Efficient military intelligence transmission system for high quality video over mobile channels

A problem faced in the military intelligence transmission systems is the protection of highly sensitive real-time video information against multipath fading environments. The technique proposed is the implementation of M-level QAM in association with a novel fade estimation and compensation technique. A half-pilot symbol assisted modulation scheme, HP-SAM, a Reed-Solomon error correction coding as well as a non-uniform partitioning of the signal constellation are used. They result in considerable improvements in the bit and frame error rate performance. It is essential that the video is encoded with high compression rate. In this paper, we also proposed a highly efficient interframe coding technique that uses transmission via separate channels, each having differing degrees of error protection. The main focus of this paper is on the transmission aspects of the scheme and the performance enhancement they can provide.