The Differential Time-Delay Estimation Method for the Radiated Noise of the Vessel by the Passive Ranging
Shigemitu Kurano, Bukichi Nakano · IEEJ Transactions on Electronics Information and Systems · 2002
In this paper, we investigated the new passive ranging system to located the moving target. Then we computed the time-delay difference on the output of a cross-correlater between two radiated noise signals received by the acoustic sensors, and we solved three-dimensional equations for the acoustic velocity and these sensor's co-ordinates positions. Still more, we investigated the issue point for the new passive ranging system are applied to the radiated noise of the vessel. Therefore, we analised the radiated noise signal of the target fishing boat which were collected in the test sea zone for clearing the acoustic characteristic, sampling the trackingsignal and computing the time-delay difference between two radiated noise signals received by the acoustic sensors.