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中文摘要：
介绍了干涉合成孔径声纳海试样机的研制情况，重点阐述了其中的主要关键技术：实时干涉信号处理技术、高稳定性拖曳体设计以及高幅相一致性基阵设计，并给出了干涉合成孔径声纳的湖试和海试成像结果。结果表明：干涉合成孔径声纳海试样机系统稳定可靠，成功获取了海底的高精度数字高程图，距离分辨率达到2．5cm，方位分辨率达到5cm，高程测量精度约为0．15m。
英文摘要：
A prototype of Interferometric Synthetic Aperture Sonar （InSAS） for sea trial has been developed. The key techniques are described in detail, which include real-time interferometric signal processing, design of high-stable tow-fish and design of the hydrophone array with high amplitude-phase uniformity. The testing results in lake trial and sea trial show that the InSAS testing system is stable and robust for acquiring the precise Digital Elevation Model （DEM） of seabed with a resolution of 2.5 cm in across direction and 5 cm in along direction, respectively. And the measuring precision of DEM is about 15 cm.
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A quality-guided and local minimum discontinuity based phase unwrapping algorithm for InSAR/InSAS In
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