Method and apparatus for active sonar performance prediction

An apparatus for predicting an active sonar array's performance, comprising:

• a computer configured to be capable of:
• specifying an acoustic transmitter and an acoustic receiver of said active sonar array;
• selecting a geographical location;
• obtaining a database, a bottom composition database and a sound speed profile database for said selected geographical location;
• calculating a bottom-loss-and-scattering corrected-for-slope for said geographical location using said bottom composition database and said bathymetry database;
• and
• calculating a deterministic component of surface reverberation using said bottom-loss and scattering corrected for slope and said sound speed profile database by modeling an acoustic signal propagating from said acoustic transmitter to said acoustic receiver using a normal mode model.

A device for predicting an active sonar array's performance, comprising:

• means for specifying an acoustic transmitter and an acoustic receiver of said active sonar array;
• means for selecting a geographical location;
• means for obtaining a bathymetry, database a bottom composition database and a sound speed profile database for said selected geographical location;
• means for calculating a bottom-loss-and-scattering corrected-for-slope for said geographical location using said bottom composition database and said bathymetry database;
• and
• means for calculating a deterministic component of surface reverberation using said bottom-loss and scattering corrected for slope and said sound speed profile database by modeling an acoustic signal propagating from said acoustic transmitter to said acoustic receiver using a normal mode model.

A computer-readable medium for predicting an active sonar array's performance, comprising instructions for:

• specifying an acoustic transmitter and an acoustic receiver of said active sonar array;
• selecting a geographical location;
• obtaining a bathymetry database, a bottom composition database and a sound speed profile database for said selected geographical location;
• calculating a bottom-loss-and-scattering corrected-for-slope for said geographical location using said bottom composition database and said bathometry;
• and
• calculating a deterministic component of surface reverberation using said bathometry, said bottom-loss and scattering corrected for slope and said sound speed profile database by modeling an acoustic signal propagating from said acoustic transmitter to said acoustic receiver using a normal mode model.

A computing device for predicting an active sonar array's performance comprising:

• a computer-readable medium comprising instructions for:
• specifying an acoustic transmitter and an acoustic receiver of said active sonar array;
• selecting a geographical location;
• obtaining a bathymetry database, a bottom composition database and a sound speed profile database for said selected geographical location;
• calculating a bottom-loss-and-scattering corrected-for-slope for said geographical location using said bottom composition database and said bathymetry database;
• and
• calculating a deterministic component of surface reverberation using said bottom-loss and scattering corrected for slope and said sound speed profile database by modeling an acoustic signal propagating from said acoustic transmitter to said acoustic receiver using a normal mode model.