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Questions Facing Modern GNSS Developers

In the past, designers of satellite-based navigation systems have been mostly restricted to using a single system and service, the GPS C/A code.

The current revolution in the industry is giving rise to not only new GNSS systems, some GNSS systems, notably GPS and Galileo, have multiple services available to the commercial GNSS designer. The question of which system or blend of systems a GNSS designer should consider, along with the potential for multiple services is thus an entirely new consideration.

The application of the receiver under development may define the answer to this new conundrum to some extent, but in many cases the only way to answer the question fully before committing to a particular design path is to investigate the options available using a GNSS simulator.

While questions surrounding the pure accuracy of any given receiver using either one or multiple GNSS systems or services need to be answered, there are also a multitude of associated questions regarding device performance, such as power consumption, interface, multipath and interference resistance etc. that also need to be answered.

The availability of multi-frequency, multi system, multi service GNSS simulators allows the GNSS developer to answer these questions with complete confidence in the final design choice. Furthermore, the simulator is invaluable in the actual design effort and integration of the receiver into a given application.

 
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