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Re-Entry Vehicle


During re-entry from space missions, communication links can experience a black-out due to the signal attenuation caused by the presence of the plasma surrounding the re-entry vehicle. The re-entry vehicle procedure provides the means to evaluate the extent of such attenuation.

The module accepts following input data:

  • Vehicle trajectory: speed and orientation;
  • Position of the ground/control stations;
  • Characteristics of the plasma wrapped around the re-entry vehicle;
  • Geometry of the vehicle;
  • Position and orientation of the antennas mounted on the vehicle.

Re-Entry Vehicle Capabilities

Typical outputs of the analysis are:

  • Antenna pattern distortions;
  • Channel transfer function.

Re-Entry Vehicle Output

Re-entry vehicle module allows the optimisation of antenna placement and orientation and the selection of the best possible vehicle trajectory in order to minimise or eventually eliminate the black-out phase in the communications between the vehicle and the ground stations

In these circumstances, the Frijs formula, the Field-field Reaction Integral and the Field-currents Reaction Integral are essential to calculate the antenna coupling.