Ospirent - GNSS Multipath Simulation Software | Sim3D

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To contact GPSat Systems Australia about Ospirent GNSS Multipath Simulation Software | Sim3D use Get a quote.

Accounting for this is vital. Sim3D is the only solution that can give you the level of detail, control, and realism you need to overcome environmental impacts.

Spirent Sim3D is a unique approach to simulating multipath and obscuration based on a true to life synthetic environment. Different realistic environments can be modelled i.e. urban, deep urban, dense forest and highway. The interaction between the signal and the environment (building, cars, pedestrian, trees) is calculated by considering the shadowing and the multipath effects. 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 due to the geometry of the satellites and environmental conditions. The characterization and study of multipath is complex but important when its effects need to be compensated in the position, navigation, or timing solution. Sim3D is an innovative real-time system that allows the reproduction of authentic multipath that strictly depends on the 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.

The need for accurate positioning solution has been increasing in recent years, this is because of multiple new applications that rely on accurate positioning, i.e. autonomous vehicle and location-based services. In many cases the accuracy required is expected to be down to cm levels, testing such strict requirements is crucial for the success of such applications.

Key Features:

• Input real-world models, or choose from geo-typical environments
• Supporting all current and planned constellations and frequencies
• Signal code, carrier, and power manipulated by the environment for greater realism
• Up to 31 multipath signals per line of sight (LOS) simulatedSupports GPS, GLONASS, BeiDou, Galileo, QZSS, and SBAS
• Support all frequencies and codes currently simulated by Spirent simulator
• The signal code, carrier, and power are manipulated based on interaction with the environment
• Supports static and dynamic scenarios
• Up to 31 multipath signals per line of sight (LOS) simulated
• Up to 6 reflections per multipath computed
• Ability to generate your own 3D models
• Import externally generated models and objects
• Multiple 3D models are included
• Dynamic trajectory generation
• Support for a scene size of up to 5km2 or greater for highway scenes
• An unprecedented level of control
• Constellation and Frequencies to be used
• Obscuration mode on/off
• Multipath on/off
• Number of reflections per multipath signal
• User-defined filtering algorithms to simulate only multipath in chosen delay/power ranges
• Visualise the multipath direction of arrival
• Building and object materials are modelled and taken into account during the computation
• Support for hardware-in-the-loop setups

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To contact GPSat Systems Australia about Ospirent GNSS Multipath Simulation Software | Sim3D use Get a quote.