一种用于近场雷达成像的圆弧投影算法

Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991 Pub Date : 1991-05-20 DOI:10.1109/NAECON.1991.165735

Yisu Xu, Zhaoda Zhu

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引用次数: 1

摘要

介绍了一种应用于近场雷达成像的圆弧投影算法。在较近的区域，由于波前曲率的影响，回波信号的采样不再是纯粹的频域数据。在这种情况下，利用传统的成像方法处理回波信号是不合适的。提出了近场校正的思想。将其与卷积反投影(CBP)算法相结合，得到了一种圆弧投影算法。给出了弧投影算法和常规CBP算法处理近场回波信号的计算机仿真结果，并进行了比较。

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An arc projection algorithm applied to near-field radar imaging

The authors describe an arc projection algorithm applied to radar imaging in a near-field case. In a close area, the samples of echo signal are no longer pure frequency-domain data due to wavefront curvature. In such cases, it is not proper to process echo signals by utilizing traditional imaging methods. The authors propose the idea of near-field correction. Combining it with the convolution backprojection (CBP) algorithm, an arc projection algorithm is obtained. Computer simulation results obtained by processing echo signals in the near-field using the arc projection algorithm and the conventional CBP algorithm are presented and compared.<>

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Proceedings of the IEEE 1991 National Aerospace and Electronics Conference NAECON 1991

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