PRESAGIS Modelling and Simulation Suite

This provides a complete module-based toolchain for modeling, terrain generation, and last but not least, simulation.

The included programming interface guarantees the customized adaptation and control of the software. Communication between the individual toolboxes of the PRESAGIS Suite is possible via the standard CIGI or DIS or HLA interfaces.

Use of the PRESAGIS software at the Institute of Flight Systems:

The tool is used for 3D modelling of the required buildings and objects and for adapting existing models. In addition, the textures used are materials of a standard classification specific for IR simulation. 143 materials supported by the Common Database Standard (CDB) are available, which can also be combined with different layer thicknesses.

Terra Vista is used to replicate the UniBw M test flight site. The focus is on terrain generation and material classification of the underlying satellite texture. The virtual environment is composed of elevation data, vector data, satellite images and the previously created 3D models. 

This tool serves as an editor for creating virtual scenarios and missions. Using the ground population function, we can automatically place a large number of vehicles and objects in a predefined road network. The AI running in the background then controls the movement and logical processes. STAGE is used to create scenarios for the development of evaluation metrics for aircraft operating in a network.

With the help of FlightSIM different flight models can be simulated in real time. The connection of FlightSIM to Vega Prime enables a realistic movement of an onboard camera of an aircraft.
By generating flight trajectories, which the aircraft can automatically fly in the simulation, tests of various scenarios are reproducible.
Supported by a so-called Flight Management System (FMS), the same flight path can also be flown several times, for example to investigate influences on the camera simulation when parameters of the environment change (daylight, clouds, wind).

The Vega Prime tool is used to render and visualize the electro-optical camera view placed in the virtual environment. It facilitates the integration of an atmospheric damping simulation MOSART (MOderate Spectral Atmospheric Radiance and Transmittance) to generate atmospheric effects.

HyperTextures are used to reproduce fine structures of the subsurface based on the material classification.

The tool provides an infrared simulation of the camera view. The physical model of a sensor model is adopted, which uses the material classification of the CDB database.

 It is planned to adopt the Ondulus Radar used in the lecture Flight System Technology II to demonstrate the functionality of radar devices, along with examples of the common modes.

Extensions of the PRESAGIS Software

• Integration of the SpeedTree® module to model vegetation with 3D trees and ground vegetation
• Dynamic simulation of people and the associated movement patterns with the aid of the DI-Guy® module (VT MAK)
• Generation of cloud scenarios with the SilverLining® Module:  simulation of different cloud types and atmospheric effects for the investigation of cloud segmentation algorithms and for determining the distance to clouds