SigSim Atmospheric Propagation

Atmospheric Propagation
 
SigSimRT uses innovative, extremely-fast path-integral/transport algorithms based on Modtran & Radtran-atmospheric physics licensed from AFRL. These algorithms operate on a common atmospheric data model, allowing the user to assign such parameters as the pressure, temperature, molecular species concentrations and weather state at any position in the WGS-84 3D atmospheric model. SigSimRT allows changes in atmospheric state or weather conditions on-the-fly, and provides real-time updates for the source irradiances and LOS atmospherics. SigSimRT atmospherics modeling includes transmittance, thermal path radiance and scattering --all completely correlated across sensor bands for the correct relative behavior.