NVlabs/sionna-rt v2.2.0 on GitHub

Highlights

Added the radar cross-section (RCS) module sionna.rt.rcs.
- Added SensingTarget, a scene object whose scattering response is described by a ScatteringModel, i.e., a set of scattering points with their own RCS and cross-polarization matrix (CPM).
- Added RCSSolver, which computes the paths from transmitters to receivers through the scattering points of the sensing targets, including the Doppler shift due to target mobility.
- Added ConstantRCS, ConstantCPM, and ConstantRCSSensingTarget, a sensing target with a single scattering point of constant RCS.
- Added TR38901SensingTarget, implementing the UAV, human, vehicle, and AGV sensing target models of 3GPP TR 38.901.
- Added support for custom RCS and CPM callables through register_rcs() and register_cpm().
- Added SensingTarget.show(), an interactive 3D viewer of the bistatic RCS of a target's scattering points.
- Added the InteractionType.SENSING interaction type.
- Added Scene.sensing_targets to access all the sensing targets added to a scene.
Added Paths.concat() to combine paths, e.g., sensing paths from RCSSolver with background paths from PathSolver.

Scene.add() and Scene.remove() now accept scene objects and lists of items.
Objects and radio materials removed from a scene can now be added back or used in another scene.
The SceneObject constructor now accepts position, orientation, look_at, and velocity, and these can be set before the object is added to a scene.
SceneObject.clone() now preserves the orientation, scaling, and velocity of the original object.
Fixed a numerical imprecision in the computation of diffraction points (thanks to @olofnuggts).

Removed RadioMaterialBase.add_object() and RadioMaterialBase.remove_object(), as RadioMaterialBase.is_used is now derived from the objects of the scene.
Renamed the parameter of Scene.remove() from name to item.