On Identification of Transmission Channels for Sonar Based Applications

Impulse response function and time delay estimation from the impulse response signal are considered. The work is looking from the sonar based applications point of view, where the time difference between transmitted pulse and received echo is important for target and object detection and recognition. Two steps are considered: identification of the sonar channel (air), by impulse response signal and, second, estimation of the time delay from the shape of the identified impulse response. The results are at the level of other previous works and create the motivation to implement these algorithms in practice.