underwater signal sequence, the transmitting device and the evaluation device, as well as water or water vehicle fleet

摘要

In the case of which, in particular, echo sounders multipingverfahren insertion, is known that there are in the case of a plurality of soundings in a water column to a wrong allocation of the received echoes to the instants of transmission can occur. This in turn has the result that a wrong transit time is determined, which in turn leads to an incorrectly determined distance indication.The invention relates to a underwater signal sequence with at least two acoustic sub-signals, wherein each subsignal in each case a airtime index and is associated with a expected time index and by means of a underwater signal follow-correlation of the received signals of each individual subsignal is identifiable.With this underwater signal sequence a coded signal can be made available, with which a single ping of a sonar can be unambiguously identified.