Compressive Millimeter-Wave Phased Array Imaging
Compressive Millimeter-Wave Phased Array Imaging
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DOI：
10.1109/access.2016.2635118
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发表时间：
2016
期刊：
影响因子：
3.9
通讯作者：
Qiao Cheng;A. Alomainy;Y. Hao
中科院分区：
文献类型：
--
作者：
Qiao Cheng;A. Alomainy;Y. Hao
本文介绍了一种三维压缩相控阵成像方法。推导出的系统模型是通用的，也可以用于其他阵列配置。由于其压缩采样能力，所提出的方法可以恢复图像与远少于传统的基于傅立叶变换的方法所需的样本。这种测量策略大大减少了数据采集时间，但代价是更高的计算成本。成像结果表明，在距离和交叉距离方向的分辨率增加。此外，波束操纵数据的使用使得在存在噪声的情况下比其在切换阵列方案中的对应物具有更好的重建质量。传感配置，如阵列长度和角度的数量，影响重建性能，也进行了分析。
In this paper, we introduce a 3-D compressive phased array imaging method. The derived system model is general and can also be used in other array configurations. With its compressive sampling capability, the proposed method can recover images with far fewer samples than traditionally required in Fourier transform-based methods. This measurement strategy greatly reduces the data acquisition time at the expense of higher computational costs. Imaging results show increased resolving power in both range and cross-range directions. Moreover, the use of beam steered data enables better reconstruction quality in the presence of noise than its counterpart in switched array scheme. Sensing configurations, like array length and number of angles, which affect the reconstruction performance, are also analyzed.