Sonar Target Classification
DALMO VICTOR TEXTRON BELMONT CA
Pagination or Media Count:
Classification of the physical properties of sonar targets is difficult with conventional sonar techniques. The signals scattered from schools of fish and other objects can appear to be similar to those scattered by submarines. The employment of the ASPECT technique to identify submarines requires relatively long periods of time to achieve the correlation required for positive identification typically 2 minutes. Identification from the range rate of targets also takes considerable time. The amplitude modulation of the scattered signals produced by propellers does not provide a very dependenable method for discrimination. It is felt that a considerable increase in the probability of identifying submarines with a single detection pulse can be obtained with existing equipment by utilizing high range resolution techniques, optimum signal processing and display methods. By decreasing the probability of false alarms for short periods of time, dependable classification should be possible for realistic tactical situations.
- Acoustic Detection and Detectors