Zonal Imaging Algorithm of Range-Speed Target Based on the LMSF Radar Signal

Abstract:

The automatic recognition of range-spread target is based on its range profile. When obtaining its range profile by using synthetic wideband radar signal, the different-range scatters would be overlapped because of the range-doppler coupling effect. The overlapping effect affects the ability of the automatic recognition algorithm. According to this, based on the Linearly Modulated Stepped Frequency (LMSF) radar signal, coherent processing of range profiles to obtain zonal image of range-spread target is proposed in this paper, which avoids the overlapping effect. The theoretical model of the zonal image of range-spread target is presented, the signal processing flow is derived, and the simulation result of zonal image is also given in this paper.

• Periodical: Applied Mechanics and Materials (Volumes 263-266)
• Pages: 462-467
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.263-266.462
• Online since: December 2012
• Authors: Yu Qiong Li, Song Hua He, Guang Zhu Li, Jianping Ou, Jun Zhang
• Keywords: LMSF, Range-Spread Target, Zonal Imaging

References

[1] Zhiyi He,The theory studies and realization of synthetic wideband on millimeter-wave seeker, the Second Academy of CASIC,Beijing, 2002.

[2] Jianping Ou, Yanping Hu , Guangzhu Li , et al, A New Velocity Compensation Method for LMSF Radar Signal,Modern Radar.34( 2012): 38-41.

[3] Suiyang Peng, Jianping Ou, Dawei Lu, et al, Frequency match algorithm based on the high repetition random stepped frequency wideband radar, Systems Engineering and Electronics. 33(2011): 759-763.

[4] Zhaozhao Gao, Mengdao Xing, Shouhong Zhang, et al, ISAR Imaging of High Speed Targets Based on LMSF Signal ,Journal of Electronics & Information Technology. 30(2008): 2813-2817.

DOI: 10.3724/sp.j.1146.2007.00894

[5] Jianhu Tu,Dan Nie,Huaitie Xiao,A new method of moving target velocity compensation based on FFT,Modern Radar, 31(2009):32-37.

[6] Bin Jiang, Xiang Li , Hangyong Cheng, et al, Studies on motion compensation for high resolution profile of extended target produced by stepped chirp radar, Signal Processing. 22(2006): 873-878.

[7] Baolan Song, Songhua He, Jun Zhang, Multi-target resolution and moving target discrimination based on zonary image ,Computer Engineering and Applications. 46(2010): 245-248.

[8] Wilkinson A J, Lord R T, Inggs M R, Stepped-frequency processing by reconstruction of target reflectivity spectrum . COMSIG'98. South African: IEEE, 1998. 101-104.

DOI: 10.1109/comsig.1998.736930

[9] Lord R T, Inggs M R. High resolution SAR processing using stepped-frequencies . IGARSS '97 . Singapore: IEEE, 1997. 490 - 492.

DOI: 10.1109/igarss.1997.615924

[10] Yiding Wang, Huibo Ji,Jun Hong , Application of Apodization Method in SAR/ISAR Processing, Journal of Electronics & Information Technology.25 (2003): 1622-1627.

DOI: 10.1109/igarss.2003.1295339