© The Institution of Engineering and Technology
This study simulated the broadening first-order sea clutter spectrum and analysed the influence of ionosphere and bistatic angle on sea clutter spectrum for high-frequency (HF) hybrid sky-surface wave radar based on the mechanism of sea clutter broadening. Firstly, according to the propagation characteristics of HF waves in the ionosphere and the mechanism of the ionosphere contamination, a method of dynamic ionospheric phase contamination simulation is introduced. Secondly, the formula of the Bragg frequency of first-order sea clutter is presented derived from the system configuration, and a simulation method of broadening sea clutter is given. The influence of bistatic angle and different ionosphere state on the first-order sea clutter spectrum is further analysed. Finally, the results of theoretic analysis are examined with the experimental results based on the newly developed integrated HF sky-surface wave radar experimental system, and the dominant factor of sea clutter broadening is studied. Simulation results show that the results of experiment consist with that of theoretic analysis, simulated broadening sea clutter can better describe the characteristics of measured sea clutter.
References
-
-
1)
-
3. Lesturgie, M., Flecheux, M.: ‘NOSTRAMARINE: a multistatic detection concept adapted to the detection of low attitude targets’. , AGARD Conf. Proc., France, 1997.
-
2)
-
15. Yongli, J.: ‘Comparison and analysis of ionospheric phase decontamination methods for backscattered signals’, Chin. J. Radio Sci., 2008, 23, (3), pp. 484–490.
-
3)
-
8. Peng, L.: ‘The operating frequency selection in HF hybrid sky-surface wave radar’. 2010 Ninth Int. Symp. Antennas Propagation and EM Theory (ISAPE), 2010, pp. 513–516.
-
4)
-
18. Barrick, D.: ‘Remote sensing of sea state by radar’. 1972 IEEE Int. Conf. Engineering in the Ocean Environment, 13–15 September 1972, pp. 186–192.
-
5)
-
5. Riddolls, R.J.: ‘Limits on the detection of low-Doppler targets by a high frequency hybrid sky-surface wave radar system’. IEEE Radar Conf., Rome, Italy, 26–30 May 2008, pp. 1–4.
-
6)
-
2. Gordon, J.F.: ‘Forward-based receiver augmentation for OTHR’. 2007 IEEE Radar Conf., pp. 373–378.
-
7)
-
14. Parent, J.: ‘Statistical study of the spectral broadening of sky-wave signals backscattered by the sea surface: application to RMS wave height measurement with a sky-wave radar’, IEEE Trans. Antennas Propag., 1989, 37, (9), pp. 1201–1206 (doi: 10.1109/8.35801).
-
8)
-
J. Walsh ,
W. Huang ,
E. Gill
.
The first-order high frequency radar ocean surface cross section for an antenna on a floating platform.
IEEE Trans. Antennas Propag.
,
9 ,
2994 -
3003
-
9)
-
12. Baker, D.C.: ‘Multiparabolic ionosphere model for SSL application’, Electron. Lett., 1998, 24, (7), pp. 425–426 (doi: 10.1049/el:19880288).
-
10)
-
6. Peinan, J., Longquan, Y.: ‘New propagation mode associating with HF sky-and-surface wave and its application’, Chin. J. Radio Sci., 2007, 22, (5), pp. 746–750.
-
11)
-
19. Gill, E.: ‘The scattering of high frequency electromagnetic radiation from the ocean surface: an analysis based on a bistatic ground wave radar configuration’. PhD thesis, Faculty of Engineering and Applied Science Memorial University of Newfoundland, 1999, pp. 1–178.
-
12)
-
7. Wei, J.: ‘Analyse of sea clutter for HF over the horizon hybrid sky-surface wave radar’, J. Electron. Inf. Technol., 2011, 33, (8), pp. 1786–1791 (doi: 10.3724/SP.J.1146.2010.01339).
-
13)
-
H.D. Griffiths ,
N.R.W. Long
.
Television-based bistatic radar.
IEE Proc. Radar Sonar Navig.
,
7 ,
649 -
657
-
14)
-
4. Riddolls, R.J.: ‘Ship detection performance of a high frequency hybrid sky-surface wave radar’. Defense R&D, Canada-Ottawa, 2007.
-
15)
-
17. Trizna, D.: ‘Results of a bistatic HF radar surface wave sea scatter experiment’. 2002 IEEE IGRSSP, 24–28 June 2002, vol. 3, pp. 1902–1904.
-
16)
-
13. Barker, D.C.: ‘Range estimation for SSL HFDF system by means of a multiquasiparabolic ionosphere model’, IEE Proc., 1989, 36, (2), pp. 120–125.
-
17)
-
11. Baker, D.C.: ‘Multisegmented parabolic model for ionospheric electron density distribution’, IEE Conf. Publ., 1991, 392, pp. 183–188.
-
18)
-
9. Zhixin, Z.: ‘An experimental study of HF passive bistatic radar via hybrid sky-surface wave mode’, IEEE Trans. Antennas Propag., 2012, 61, (1), pp. 415–424.
-
19)
-
1. Melyanovski, P.A.: ‘Bistatic HF radar for oceanography applications with the use of both ground and space waves’, Telecommun. Radio Eng., 1997, 51, (2–3), pp. 73–79.
-
20)
-
10. Milsom, J.D.: ‘Exact ray path calculations in a modified Bradley/Dudeney model ionosphere’, IEE Proc., 1985, 132, (1), pp. 33–38.
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