APAS

The Active Pulse Analysis System (APAS) is a shore-based processing, analysis and classification management system for the processing of hydro-acoustic short-time signals, which supports submarine, surface ship and maritime aircraft operations.

APAS will allow the operator to conduct detailed pulse detection with a frequency range limited only by the sample rate of the recorded data.

APAS extracts the maximum acoustic intelligence possible from collected underwater acoustic signal emissions and transient signals. The analysis tools contained within APAS provide the operator with the ability to conduct detailed analysis of all aspects of the data including:

• High Frequency Resolution Processing of active transmissions
• Time
• Doppler shift
• Pulse Length and Pulse repetition times
• Modulation bandwidth
• Pulse Level
• Phase behaviour of e.g. underwater communication signals
• Processing of Active transmissions for very high frequencies