基于连续扩展的线性声向量传感器阵列的完全可引导的差分束成型
Xingyu Huang1,2,3, Shiqi Mo1,2,3, Bo Wang1,2,3
1College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China.
The Journal of the Acoustical Society of America
|November 19, 2025
概括
本研究介绍了一种使用 Jacobi-Anger 扩展 (JAE) 的新型差分束成形方法,以克服麦克劳林系列扩展 (MSE) 束成形用于声学阵列的性能问题. JAE方法提供了更好的性能和对MSE限制的理论解释.
科学领域:
- 声学 声学 在声学方面
- 信号处理 信号处理
- 阵列信号处理 阵列信号处理
背景情况:
- 可导向的差分束成形对于声学传感器阵列至关重要.
- 基于麦克劳林序列扩展 (MSE) 的方法遭受性能恶化.
- 这种退化与MSE方法中的截断错误有关.
研究的目的:
- 为线性声学矢量传感器阵列提出一种新的差分光束成形设计.
- 为了解决基于MSE的方法中观察到的性能退化问题.
- 建立一个理论上的MSE和雅可比-安吉尔扩张 (JAE) 之间的联系.
主要方法:
- 雅科比-安杰扩展 (JAE) 与切比舍夫多项式相结合,用于更高阶的光束模式.
- 为基于JAE的差分光束变压器开发一个封闭式解决方案.
- 理论分析将MSE与JAE联系起来,确定截断错误是MSE性能损失的原因.
主要成果:
- 一个基于JAE的新差分光束变器设计是通过封闭式解决方案实现的.
- 在MSE中,截断的错误被确定为性能下降的主要原因.
- 拟议的JAE方法在同等截断订单的替代方案相比显示出更高的性能.
- 分析了影响JAE方法白噪声增益的因素.
结论:
- 拟议的基于Jacob-Anger扩展 (JAE) 的差分束成形方法有效地解决了麦克劳林系列扩展 (MSE) 方法的性能降低问题.
- 在线声向量传感器阵列中,JAE方法为可转向差分束成形提供了更强大,更准确的解决方案.
- 实验验证,包括海上实验,证实了基于JAE的方法的实际有效性.
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