基于多波束合成孔径声呐的三维场景构建仿真研究

Research on Multi-beam Synthetic Aperture Sonar 3-D Data Simulation

多波束合成孔径声呐(Multibeam Synthetic Aperture Sonar)是一种新型的图像声呐,具有独特的阵列结构,兼具合成孔径声呐与多波束测深声呐的优点。本文为了满足多波束合成孔径声呐仿真的需求,提出了一种基于延时表和阴影区的多波束合成孔径声呐的三维场景构建仿真模型。此仿真模型在点目标的基础上,根据延时表算法的基础上构建三维数据仿真模型,并通过阴影区算法模型添加不同波束照射下目标区域的阴影区域。点目标和体目标的仿真数据结构表明了此仿真模型的可行,可以为多波束都合成孔径声呐的信号处理、目标识别、测深成像绘图提供有力的支持。

The Multibeam Synthetic Aperture Sonar is a new imaging sonar that has the unic array structure. Multi-beam Synthetic Aperture Sonar is a new type of imaging sona that has combined of conventional multi-beam bathymetric sonar technology and conventional synthetic aperture sonar images technology. In this paper, a new method that focus on the Multi-beam Synthetic Aperture Sonar 3-D Data Simulation is proposed. And this simulation mode is based on acoustic techniques. The results on point target and 3-D target on computer simulation show that the model is practicable and can be used for the validation of MBSAS signal processing algorithm, processing of MBSAS images and targets recognition detection.