Research on Double Reference Source Estimation Method for 3-dimension Space of Near-field Underwater Moving Target withLinear Track

doi:10.3969/j.issn.1000-1093.2016.04.015

Abstract

Abstract: For the identification of noise source, the track information could be applied to Doppler compensation for the recorded noise emitted from moving vehicle. Linear track estimation of near-field underwater moving target by double pulse source (DPS) has been used successfully in 2-dimension. The use of DPS is extended to 3- dimension space in order to linearly track the target. The positioning result of double reference source obtained by the baseline positioning method is projected to a certain plane under the limitation of common perpendicular minimum length. The objective function of DPS is constructed with the known distance of double reference source. The track information in 3-dimension space is obtained by using genetic algorithm. The simulation results show that the estimated errors of azimuth and pitch angles are less than 3.8° when their trace line lies under \[-40°, 40°\] in case of 0 dB noise level. The estimated errors of abeam distance and depth difference are kept less than 5.9 m at the same time.

Key words: acoustics, parameter estimation, linear track estimation, double reference source, baseline positioning

CLC Number:

TB568

WANG Qian, HOU Hong, YIN Shao-ping, CHEN Zhi-fei. Research on Double Reference Source Estimation Method for 3-dimension Space of Near-field Underwater Moving Target withLinear Track[J]. Acta Armamentarii, 2016, 37(4): 677-683.

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