An underwater navigation system based on multi-orthogonal signals and its lake trial

In this paper, a new underwater navigation system based multi-orthogonal signals is proposed. The principle of the system is presented, including waveform design method and position calculation method. Then the system design is descripted, which is composed of a transmit beacon and a receiver. The performance of the proposed system is verified through the lake trial. It is shown that the proposed system can obtain high positioning accuracy up to 0.26% slant range.