Performance Evaluation of the DEMON Processor for Sonar

The Detection of Envelope Modulation on Noise (DEMON) is a processing technique used in SONAR for the detection and classification of underwater signatures produced by a target. This technique utilizes modulation analysis to determine the frequencies that modulate the broadband cavitation noise produced by marine vessel propellers. The paper discusses the details of DEMON processing and how it aids in classification. The paper also discusses the effect of the dual shaft propeller and how it will be manifested in the DEMON processor output. It also deals with the simulated signals to check the DEMON processor in a lab environment.