一种多子阵合成孔径声纳成像算法研究

An Imaging Algorithm for Multi-receiver Synthetic Aperture Sonar

论文基于二阶泰勒展开公式和双根号方程的等价变换,对多子阵合成孔径声纳的双根号斜距历程进行级数近似,在此基础上推导了快速成像算法所必须的二维频域系统函数,并提出了一种多子阵合成孔径声纳距离-多普勒成像算法,计算机仿真实验验证了论文方法的正确性。

This paper uses two-order taylor expansion formula and the equivalent transformations of the radical function to approximate two double square rooted slant range history of multi-receiver synthetic aperture sonar （SAS）. Based on that, 2-D frequency domain system transfer function, which is important for fast imaging algorithms is derived. Then, the paper presents range-Doppler （R-D） algorithm for multi-receiver SAS based on phase centre approximation （PCA） method. Lastly simulated data is used to validate the presented processing method.