실제 같은 인위적 환경에서 수신기 성능 검증

멀티패스와 신호차단은 GNSS 수신기에 결정적인 오류를 유발할 수 있습니다. 멀티패스 오류는 위성의 기하학적 위치와 환경 조건에 따라 몇 미터에서 몇 백 미터까지 차이가 날 수 있습니다. 이러한 요소를 고려하는 것이 대부분의 위치결정이나 위치탐색 그리고 타이밍 솔루션에 있어서 필수적입니다.

Sim3D는 멀티경로나 신호차단의 영향을 테스트할 때 현실감 있는 환경을 만들어주는 획기적인 3D 모델 시스템입니다. 시뮬레이트된 GNSS 신호가 전체를 사용자 지정할 수 있는 모델 및 환경과 상호 작용하며, 다른 솔루션에서 경험할 수 없는 차원의 디테일과 제어 그리고 현실감을 제공합니다.

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기능 및 이점

Realistic multipath and obscuration simulation
Multipath and obscuration is simulated based on a synthetic 3D model. Real-life locations can be regenerated and used in simulation to recreate the multipath signature of that location. In addition, traffic, crowd, and other objects are used in the simulation to provide a level of realism not available in any other product in the market.
Ability to simulate real life applications
Define your antenna carrier as a vehicle or pedestrian, then position your antenna relative to the carrier centre of gravity. The multipath and obscuration are computed considering the antenna carrier body position and motion. This provides valuable insight for optimising the location of the antenna for multipath/obscuration.
Better level of control and analysis with multipath simulation
Sim3D provides a level of control not available in any other multipath/obscuration simulation approaches. Choose which constellations to simulate, the number of reflections per multipath, the number of multipath signals per LOS, and much more.
Fully verified with real-life data
The performance of Sim3D simulation relative to field data has been exhaustively assessed, with good indicative results shown.
Full level of customisation
Sim3D enables you to choose between creating your own 3D models and using predefined models provided by Spirent. Many generic 3D model formats are supported using provided convertors, meaning existing or purchased models can be easily imported.

Flexible

Extreme flexibility

Sim3D offers users the flexibility to use either predetermined 3D models, or to generate new models defined by the user. In addition, externally generated models can be imported using provided converters. Sim3D supports both static scenarios and dynamic motion, with trajectories that can be either imported or generated within the software.

Easy to use

Supreme ease of use

Sim3D has been designed to package complexity in simplicity. Complex and realistic multipath signals, as well as line of sight, are mapped visually with colour coding. Spirent-generated integrations mean Sim3D can be easily incorporated into hardware-in-the-loop testbeds.

Satellite

Comprehensive testing tool

Sim3D supports all GNSS constellations, frequencies and codes generated by our industry leading simulation systems.

Gears White

High level of control

As well as choosing from a comprehensive range of signals, users can switch obscuration mode and multipath on and off; define the number of reflections per multipath signal; and define filtering algorithms to simulate only multipath in chosen delay/power ranges.

Accurately modelling and testing multipath signal propagation with Sim3D



Integrating third-party tools with a true-to-life GNSS signal environment



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