Give it a tinker. They could be real. The USAF was cited as considering using satellite for such purposes.
Check out the following youtube vid (CISCO telepresence holographic conference) :
And with the availability of invisibility cloaks material commercially, sensors or devices can be hidden in
the background using this invisibility cloaks, but still able to see from inside out, but invisi from outside.
This company supplies such materials : https://www.youtube.com/watch?v=_JpMJTJXf28
Below is excerpt from the above mentioned article : http://www.thehiddenevil.com/NewWorldWar.asp
Three-dimensional images that look like real: Institute for National Security Studies, US Air Force Academy, Nonlethal Weapons: Terms and References, July 1997, Dr. Robert J. Bunker; Defense Science Board, Future Strategic Strike Forces, February 2004; CNN, Holographic Television to Become Reality, July 10, 2008
Holograms can be projected: US Air Force, Air Command And Staff College, Maxwell AFB, An Operational Analysis for Air Force 2025: An Application of Value-Focused Thinking to Future Air and Space Capabilities, May 1996; The New Hampshire, UNH is Hub of Pentagon's 'Non-Lethal' Weapons Research Program, April 25, 2008, Derek Price; The Boston Globe, Non-Lethal Weapons: Sci-fi Meets Pentagon, November 20, 2000, Ellen Barry; Wall Street Journal, Nonlethal Arms, New Class of Weapons Could Incapacitate Foe Yet Limit Casualties, January 4, 1993, Thomas B. Ricks; Government Product News, Non-lethal Weapons Offer More Counter-Terrorism Options, November 1, 2003; Strategic Studies Institute, US Army War College, Nonlethality and American Land Power: Strategic Context and Operational Concepts, June 15,1998, Douglas C. Lovelace, Jr., Steven Metz
Holograms are also to be projected into rooms: University of Bradford, UK, Bradford Non-Lethal Weapons Research Project (BNLWRP), Research Report Number 5, May 2004, Neil Davison, Dr. Nick Lewer
sophisticated PsyOp to be used on the civilian: Defense Science Board, Future Strategic Strike Forces, February 2004
to scare a target individual to death: Institute for National Security Studies, US Air Force Academy, Nonlethal Weapons: Terms and References, July 1997, Dr. Robert J. Bunker
The Air Force has also considered using satellites: Center for Strategy and Technology, Air War College, Maxwell Air Force Base, Lasers In Space: Technological Options For Enhancing US Military Capabilities, November 1997, Mark E. Rogers, Lieutenant Colonel, USAF