Advanced HF digital networks

The authors introduce technology enhancements in HF communications that have been developed by Rome Laboratory (RL). Titled `Improved HF Data Network´ (IHFDN), the technology improvements for this effort addressed networking for a large mobile network of up to 100 users contained in up to 10 nets having a totally distributed architecture. Specifically, improvements covered are in HF networking, LQA (link quality analysis) techniques, LPD/LPE (low probability of detection/low probability of exploitation) waveforms for operational security, and frequency-hop frequency management. This Phase I effort has made available a PC portable simulation with design, user, and programmer manuals, and a final report with an appendix covering the cooperative work done between RL and others