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Passive ranging with the SNAP model
E. J. Sullivan
其他書名
a performance study
出版
SACLANT ASW Research Centre
, 1987
URL
http://books.google.com.hk/books?id=POFBHAAACAAJ&hl=&source=gbs_api
註釋
A passive ranging technique which used SNAP, the SACLANT Centre's normal-mode model, is studied. An examination is made of the sensitivity of the technique to errors in the assumed sound velocity profile and tilting of a 16 lambda vertical receiving array. Also, the effect of both white and coloured noise in investigated. Results indicate that for the scenario considered (summer profile in the Mediterranean with a water depth of 130 m and source ranges of 10 and 25 km), the method can be quite robust to sound velocity profile errors on the order of several m/s and array tilts on the order of 1.5 deg. Solutions were obtained with input signal-to-noise ratios as low as -13dB. Keywords: Array tilt, Bottom properties, Coloured noise, Depth, Gaussian noise, Inverse problem, Maximum likelihood, Passive ranging, Propagation, Sensitivity, Signal-to-noise ratio, SNAP(SACLANTCEN Normal mode Acoustic Propagation), Sound velocity profile, White noise.
