MEMS矢量水听器用于潜标系统的可行性（英文）

发布时间：2018-09-07 20:36

【摘要】：提出将MEMS矢量水听器应用于潜标系统,并进行了大量实验验证其可行性。MEMS矢量水听器是一种新型水下声学传感器,它具有体积小、成本低、一致性高和高灵敏度等优点。将水听器应用于潜标系统,可以大幅降低阵列孔径,进而有效地监测海洋声场的矢量信息。矢量水听器矢量通道的指向性与频率无关,在低频和甚低频同样可以获得良好的空间增益,应用在低频和甚低频领域中,可以有效地解决声纳设备体积庞大的问题。经过对系统样机进行多次室内驻波桶调试和外场湖试与海试,结果表明,该系统能有效检测海底20~1000Hz范围内的声场矢量信号,水听器此时的灵敏度可达-176dB,且具有良好的"8"字型指向性。实验结果证明了MEMS矢量水听器应用在潜标系统中进行海洋声场矢量信息探测的可行性,为MEMS矢量水听器在水下目标探测领域的研究提供了良好的试验平台,并为其工程化应用奠定了基础。
[Abstract]:A new underwater acoustic sensor based on MEMS vector hydrophone is proposed, and its feasibility is verified by a large number of experiments. It has the advantages of small size, low cost, high consistency and high sensitivity. The hydrophone used in the submarkage system can greatly reduce the array aperture and effectively monitor the vector information of the ocean sound field. The directivity of vector channel of vector hydrophone is independent of frequency, and good spatial gain can be obtained in low frequency and very low frequency. The problem of large volume of sonar equipment can be effectively solved when applied in low frequency and very low frequency fields. The system prototype has been debugged for many times in standing wave bucket and field lake test and sea test. The results show that the system can effectively detect the acoustic field vector signal in the range of submarine 20~1000Hz. The sensitivity of the hydrophone is up to 176dB and has good "8" directivity. The experimental results show that the application of MEMS vector hydrophone in underwater target detection system is feasible, and it provides a good experimental platform for the research of MEMS vector hydrophone in the field of underwater target detection. And lay a foundation for its engineering application.
【作者单位】：中北大学仪器科学与动态测试教育部重点实验室;中北大学电子测试技术国家重点实验室;
【基金】：supported by National High Technology Research and Development Plan of China(2013AA09A412)
【分类号】：TB565.1

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