Shared Flashcard Set
Cards
Term
|
Definition
| graph that can be used to estimate noise level from a variety of sources within the frequency range of interest |
|
|
Term
|
Definition
The ratio of the recieved echo from the target to the noise produced by everything else.
SNR = SL-NL-TL+DI |
|
|
Term
|
Definition
The maximum allowable one way transmission loss in passive sonar, and the maximum two way transmission loss in active sonar while still ebing able to retain a detection probability of 50%.
FOMp = SL - NL + DI - DT
FOMa = SL + TS + DI - NL - DT |
|
|
Term
|
Definition
| When there is a layer of positve gradient over a negative gradient. The speed of sound is maximum at the boundary. |
|
|
Term
|
Definition
|
|
