External/internal data fusion testbed: History, components, and experimental analysis (speech processing, audio processing functions)

Rome Laboratory (RL) has been performing speech processing research and development since the early sixties. Areas of research include speech recognition, speaker identification, language identification, keyword recognition, platform identification, and external/internal (E/I) data fusion.; This thesis describes in detail an experiment to optimize the weighting of external, internal and ELINT information using the RL E/I Data Fusion Testbed. Internals are RL audio processing functions, such as speaker and language identification. Externals are other information that can be obtained from the audio signal such as transmission frequency, direction and modulation type. ELINT is the process of observing radar signals to obtain information about their capabilities.; This thesis also describes a series of experiments which can be performed on this Testbed. A preliminary experiment was designed and performed to determine the best set of externals for the Testbed.