Object identification based on filtering

The authors use an acoustic experiment to test a method for identifying radar or sonar targets based on information from the target's impulse response function. The new algorithm uses a long modulated pulse of relatively low resolution. Using concepts from the field of dynamics, the algorithm measures the similarity between a signal reflected from a target and a previously recorded reference. The authors conducted acoustic experiments with some simple objects to validate the algorithm, although the actual target identification method could be used for radar or sonar.