小斜视角单输入多输出稀疏线性阵列相参频率分集成像
发布时间：2019-01-29 02:55
【摘要】：现代高分辨雷达通过大带宽获得高距离分辨率,通过大孔径获得高方位分辨率。该文根据单输入多输出(SIMO)线性阵列天线的基本原理,借鉴了频率分集相参处理的思路,用两个阵元实现了多阵元所形成的波束,并结合高分辨1维距离像(HRRP)方法,实现了目标的2维成像。进而为了减小频率分集所需的发射阵元工作带宽,该文结合稀疏天线阵元思想,通过设计阵元分布,用较少的频率分集实现了大孔径。仿真验证了所提方法的有效性。
[Abstract]:Modern high resolution radar obtains high range resolution through large bandwidth and high azimuth resolution through large aperture. According to the basic principle of single input and multiple output (SIMO) linear array antenna and the idea of frequency diversity coherent processing, this paper uses two array elements to realize the beam formed by multi-array elements, and combines the high-resolution 1-D range profile (HRRP) method. The two-dimensional imaging of the target is realized. Furthermore, in order to reduce the bandwidth of emission array elements required for frequency diversity, this paper combines the idea of sparse antenna array element and designs the distribution of array elements to achieve large aperture with less frequency diversity. Simulation results show the effectiveness of the proposed method.
【作者单位】： 空军工程大学信息与导航学院;68205部队72分队;武警工程大学信息工程系;
【基金】：国家自然科学基金(61172169,61102109) 中国博士后基金(2012M521897) 陕西省自然科学基金(2012JQ8036)资助课题
【分类号】：TN957.52
[Abstract]:Modern high resolution radar obtains high range resolution through large bandwidth and high azimuth resolution through large aperture. According to the basic principle of single input and multiple output (SIMO) linear array antenna and the idea of frequency diversity coherent processing, this paper uses two array elements to realize the beam formed by multi-array elements, and combines the high-resolution 1-D range profile (HRRP) method. The two-dimensional imaging of the target is realized. Furthermore, in order to reduce the bandwidth of emission array elements required for frequency diversity, this paper combines the idea of sparse antenna array element and designs the distribution of array elements to achieve large aperture with less frequency diversity. Simulation results show the effectiveness of the proposed method.
【作者单位】： 空军工程大学信息与导航学院;68205部队72分队;武警工程大学信息工程系;
【基金】：国家自然科学基金(61172169,61102109) 中国博士后基金(2012M521897) 陕西省自然科学基金(2012JQ8036)资助课题
【分类号】：TN957.52
【参考文献】
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