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When the size of target or the rotation angle is big, migration through resolution cell may occur in the bistatic inverse synthetic aperture radar (ISAR), which will affect the imaging quality. Aiming at the problem of migration through resolution cell of bistatic ISAR in the presence of time-varying bistatic angle, a correction algorithm is proposed in this paper. Firstly, the echo model of bistatic ISAR is built, and the mechanism of migration through resolution cell is analyzed. Migration through range cell may be corrected through the generalized Keystone transformation, and the effect of non-uniform rotation is eliminated at the same time. Then the rotating center is estimated according to the maximum criterion of image contrast, and the range bin is scaled absolutely. A phase compensation term is constructed and the correction of migration through Doppler cell is finished. Finally, the simulations are carried out and the results show that the method proposed in this paper can solve the problem of migration through resolution cell and improve the image quality.
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Keywords:
- bistatic inverse synthetic aperture radar /
- bistatic angle /
- migration through resolution cell
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[2] Ji W J, Tong C M 2013 Chin. Phys. B 22 020301
[3] Zhang Y M, Wang Y H, Zhao C F 2010 Chin. Phys. B 19 084103
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[5] Peng S B, Xu J, Meng C Z, Yang J, Peng Y N 2013 IET International Radar Conference Xi'an, China, April 14-16, 2013 p1
[6] Bai X R, Zhou F, Xing M D, Bao Z 2010 IEEE Trans. Geosci. Remote Sens. Lett. 7 430
[7] Fabrice C, Ali K, Alexandre B 2006 IEEE Trans. Antenn. Propag. 54 3529
[8] Ma C, Gu H, Su W M, Li C Z 2014 Acta Phys. Sin. 63 028403 (in Chinese) [马超, 顾红, 苏卫民, 李传中 2014 63 028403]
[9] Pan X Y, Wang W, Feng D J, Liu Y C, Fu Q X, Wang G Y 2014 IET Radar Sonar Navig. 8 173
[10] Zhu R F, Luo Y, Zhang Q 2011 Modern Radar 33 34 (in Chinese) [朱仁飞, 罗迎, 张群 2011 现代雷达 33 34]
[11] Xing M D, Wu R, Bao Z 2005 IEE Proc. Radar Sonar Navig. 152 58
[12] Zheng P, Jing X J, Sun S L, Huang H 2012 3rd IEEE International Conference on Network Infrastructure and Digital Content Beijing, China, September 21-23, 2012 p562
[13] Zhu X P, Zhang Q, Zhu R F 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar Xi'an, China, October 26-30, 2009 p977
[14] Zhang L, Li H L, Qiao Z J, Xing M D, Bao Z 2013 IEEE Trans. Geosci. Remote Sens. Lett. 10 1394
[15] Horvath M S, Gorham L A, Rigling B D 2013 IEEE Trans. Aerosp. Electron. Syst. 49 1402
[16] Wang Y, Li J W, Chen J, Xu H P, Sun B 2014 IEEE Trans. Geosci. Remote Sens. 52 640
[17] Wang W Q, Cai J Y 2010 IEEE Antenn. Wireless Propag. Lett. 9 307
[18] López-Dekker P, Mallorquí J J, Serra-Morales P, Sanz-Maros J 2008 IEEE Trans. Geosci. Remote Sens. 46 3459
[19] Krieger G, de Zan F 2014 IEEE Trans. Geosci. Remote Sens. 52 1480
[20] Bao Z, Xing M D, Wang T 2010 Radar Imaging Technology (Beijing: Publishing House of Electronics Industry) pp243-249 (in Chinese) [保铮, 邢孟道, 王彤2010雷达成像技术(北京: 电子工业出版社)第243–249页]
[21] Ye C M, Xu J, Zuo Y, Peng Y N, Wang X T 2009 J. Tsinghua Univ. (Sci. Technol. Ed.) 49 1205 (in Chinese) [叶春茂, 许稼, 左渝, 彭应宁, 王秀坛 2009 清华大学学报 (自然科学版) 49 1205]
[22] Dong J, Shang C X, Gao M G 2012 J. Electron. Inform. Technol. 32 1855 (in Chinese) [董健, 尚朝轩, 高梅国 2012 电子与信息学报 32 1855]
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[1] Yang Z Q, Zhang Y S, Luo Y J 1998 Bistatic (Multistatic) Radar System (Beijing: Defense Industry Press) pp14, 15 (in Chinese) [杨振起, 张永顺, 骆永军1998双(多)基地雷达系统(北京: 国防工业出版社)第14, 15页]
[2] Ji W J, Tong C M 2013 Chin. Phys. B 22 020301
[3] Zhang Y M, Wang Y H, Zhao C F 2010 Chin. Phys. B 19 084103
[4] Ma C Z, Yeo T S, Guo Q, Wei P J 2012 IEEE Trans. Geosci. Remote Sens. 50 3859
[5] Peng S B, Xu J, Meng C Z, Yang J, Peng Y N 2013 IET International Radar Conference Xi'an, China, April 14-16, 2013 p1
[6] Bai X R, Zhou F, Xing M D, Bao Z 2010 IEEE Trans. Geosci. Remote Sens. Lett. 7 430
[7] Fabrice C, Ali K, Alexandre B 2006 IEEE Trans. Antenn. Propag. 54 3529
[8] Ma C, Gu H, Su W M, Li C Z 2014 Acta Phys. Sin. 63 028403 (in Chinese) [马超, 顾红, 苏卫民, 李传中 2014 63 028403]
[9] Pan X Y, Wang W, Feng D J, Liu Y C, Fu Q X, Wang G Y 2014 IET Radar Sonar Navig. 8 173
[10] Zhu R F, Luo Y, Zhang Q 2011 Modern Radar 33 34 (in Chinese) [朱仁飞, 罗迎, 张群 2011 现代雷达 33 34]
[11] Xing M D, Wu R, Bao Z 2005 IEE Proc. Radar Sonar Navig. 152 58
[12] Zheng P, Jing X J, Sun S L, Huang H 2012 3rd IEEE International Conference on Network Infrastructure and Digital Content Beijing, China, September 21-23, 2012 p562
[13] Zhu X P, Zhang Q, Zhu R F 2009 2nd Asian-Pacific Conference on Synthetic Aperture Radar Xi'an, China, October 26-30, 2009 p977
[14] Zhang L, Li H L, Qiao Z J, Xing M D, Bao Z 2013 IEEE Trans. Geosci. Remote Sens. Lett. 10 1394
[15] Horvath M S, Gorham L A, Rigling B D 2013 IEEE Trans. Aerosp. Electron. Syst. 49 1402
[16] Wang Y, Li J W, Chen J, Xu H P, Sun B 2014 IEEE Trans. Geosci. Remote Sens. 52 640
[17] Wang W Q, Cai J Y 2010 IEEE Antenn. Wireless Propag. Lett. 9 307
[18] López-Dekker P, Mallorquí J J, Serra-Morales P, Sanz-Maros J 2008 IEEE Trans. Geosci. Remote Sens. 46 3459
[19] Krieger G, de Zan F 2014 IEEE Trans. Geosci. Remote Sens. 52 1480
[20] Bao Z, Xing M D, Wang T 2010 Radar Imaging Technology (Beijing: Publishing House of Electronics Industry) pp243-249 (in Chinese) [保铮, 邢孟道, 王彤2010雷达成像技术(北京: 电子工业出版社)第243–249页]
[21] Ye C M, Xu J, Zuo Y, Peng Y N, Wang X T 2009 J. Tsinghua Univ. (Sci. Technol. Ed.) 49 1205 (in Chinese) [叶春茂, 许稼, 左渝, 彭应宁, 王秀坛 2009 清华大学学报 (自然科学版) 49 1205]
[22] Dong J, Shang C X, Gao M G 2012 J. Electron. Inform. Technol. 32 1855 (in Chinese) [董健, 尚朝轩, 高梅国 2012 电子与信息学报 32 1855]
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