Force XXI Land Warrior: a systems approach to speech recognition

Speech recognition is continually being realized as a user interface in new applications. As this technology progresses, it enables new ways for humans to interact with machines and information. The performance in many domains has approached users´ expectations. Although there are still abundant technology challenges ahead, speech recognition has reached a maturity level that requires one to consider its deployment in complex systems and environments. It is in this vein that we discuss a systems approach to the successful execution of speech recognition within the Force XXI Land Warrior program. We discuss the system voice control component as it fits within the overall program. The requirements for robustness, recognition, and computational complexity issues are addressed. We explicitly cover the system aspects and how they influence the user interface and reveal the parameters for actual use. Finally, we consider the implementation of a polynomial-based classifier for speech recognition, and we provide the final system performance measures on a large domain specific database