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论述了合成孔径技术在声纳上应用的主要技术难点及解决的方法。主要介绍宽带合成孔径声纳对目标分辨的湖上实验情况,以铜球和塑料浮球作为目标,做了单目标和多目标粗分辨试验以及多目标高分辨试验。最后介绍了用合成孔径技术探测沉底目标并对目标成像的湖上试验。在两次试验都有一定运动误差的情况下(尤其是后一次试验),对点目标的分辨试验和对煤气瓶的轮廓成像试验结果均令人满意。
The main technical difficulties and solutions to the application of synthetic aperture in sonar are discussed. This paper mainly introduces the experiment on the lake of target resolution for broadband synthetic aperture sonar. The copper ball and the plastic float are taken as the targets. The single-target and multi-target coarse resolution experiments and multi-target high-resolution experiments are done. Finally, the experiment of detecting the sinking target and imaging the target by the synthetic aperture technique is introduced. In both cases there is a certain motion error (especially the latter test), the resolution of the point target and the outline of the gas cylinder imaging test results are satisfactory.