- The possibility density technology was used to entrap a little change of acoustical signal, which can discern the gas incursion and give the alarm efficaciously.
- underwater acoustical signal processing
- An examination of acoustic signaling systems among mammals gives us some scanty clues.
- Audio signal acquisition procedures, can show a number of acoustic signals.
- The relationship between acoustic signal frequency and beam diamter, which is inconsistent with the results of work[7. 8],is meassured to be f= Cs/2d.