Check out this video. By pure coincidence, I met Cam Nichols [KF7KIH] on a local ham radio repeater.
Cam was the project coordinator for this Le Tourneau DRM receiver project. It was a cooperative research project between HCJB, Le Tourneau and Rockwell Collins. I'm hoping we can get Cam to write us an article on his experiences working on this project!
Here is a PowerPoint presentation about the project.