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Posts Tagged "GNSS receivers"

Although there is no specific product standard for EMC in GNSS receivers, testing for immunity to electromagnetic interference has to be an essential part of the product development process. Any receiver designed for low-level signals will inevitably be susceptible to electromagnetic interference. And GNSS receivers inevitably are required to operate reliably in areas where they will be subject to any number of sources of interference. These range from natural phenomena such as solar ra...

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The GPS Aided Geo Augmented Navigation or GPS and Geo Augmented Navigation system (GAGAN) is a space-based augmentation system (SBAS) funded by the Indian government. Interestingly, Gagan is not just an acronym: it is also a Sanskrit word for the sky. The GAGAN space transponder is due to be launched on 19th May 2011 on an Ariane-5 launcher from the European Space Agency (ESA) spaceport in Kourou, French Guiana. This will be the second attempt to get GAGAN into orbit. The first satelli...

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Record and playback systems (RPSs) such as the new Spirent GSS6400 can be used at many stages of the GNSS receiver design cycle and for many different tasks. However, one application that may not seem immediately obvious is in testing the ability of multi-GNSS receivers to work with both existing and future satellite systems. Clearly, the RPS cannot be used to playback signals from non-existent satellites. But used in conjunction with a simulator, the RPS can play a key role in...

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