Missing features of RTX Radar in Isaac Sim 5.0

Omniverse Isaac Sim
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1

Isaac Sim Version

5.0.0

Operating System

Ubuntu 22.04

Topic Description

Detailed Description

According to RTX Sensors — Isaac Sim Documentation, RTX Radar is based on the omni.sensors extension suite: Omniverse Radar Extension — Omniverse Kit

The omni.sensorsdetails that it has Custom AntennaGainMode with the possibility to define different gain pattern parameters like RxAntennaAzDeg, RxAntennaElDeg, RxAntennaCoGain, RxAntennaCrossGain, Tx…

These parameters are but totally missing in the Isaac Sim 5.0 version and AntennaGainMode cannot even set to Custom.

Could you please explain this?

2

Could you please review the information in the sensors documentation to see if it offers any relevant configuration options for your intended use case? Additionally, could you share more details about the scenario you’re trying to model or the specific workflow you need support for in Isaac Sim? This will help clarify whether the gap is due to a missing UI/API feature, a limitation in integration, or a documentation issue, and will assist in providing you with a more targeted solution.

3

According to the document in Sensors — Omniverse Materials and Rendering, there is a possibility to set AntennaGainMode to CUSTOM and the corresponding parameters like

  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:txAntennaAzDeg
  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:txAntennaCoGain
  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:txAntennaCrossGain
  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:txAntennaElDeg

Also the parameters like

  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:azimuthElementSpacing
  • omni:sensor:WpmDmat:scan:_INSTANCE_NAME_:elevationElementSpacing

are also available.

But, according to this document Omniverse Radar Extension — Omniverse Kit, above mentioned parameters are not available. Additionally, in Isaac Sim v5.0, these parameters do not appear under the radar properties. Could you explain which document to trust?

Using the radar and its datasheet that I have, I am trying to build a radar in the simulation as realistic as possible to validate the sim2real difference, the applications come after this validation depending how realistic the simulated radar one is :)

Thank you for your help in adavance

5

As the note in the current documentation (RTX Radar Sensor — Isaac Sim Documentation), those configured using a JSON file and corresponding support for Camera prims as RTX Radars was deprecated in Isaac Sim 5.0.

For up-to-date schema and implementation details related to radar simulation, please refer to the OmniSensorGenericRadarWpmDmatAPI specification and the inspect_radar_metadata.py example, which demonstrate usage of the OmniRadar prim.