Here is a good PPT on Hypersonic "double ramp" nozzles
http://www.uni-stuttgart.de/itlr/graduierten/grk_introduction.pdf
@Sakal Gharelu Ustad @Mad Indian @Yusuf
Nope.
As soon as you touch these speeds, due to the physics of hypersonic you will be detected.... glide or no glide, its the intense motion and heat in the air that gives you up.