基于FPGA的调频连续波合成孔径雷达实时成像处理方法

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英文篇名：Real-time Implementation of Frequency-modulated Continuous-wave Synthetic Aperture Radar Imaging Based on FPGA 作者：王立 ; 张力川 ; 顾鹏程 ; 全英汇 英文作者：WANG Li;ZHANG Lichuan;GU Pengcheng;QUAN Yinghui;Southwest China Institute of Electronic Technology;National Laboratory of Radar Signal Processing, Xidian University; 关键词：合成孔径雷达 ; 高分辨实时成像 ; 现场可编程逻辑门阵列 ; 机载 英文关键词：SAR;;High resolution real-time imaging;;FPGA;;Airborne 中文刊名：XDYX 英文刊名：Journal of Detection & Control 机构：西南电子技术研究所;西安电子科技大学雷达信号处理国家重点实验室; 出版日期：2019-04-26 出版单位：探测与控制学报 年：2019 期：v.41;No.193 基金：国家自然科学基金项目资助(61303055) 语种：中文; 页：XDYX201902016 页数：6 CN：02 ISSN：61-1316/TJ 分类号：88-93

摘要

针对无人机载高分辨合成孔径雷达(SAR)实时成像对硬件资源消耗巨大的问题,提出了高效能的无人机载实时聚焦SAR成像处理方法。该方法基于单片FPGA,实现了结合运动补偿和距离多普勒二维匹配的高分辨率合成孔径雷达实时成像处理。仿真和外场实验表明,所提出的硬件架构在集成度和性能功耗比方面都取得了显著提升,在单位电路面积和功耗下大幅提升了SAR成像系统的处理性能,具有重要实际工程使用价值。
        Aiming at the problem that high-resolution real-time imaging of synthetic aperture radar(SAR) on unmanned aerial vehicle(UAV) consumes a lot of hardware resources, an efficient real-time imaging processing method for SAR is proposed. Meanwhile, high-resolution real-time imaging processing combining motion compensation and range Doppler two-dimensional matching is implemented based on a single field programmable gate array(FPGA). Simulation and field experiments show that the proposed hardware architecture has achieved significant improvements in integration and performance-to-power ratio and greatly improved the processing performance of SAR imaging system on unit area circuit and power consumption. The design has an enormous potential for engineering application.

引文

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