HF Radio Communication Systems Design Assessment. Task 3.3f. Real-Time Adaptive Control and Processing.

摘要

The emphasis in this Real-Time Adaptive Control and Processing task has been on automated frequency management, link connectivity control, channel evaluation, and data transmission adaptation for maximum throughput. The possibilities for a federated processing system were considered as adjunct to maximizing information throughput via the HF communications system. Control aspects for digitally interfaced transmission systems which might connect to the HF channel for further data transmission were not analyzed. The processing and control requirements for automated frequency management have been incorporated in the real-time adaptive control and processing technology analysis. The frequency management capabilities hypothesized have been modeled after the Army's evolving management concepts. A closed-loop concept of frequency management was assumed to be implemented by collecting data at the net station level and transmitting this information, when polled, to the NCS. The NCS would process this information and transmit statistical parameters to the Corps level. This data could be processed further and passed to the Theater Frequency Manager to substantiate Corps requests for different or additional frequencies. Meaningful numbers in terms of measured bit error rates, noise levels, multipath delay spread, and Doppler frequency spread can be used to improve subsequent predictions and frequency assignments.