Ionospheric Clutter Suppression Algorithm Based on Space Multibeam for High Frequency Surface Wave Radar
YAO Di① ZHANG Xin①② YANG Qiang①② DENG Weibo①② CHEN Qiushi①
①(School of Electronics and Information Engineering, Harbin Institute of Technology, Harbin 150001, China) ②(Collaborative Innovation Center of Information Sensing and Understanding at Harbin Institute of Technology, Harbin 150001, China)
Abstract：In the small-aperture high-frequency surface-wave over-the-horizon radar system, the ionospheric clutter that covers a certain range bins, the Doppler bins and all the angle bins is generally existent. To restrain the clutter and ensure the submerged target easy detect, this paper presents an ionospheric clutter suppression algorithm based on spatial multi-beam. This method makes full use of the characteristics of the strong correlation between the beams in the wide beam and the characteristics of the number of range bins or Doppler bins covered by the clutter is far more than the number of bins covered by the target to achieve the clutter information estimation and suppression. The results of the simulation experiment and the measured data show that the method can effectively suppress the ionospheric clutter, and significantly improve the detection probability of the submerged target.
姚迪,张鑫,杨强,邓维波,陈秋实. 基于空间多波束的高频地波雷达电离层杂波抑制算法[J]. 电子与信息学报, 2017, 39(12): 2827-2833.
YAO Di, ZHANG Xin, YANG Qiang, DENG Weibo, CHEN Qiushi. Ionospheric Clutter Suppression Algorithm Based on Space Multibeam for High Frequency Surface Wave Radar. JEIT, 2017, 39(12): 2827-2833.
BARRICK D E. History, present status, and future directions of HF surface-wave radars in the U.S.[C]. IEEE International Radar Conference, Adelaide, 2003: 652-655. doi: 10.1109/ RADAR.2003.1278819.
[2]
PONSFORD A M and WANG J. A review of high frequency surface wave radar for detection and tracking of ships[J]. Turkish Journal of Electrical Engineering and Computer Sciences, 2010, 18(3): 409-428. doi: 10.3906/elk-0912-331.
[3]
JI Y G, ZHANG J, WANG Y M, et al. vessel target detection based on fusion range-Doppler image for dual-frequency hign- frequency[J]. IET Radar Sonar and Navigation, 2016, 10(2): 333-340. doi: 10.1049/iet-rsn.2015.0190.
[4]
WANG C Y, SU C L, and WU K H. Cross spectral analysis of CODAR-seasonde echoes from sea surface and ionospheric at Taiwan[J]. International Journal of Antennas and Propagation, 2017, 2017: 1-14. doi: 10.1155/2017/1756761.
[5]
KAMLI E, CHAVANNE C, and DUMONT D. Experimental assessment of the performance of high-frequency CODAR and WERA radars to measure ocean currents in partially ice-covered waters[J]. Journal of Atmospheric and Oceanic Technology, 2016, 33(3): 539-550. doi: 10.1175/JTECH-D-15- 0143.1.
[6]
WAN X G, KE H Y, and WEN B Y. Adaptive cochannel interference suppression based on subarrays for HFSWR[J]. IEEE Signal Processing Letter, 2005, 12(2): 162-165. doi: 10.1109/LSP.2004.840873.
[7]
CHEN S Y, GILL E W, and HUANG W M. A high-frequency surface wave radar ionospheric clutter model for mixed-path propagation with the second-order sea scatter[J]. IEEE Transactions on Antennas and Propagation, 2016, 64(12): 5373-5381. doi: 10.1109/TAP.2016.2618538.
[8]
JIANG W, DENG W B, and SHI J L. Characteristic study of ionospheric clutter in high-frequency over the horizon surface wave radar[C]. IEEE Youth Conference on Information, Computing and Telecommunication, Beijing, 2009: 154-157. doi: 10.1109/YCICT.2009.5382405.
ZHANG Yabin, CHEN Weidong, ZHANG Shouhong, et al. Interference and clutter mitigation based on SVD for HFGWR[J]. Journal of Electronics & Information Technology, 2006, 28(11): 1994-1997.
SU Hongtao, ZHANG Shouhong, and BAO Zheng. An algorithm for target range, azimuth angle and Doppler frequency estimation of HF-SWR[J]. Journal of Electronics & Information Technology, 2007, 29(3): 509-512. doi: 10.3724/ SP.J.1146.2005.00844.
[11]
LEONG H. Adaptive nulling of skywave interference using horizontal dipole antennas in a coastal HF surface wave radar system[C]. IEE Radar Conference, Edinburgh, 1997: 26-30. doi: 10.1049/cp:19971625.
[12]
WAN X R, KE H Y, and WEN B Y. Adaptive ionospheric clutter suppression based on subarrays in monostatic surface wave radar[J]. IEE Radar Sonar Navigation, 2005, 152(2): 89-96. doi: 10.1049/ip-rsn:20045020.
[13]
WU M, WEN B Y, and ZHOU H. Ionospheric clutter suppression in HF surface wave radar[J]. Journal of Electromagnetic Waves and Applications, 2012, 23(10): 1265-1272. doi: 10.1163/156939309789108570.
[14]
ZHANG X, YANG Q, YAO D, et al. Main-lobe cancellation of the space spread clutter for target detection in HFSWR[J]. IEEE Journal of Selected Topics in Signal Processing, 2015, 9(8): 1632-1638. doi: 10.1109/JSTSP.2015.2468193.
[15]
JI Y G, ZHAN J, WANG Y M, et al. Vessel target detection using zero-Doppler spectra of radar echo for high-frequency surface wave radar[J]. IET Radar Sonar and Navigation, 2016, 10(7): 1243-1248. doi: 10.1049/iet-rsn.2015.0495.
[16]
SALEH O, RAVAN M, RIDDOLLS R, et al. Fast fully adaptive processing: A multistage STAP approach[J]. IEEE Transactions on Aerospace and Electronic Systems, 2016, 52(5): 2168-2183. doi: 10.1109/TAES.2016.150366.
[17]
RAVAN M, RIDDOLLS R J, and ADVE R S. Ionospheric and auroral clutter models for HF surface wave and over-the horizon radar systems[J]. Radio Science, 2016, 47(3): 1-12. doi: 10.1029/2011RS004944.
