Can "dynamic" data can be simulated with the DIRSIG model?

Yes. The DIRSIG model supports both dynamic scene content and dynamic platform positioning, platform orientation and platform relative pointing (e.g. scanning). The user can create dynamic scene content such as moving vehicles, spinning helicopter rotors, etc. through the scene motion mechanisms. The platform model is inherently dynamic and allows the user to supply platform location and orientation as a function of time. The sensors are attached to the platform via "mounts" of which several mount models are available including many that scan as a function of time (whisk scan, user-defined scan, etc.). The clocks for all the scene motion, platform motion, mount motion and focal planes can be synced to a central clock to make scripting of a complex collection easier.

The simulated data collection is controlled by the user specifying time windows during which the simulated system collects data. By specifying a time window, the simulated focal planes will collect sequences of images (based on the focal plane clock rate) which can be externally combined to make movies.