Underwater signal sequence, transmission device and evaluation device and marine craft or a fleet of marine craft

摘要

The under water signal sequence includes two acoustic sub-signals, where each sub-signal is assigned to a respective transmission time index and an expected time index. The individual sub-signal is identified by underwater signal sequences-correlation. One of the sub-signals is an active sonar signal, particularly an echo sounder signal. An independent claim is included for an evaluating device with receiving unit.