CAJ | 학술논문

为了使传统波数域成像算法能够很好地适用于双基地合成孔径雷达（synthetic aperture radar， SAR），首先建立了双基地SAR的等效单站模型。然后又进一步建立了基于该等效单站SAR 的波数域二维频谱模型。通过分析发现，传统的波数域成像算法会造成波数域回波信息的损失，从而达不到理想的聚焦效果，所以为了充分利用全部波数域回波信息以提高聚焦能力，提出了一种全新的波数域成像数学模型。最后实验结果验证了新算法的有效性。
위료사전통파수역성상산법능구흔호지괄용우쌍기지합성공경뢰체（synthetic aperture radar， SAR），수선건립료쌍기지SAR적등효단참모형。연후우진일보건립료기우해등효단참SAR 적파수역이유빈보모형。통과분석발현，전통적파수역성상산법회조성파수역회파신식적손실，종이체불도이상적취초효과，소이위료충분이용전부파수역회파신식이제고취초능력，제출료일충전신적파수역성상수학모형。최후실험결과험증료신산법적유효성。
An equivalent monostatic model is first established for the traditional Omega-K imaging algo-rithm being to be applied to the bistatic synthetic aperture radar (SAR).Then,based on the equivalent monos-tatic SAR,a two-dimensional spectrum model is further established.In fact,the traditional Omega-K imaging algorithm can cause the loss of echo information,so the optimal focusing effect can not be approached.There-fore,a kind of new Omega-K imaging mathematical model is proposed in order to make full use of all echo infor-mation and effectively improve the focusing performance.Finally,the experimental results show that the above-mentioned methods are valid and feasible.