中文摘要：

针对干涉合成孔径声纳原始回波时域仿真方法速度慢的问题，提出了一种基于参考信号平移方法的快速原始回波仿真方法。该方．法是在计算各个接收子阵回波过程中，将因距离产生的时延转换为距离向上的平移量，并建立参考信号二维数组。点目标仿真和场景仿真实验验证了该方法的有效性。

英文摘要：

To cope with the low efficiency of time-domain simulator of raw echo for interferometric synthetic aperture sonar, a fast raw echo simulation method is proposed based on the reference signal translation. In the process of measuring the echo of each receiver, the time delay which depends on distance is translated into the translation along range and a two-dimensional reference signal array is established. Point target simulation and scene simulation experiments confirm the availability of this method.