Moving Source Localization in Near-field by a Stationary Passive Synthetic Aperture Array
A new method for localizing a near-field moving source using stationary underwater acoustic array is proposed in this paper. Using a phase correction factor calculated from two specific snapshots, the effective array aperture is extended, and the 2-D range-bearing spectrum can be obtained by the extended array aperture. According to the 2-D range-bearing spectrum, we can compute the source’s location in near-field at any specified time instance. More snapshots around the specific snapshot are used to obtain a set of additional spectrums and average processing is carried out for these spectrums to suppress the effects of measurement error. Simulation results are presented to demonstrate the feasibility of the proposed method.
ZhiweiWang FengTian YixinYang LingjiXu
College of Underwater Acoustic Engineering, Harbin Engineering University, HarbinNation Laboratory o School of Marine Technology，Northwestern Polytechnical University, Xi’an
国际会议
2011亚太信号与信息处理协会年度峰会(APSIPAASC 2011)
西安
英文
1-6
2011-10-18（万方平台首次上网日期，不代表论文的发表时间）