逆合成孔徑雷達(dá)成象中距離校正的研究
THE ANALYSIS OF RANGE-ALIGNMENT IN INVERSE SYNTHETIC APERTURE RADAR IMAGING
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摘要: 本文分析了逆合成孔徑雷達(dá)(ISAR)成象中距離校正的基本原理,提出了兩種新的校正方法:峰值對(duì)準(zhǔn)法和直接校正法。利用雷達(dá)實(shí)測(cè)數(shù)據(jù),討論了上述新方法與幅度相關(guān)法的差別,從而肯定了直接校正法的優(yōu)越性。
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關(guān)鍵詞:
- 逆合成孔徑雷達(dá); 距離校正; 幅度均方差
Abstract: In this paper, the basic theory of range-alignment in Inverse Synthetic Aperture Radar (ISAR) imaging is analysed. Two new methods of range-alignment are proposed. One is peak point alignment, and another is direct range-alignment. Based on the measurel radar data, the differences between the above-mentioned new methods and amplitude correlation method are liscussed, resulting in the confirmation on the superiority of the direct range-alignment method. -
C. C. Chen, H. C. Andrews, IEEE Trans. on AES, AES-16(1980)1, 1-14.[2]B. D. Steinberg, Proc. IEEE, 76(1988)12, 1578-1592.[3]Y. W. Chen, R. S. Berkowitz, ISAR imaging technique for seasurface target, Proc. of the Int. Geoscience and Remote Sensing Symposium (IGARSS), Ann Arbor, (1987), pp. 723-728.[4]D. A. Ausherman et al.,IEEE Trans. on AES, AES-20(1984)4, 363-398.[5]D. Wehner, High Resolution Radar, Artech House, (1987), Chapter 7.[6]B. D. Steinberg.[J].Microwave Imaging with Large Antenna Arrays, John Wiley Sons.1983,:- -
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