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Posts Tagged "GNSS receiver testing"

The integration of GPS and GLONASS systems within the same receiver offers many advantages to both the manufacturer and the end user. And now that this integration is happening at the chipset level, several further advantages can be added to the list. On the basic technology level, the combination of GPS with GLONASS will provide greatly improved performance for the end user. The ability for the receiver to access signals from both constellations will provide greater availability, impr...

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Of all the performance metrics for a GNSS receiver, navigation accuracy is probably the most important. More to the point, pinpoint static navigation accuracy is essential to the end user. And if he or she doesn't get the exact location fix expected when the receiver is powered up for the first time, there will be little confidence in the overall performance of the receiver. Whether the initial “user test” takes place in the shop before purchase or at home when taking a new unit out...

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Location-Based Services put Pressure on GNSS Receiver Performance The addition of GPS receivers to today's smartphones, netbooks and other internet enabled devices is allowing mobile operators and other service providers to exploit a growing market for location-based services. These can range from social networks offering “find a friend” applications, to location based marketing and advertising. And you can be sure that developers will come up with many more new applications for loc...

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Like any form of radio receiver, a global navigation satellite system receiver will be subject to interference from multipath effects arising from the reflection and refraction of its intended satellite signals by both natural and man-made artifacts. However, unlike some radio systems in which a small degree of interference may be tolerable to the end user, multipath interference will have an unacceptable effect on a GNSS receiver, making the output both unstable and inaccurate. There are ...

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We sometimes get carried away into thinking everyone must know what a GNSS simulator is but in reality the proliferation of GPS / GNSS applications into many aspects of technology in such a short time span means that some people have had very little experience with GPS / GNSS technologies. So for those non-experts out there, I’d like to help. A GNSS simulator is a signal generator that provides an effective and efficient means of testing GNSS receivers and the systems that rely on the...

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