Pulse Detonation Engines
Describes the theory of how these engines work.
www.aardvark.co.nz/pjet/pde.shtml
Caltech Explosion Dynamics Laboratory: Pulse Detonation Engines
Research into the propulsive concept in which the combustion chamber is periodically filled with a reactive gas mixture, a detonation is initiated, the detonation propagates through the chamber, and the product gases are exhausted.
www.galcit.caltech.edu/EDL/projects/pde/pde.html