高超声速飞行器载共形阵雷达成像技术

项目名称： 高超声速飞行器载共形阵雷达成像技术

项目编号： No.61201284

项目类型： 青年科学基金项目

立项/批准年度： 2013

项目学科： 电子学与信息系统

项目作者： 包敏

作者单位： 西安电子科技大学

项目金额： 25万元

中文摘要： 高超声速飞行器具有传统飞行器所无可比拟的诸多优势，是目前世界各国正在努力研究和发展的方向。结合共形阵和合成孔径雷达(SAR)成像技术，其能实现气动/隐身一体化设计以及对场景高分辨成像，有利于目标的检测、识别和跟踪，进而可以改善整个制导系统的性能。然而，由于其高速机动的运动状态，使得传统的成像方法不再适用。因此，本项目着重研究高超声速飞行器载共形阵雷达成像技术。结合压缩感知理论(CS)和最优化设计方法，探索共形阵优化设计方法、高效稳健的运动补偿算法、高分辨率侧视大场景成像算法和前视扫描SAR超分辨成像算法。同时，该技术的推广和应用潜力较大，可被广泛应用于机载SAR前视成像、阵列超分辨处理、非理想运动平台SAR成像等诸多方面。

中文关键词： 高超声速；运动补偿；共形阵；压缩感知；前视成像

英文摘要： Hypersonic vehicle owns many advantages over conventional vehicle,it is the trend that countries all over the world are developing. Combining conformal array with the synthetic aperture radar (SAR) imaging technology, it is possible to realize aerodynamics/invisibility integrative design and high resolution imaging, making it easy to perform detection, indication and tracing for the target. Thus, the performance of the whole guidance system will be enhanced. However, the traditional imaging method does not hold for the high speed moving state of the platform. Therefore, this project focus on the imaging technique for hypersonic vehicle-borne conformal array. Combining compressive sensing (CS) theory and the optimal design method, it is necessary to resort to method of optimization design for Conformal Arraya, new motion compensation method with high efficiency and stability, high-resolution wide-swath imaging algorithm and super-resolution imaging algorithm of forward-looking scan SAR. In addition, the extension and application of the technique have a bright future, and it can be applied to airborne SAR forward-looking imaging, array super resolution processing, unideal motion platform SAR imaging and so on.

英文关键词： hypersonic；motion compensation；conformal array；compressive sensing；forward-looking imaging