13. A speech detection and recognition system, comprising: one or more radar sensors supporting a plurality of simultaneous diverse wavelengths configured to remotely detect body motions from a speaker during vocalization and to extract Doppler signals correlated with the speaker vocalization, wherein the body motions comprise small vibrational displacements and articulator motions; one or more radar digital signal processors, connected to the radar sensors, and configured to develop feature vectors utilizing the vocalization Doppler signals; and one or more radar word classifiers configured to recognize words associated with the feature vectors.
13. A speech detection and recognition system, comprising: one or more radar sensors supporting a plurality of simultaneous diverse wavelengths configured to remotely detect body motions from a speaker during vocalization and to extract Doppler signals correlated with the speaker vocalization, wherein the body motions comprise small vibrational displacements and articulator motions; one or more radar digital signal processors, connected to the radar sensors, and configured to develop feature vectors utilizing the vocalization Doppler signals; and one or more radar word classifiers configured to recognize words associated with the feature vectors. 16. The system of claim 13 , wherein the radar sensor further comprises: a receiver configured to convert scattered radio frequency energy from the body motions into an intermediate frequency; and a clutter nulling feedback circuit configured to receive the intermediate frequency from the receiver and to attenuate clutter signals.