors made by the satellite, which allows for the control base to make and send necessary corrections.
Simulations allow the creation and testing of new designs of navigational systems. Simulating signals is essential for proper calibration as well. The Galileo system is another product of simulation. Its initial status was developed through testing using simulated signals, leading to various advancements such as Open Service servers and Public Regulated Service.
Simulations also offer insight that leads to the solution of problems that global positioning systems and satellites might have. These are helpful in duplicating or recreating problems encountered in the field while inside the controlled space of a laboratory. Such a case was noted during a critical service issue in the satellite SVN-49. The simulation helped produce scenarios that led to a viable solution.
With the many developments in GPS and GNSS technology made in the recent years, navigation has been made easier for transport and communications industries worldwide, and with simulation, we can expect even more.