一种机载合成孔径雷达自主定位算法

doi:10.7527/S1000-6893.2014.0041

Abstract

Abstract:

Aimed at the application of airborne synthetic aperture radar (SAR), airborne SAR autonomous location technology is studied in this paper. A new location algorithm by imaging the area of the target repeatedly is proposed. This algorithm will not be influenced by the velocity error and angle error of the platform and it only uses the carrier aircraft instantaneous position and the distance between the radar and the target, which can significantly improve the location precision of airborne SAR. A location algorithm based on the least square method is analytically derived when carrier craft flights staring at target, which can further improve the location precision. Finally, the new presented method is compared with SAR location techniques based on the traditional R-D model. Real data processing results demonstrate that the new algorithm proposed in the paper can improve the location precision significantly.

Key words: airborne, synthetic aperture radar, autonomous location, location precision, least square

CLC Number:

SONG Wei, ZHU Daiyin, YE Shaohua, LI Yong. A Autonomous Location Algorithm of Airborne Synthetic Aperture Radar[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2014, 35(8): 2279-2285.

References

[1] Miao H. Research on airborne SAR geolocation accuracy. Beijing: Institute of Electronics, Chinese Academy of Sciences, 2007. (in Chinese) 苗慧. 机载SAR定位精度的研究. 北京: 中国科学院电子学研究所, 2007.

[2] Curlander J C. Location of spaceborne SAR imagery[J]. IEEE Transactions on Geosciences and Remote Sensing, 1982, 20(3): 359-364.

[3] Peng D Q, Lin Y Q, Du P F. A fast algorithm for latitude and longitude calculation of airborne SAR and its location precision analysis[J]. Modern Radar, 2010, 32(3): 48-52. (in Chinese) 彭代强, 林幼权, 杜鹏飞. 机载SAR图像快速经纬度计算及精度分析[J]. 现代雷达, 2010, 32(3): 48-52.

[4] Yao H Y, Sun W F, Qian L C. A method of absolute positioning of air-borne strip SAR image[J]. Journal of Air Force Radar Academy, 2009, 23(4): 257-260. (in Chinese) 姚汉英, 孙文峰, 钱李昌. 机载条带SAR图像绝对定位方法研究[J]. 空军雷达学院学报, 2009, 23(4): 257-260.

[5] Pedlar D N, Coe D J. Target geolocation using SAR[J]. IEE Proceedings-Radar,Sonar and Navigation, 2005, 152(1): 35-42.

[6] Gao X W. Huang G M. Yang R L. Study on a fast target location method for airborne SAR and location precision analysis[J].Modem Radar, 2004, 26(9): 4-7. (in Chinese) 高祥武, 黄广民, 杨汝良. 机载SAR目标快速定位方法和定位精度分析[J]. 现代雷达, 2004, 26(9): 4-7.

[7] Gutjahr K. A new InSAR geolocation algorithm//Proceedings of the 3rd European Conference on Synthetic Aperture Radar. Berlin, 2000: 309-312.

[8] Sun W F, Chen A, Deng H T, et al. A novel geometric calibration and target location algorithm for air-borne SAR image[J]. Acta Electronica Sinica, 2007, 35(3): 553-556. (in Chinese) 孙文峰, 陈安, 邓海涛, 等. 一种新的机载SAR图像几何校正和定位算法[J].电子学报, 2007, 35(3): 553-556.

[9] Yue X J, Han C M. Research on the mathematic model of direct geolocation with airborne SAR image//2011 International Symposium on Image and Data Fusion. Piscataway, NJ: IEEE, 2011: 1-4.

[10] Song S H, Rho S H, Jung C H, et al. Geo-location error correction for synthetic aperture radar image//Proceedings of IGARSS. Piscataway, WJ: IEEE, 2010: 3406-3409

[11] Wei B Y, Zhu D Y, Wu D, et al. An airborne SAR geolocation approach based on sum-difference beam SAR imagery[J]. Journal of Electronics & Information Technology, 2013, 35(6): 1464-1470. (in Chinese) 韦北余, 朱岱寅, 吴迪, 等.一种基于和差波束的机载SAR定位方法[J].电子与信息学报, 2013, 35(6): 1464-1470.

[12] Chen S C, He H Y, Yu H G. Constrained total least-squares for source location using TDOA measurements in the presence of sensor position errors[J]. Acta Aeronautica et Astronautica Sinica, 2013, 34(5): 1165-1173.(in chinese) 陈少昌, 贺慧英, 禹华钢.传感器位置误差条件下的约束总体最小二乘时差定位算法[J].航空学报, 2013, 34(5): 1165-1173.

[13] Mao Y F, Xiang M S, Wei L D. A block positioning method for airborne InSAR system[J]. Journal of Electronics & Information Technology, 2012, 34(1): 166-171. (in Chinese) 毛永飞, 向茂生, 韦立登. 一种机载干涉SAR区域网平面定位算法[J].电子与信息学报, 2012, 34(1): 166-171.

[14] Warner J G, Middour J W. Radar transmitter geolocation via novel observation technique and particle swarm optimization//Proceedings of 2012 IEEE Aerospace Conference. Piscataway, NJ: IEEE, 2012: 1-9.

[15] Zhang M, Guo F C, Zhou Y Y, et al. A single moving observer direct position determination method using interferometer phase difference[J]. Acta Aeronautica et Astronautica Sinica, 2013, 34(9): 2185-2193. (in Chinese) 张敏, 郭福成, 周一宇, 等.运动单站干涉仪相位差直接定位方法[J]. 航空学报, 2013, 34(9): 2185-2193.

A Autonomous Location Algorithm of Airborne Synthetic Aperture Radar

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