CAJ | 학술논문

针对频率步进信号实现旋转式合成孔径雷达成像的难题，该文提出了脉冲间距离走动校正的旋转式合成孔径雷达成像方法。首先，推导了频率步进雷达旋转SAR几何模型，然后提出了频率步进雷达脉冲间距离走动及其频域校正方法，接着采用ω-k算法实现了场景的高分辨成像，最后对方位分辨性能进行了详细分析。计算机仿真结果验证了该方法的有效性以及高分辨性能。
침대빈솔보진신호실현선전식합성공경뢰체성상적난제，해문제출료맥충간거리주동교정적선전식합성공경뢰체성상방법。수선，추도료빈솔보진뢰체선전SAR궤하모형，연후제출료빈솔보진뢰체맥충간거리주동급기빈역교정방법，접착채용ω-k산법실현료장경적고분변성상，최후대방위분변성능진행료상세분석。계산궤방진결과험증료해방법적유효성이급고분변성능。
For ROtor Synthetic Aperture Radar (ROSAR) using the stepped-frequency waveform, an imaging method based on Range Migration Correction (RMC) for ROSAR is proposed. First, the signal model of ROSAR using stepped-frequency waveform is derived; Second, the range migration correction in frequency domain is proposed; Third, the high-resolution images are achieved by using the ω-k algorithm; Finally, the azimuth resolution performance is analyzed. Simulation results demonstrate the effectiveness and high resolution performance of the proposed method.