Intelligent receiver technology development testbed

Describes research and laboratory bench testing of new adaptive radio receiver methods that use embedded expert systems to assess and respond in real time to exigent electromagnetic and mission environments. The work has demonstrated integrated use of knowledge-based systems with adaptive signal processing techniques to recognize adverse conditions in the communications channel and to make intelligent system adjustments which provide the best overall receiver performance under those conditions. The processing architecture combines heuristic procedures with conventional decision/estimation and control theory methods to produce adaptive receiver control strategies from available data. The testbed intelligent receiver implementation incorporates a general-purpose HF receiver with remote digital control capability; a computer which hosts an expert system, numerical algorithms, and knowledge bases; discrete and data bus interfaces between the receiver and expert processor; and automated RF scenario generation instrumentation