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Obscuration, as well as the reflection and diffraction of signals known as multipath, can be one of the main sources of error in a GNSS receiver. Multipath errors can vary from a few metres to hundreds of metres according to satellite geometry and the receiver environment. The characterisation and study of multipath is complex but important, as its effects need to be compensated for in most positioning, navigation, or timing solutions.
Sim3D is an innovative real-time system that enables the reproduction of an authentic multipath environment. The system combines a state-of-the-art GNSS simulator and an advanced GNSS propagation model. The propagation model relies on a 3D scene of the environment, which is used to generate the multipath and obscuration signature that strictly depends on the location of the receiver’s antenna – whether static or dynamic.
Sim3D enables testing in fully customisable environments, ranging from deep urban to dense forest to highway. With a wide range of models available, and the ability to build and introduce your own – including true-to-life buildings, cars, pedestrians, and trees – the level of detail is completely in your control.
Lange-Electronic GmbH
Rudolf-Diesel-Str. 29a
82216 Gernlinden
+49 8142 284582 0