针对水下航行器声探测效能定量评估需求，以被动声呐方程为基础，建立窄带水声探测模型，定量给出水下航行器辐射噪声声源级、海洋声场传播损失、海洋环境背景噪声级等声学安全态势评估输入参数，经信号处理得到了接收设备阵列响应。在此基础上，基于统计检测理论明确了水下目标探测距离，完成了水下目标安全态势分析。研究表明，水下航行器辐射噪声峰值线谱对声呐探测效能影响显著，峰值线谱的有效控制是优化水下航行器声学性能的关键。
Aiming at the requirement of quantitative evaluation of underwater vehicle acoustic detection efficiency, based on passive sonar equation, a narrow-band underwater acoustic detection model is established. The input parameters of acoustic safety situation assessment such as radiated noise source level of underwater vehicle, propagation loss of ocean sound field and background noise level of ocean environment are given quantitatively. The response of receiving equipment array is obtained by signal processing. On this basis, the detection range of underwater target is determined based on statistical detection theory, and the safety situation analysis of underwater target is completed. The results show that the peak line spectrum of underwater vehicle radiated noise has a significant impact on detection efficiency of sonar, and the effective control of the peak line spectrum is the key to optimize the acoustic performance of underwater vehicle.
2021,43(6): 90-94 收稿日期：2021-04-25
DOI：10.3404/j.issn.1672-7649.2021.06.017
分类号：TB123
基金项目：国家自然科学基金资助项目(U2006229)；国家重点研发计划(2016YFC0303406)和山东省重点研发计划(2019JZZY010125，2020CXGC010701)
作者简介：朱理(1986-)，男，工程师，研究方向为舰船总体
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