Parametric analysis of echosounder performance.
Fuller, Robert Judson
Walters, Donald L.
Shaw, William J.
MetadataShow full item record
An echosounder is used to probe various atmospheric parameters. An acoustic wave is transmitted into the atmosphere and information deduced from the backscattered energy. This thesis seeks to understand the range limitations of the echosounder and to explore methods to quantify atmospheric turbulence parameters at a given range. The propagation of the acoustic energy, including the effects of excess attenuation, are modeled to predict the performance of an echosounder when various parameters are changed. The electronics of an existing echosounder are investigated to understand inherent or design limitations.
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
McLaren, A.S.; Bourke, R.H.; Weaver, R.L.S. (International Atomic Energy Agency (IAEA), 1991);The US Navy has recently developed an underwater acoustic propagation loss model suitable for use in ice-covered seas. The under-ice scattering component of this model requires a spatially varying input data base of ice ...
Cherry, David R. (Monterey, California: Naval Postgraduate School, 1993-06);Atmospheric turbulence degrades a coherent laser beam when it propagates through the atmosphere. Measurement of the atmospheric turbulence provide insight into to underlying mechanisms that produce optical turbulence and ...
Liu, Jeng-Shiung (Monterey, California. Naval Postgraduate School, 2004-12);Optical turbulence plays an important role in the propagation of electromagnetic waves through the atmosphere because it broadens and distorts the optical beam. A variety of optical, thermal, and acoustic instruments are ...