基于USBL的声呐阵列接收指向性在线标定方法

2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC) Pub Date : 2022-10-25 DOI:10.1109/ICSPCC55723.2022.9984321

Peng Zhao, Wanting Shi, Jianyu Xie, Yongjie Sheng, Yuebing Wang, Yanqi Wu

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引用次数: 0

摘要

提出了一种开放水域低频声纳接收指向性的在线定标方法。采用超短基线(USBL)定位和坐标变换技术分别解决标定过程中的定位和定向问题。为了提高定位精度，优化了阵列设计，扩大了阵列元素的距离。选取线性调频(LFM)脉冲信号和伪随机编码脉冲信号，分别采用脉冲压缩法和复相关法提高测距精度和测向精度。设计了仿真声纳接收阵列，并在2kHz ~ 8kHz频率下进行了仿真和动态实验。结果表明，改进后的定位方法具有更高的定位精度和更强的抗干扰能力，指向性角误差在5.24%以内。

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Online Calibration Method of Sonar Array Receiving Directivity Based on USBL

An on-line calibration method for receiving directivity of low-frequency sonar in open water is proposed. Ultra short baseline (USBL) positioning and coordinate transformation technology are used to solve the positioning and orientation problems in the calibration process, respectively. In order to improve the positioning accuracy, the array design is optimized by expanding the array element distance. Linear frequency modulation (LFM) pulse signal and pseudo-random coding pulse signal are selected, and pulse compression method and complex correlation method are used to improve the ranging accuracy and direction finding accuracy, respectively. Simulated sonar receiving array is designed and simulation and dynamic experiments are implemented at the frequency of 2kHz to 8kHz. The results show that the improved positioning method has higher positioning accuracy and stronger anti-interference ability, and the directivity angle error is within 5.24%.

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来源期刊

2022 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC)

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