Title :
Estimating backscattering strength for a correlation log
Author :
Woodward, Bryan ; Forsythe, William ; Hole, Simon K.
Author_Institution :
Dept. of Electron. & Electr. Eng., Loughborough Univ. of Technol., UK
fDate :
7/1/1994 12:00:00 AM
Abstract :
A correlation log is a type of sonar system used for measuring the velocity of a surface vessel or of a submersible vehicle. The operation is similar to that of a conventional echo sounder, and the direction of acoustic propagation is vertically downwards. Since a correlation log can be used for either bottom tracking or water tracking, it is of interest to relate the transmitted power level to the echo levels from both bottom and volume scatterers, which is a means of predicting the log´s performance. This is done by modeling the transmission channel in terms of the sonar equations
Keywords :
acoustic wave velocity measurement; backscatter; correlation methods; echo; noise; oceanographic techniques; parameter estimation; sonar; underwater sound; acoustic propagation; backscattering strength; bottom scatterers; bottom tracking; correlation log; echo levels; echo sounder; modeling; sonar equations; submersible vehicle; surface vessel; transmission channel; transmitted power level; velocity measurement; volume scatterers; water tracking; Acoustic measurements; Acoustic scattering; Backscatter; Equations; Global Positioning System; Satellite navigation systems; Sonar equipment; Sonar navigation; Underwater vehicles; Velocity measurement;
Journal_Title :
Oceanic Engineering, IEEE Journal of
