Title :
Underwater acoustic interferometer
Author_Institution :
Naval Ship Research & Development Laboratory, Panama City, FL, USA
Abstract :
Measurements have been made showing the limitations a seawater medium imposes on the resolving power of underwater acoustic equipment. An interferometer was designed that is capable of measuring the "visibility"\´ of the interference fringes in the far field of an acoustic radiator. Phase and amplitude fluctuations of the divided acoustic wavefront are analyzed utilizing correlation techniques.
Keywords :
Bridges; Degradation; Delay; Frequency; Interference; Signal processing; Sonar equipment; Spatial coherence;
Conference_Titel :
Engineering in the Ocean Environment - Digest of Technical Papers, 1970 IEEE International Conference on
DOI :
10.1109/OCEANS.1970.1160964
