Theses and Dissertations
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Automatic frequency tracking and an application of target trucking using passive doppler techniques.
(Monterey, California. Naval Postgraduate School, 1974)
A software package was developed to provide the inputs for a passive single-sensor acoustic tracker. This required a computation of sound propagation velocity and resolving high- resolution frequency information from ...
An investigation of the principles and techniques of Bragg diffraction laser beam probing of an ultrasonic field.
Probing of the near field of an ultrasonic beam in water with a thin laser beam has verified that a diffracted beam of light, whose amplitude is a function of the angle of incident light, is related to the spatial Fourier ...