声呐图像 meaning in English

sonar image

The parallel computing ability of wave number domain algorithm is also being studied basically . the influence of the carrier movement errors on the sas image is analysed in chapter three firstly . based on studying those algorithms which have been successfully applied in sar , the limitations of these auto - focusing algorithms are discussed . hereafter an auto focusing algorithm based on time delay and phase error evaluation is raised , which can compensate big movement error effectively and so can be applied in sas
第三章首先分析了孔径上运动误差对合成孔径声呐图像的影响，在研究在sar领域里成功应用的算法的基础上，对其运动补偿的局限性做了分析，提出一种基于时延相位估计的自聚焦算法，它能够有效地补偿运动误差带来的影响，并且适用于sas运动误差较大的情况。