干涉式逆合成孔徑雷達三維成像技術(shù)研究
RESEARCH ON 3-D IMAGING TECHNIQUE FOR INTERFEROMETRIC INVERSE SYNTHETIC APERTURE RADAR
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摘要: 該文提出了干涉式逆合成孔徑雷達三維成像的方法,并對于涉式測角出現(xiàn)的角閃爍現(xiàn)象提出了判斷并剔除角閃爍點的準(zhǔn)則。然后分析了兩種跟蹤體制下的三維成像方法,并提出了克服連續(xù)跟蹤體制下跟蹤誤差引起的相位隨機抖動問題的方法,解決了步進跟蹤體制下各天線ISAR像焦點對齊問題。
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關(guān)鍵詞:
- 干涉式逆合成孔徑雷達; 三維成像; 角閃爍; 連續(xù)跟蹤; 步進跟蹤
Abstract: In this paper, a 3-D imaging technique for interferometric inverse synthetic aperture radar is presented. And the criteria of determing and the angle glint in interferometric angle measurement are given. Furthermore, the 3-D imaging technique under two tracking systems is analyzed. This technique can effectively overcome the random phase dithering caused by tracking error under the continuous tracking system and satisfactorily solve the alignment of the different focuses of ISAR images under the step tracking system. -
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