不同环境下海杂波特征仿真与试验研究

doi:10.3969/j.issn.1000-1093.2013.08.013

兵工学报 ›› 2013, Vol. 34 ›› Issue (8): 1000-1006.doi: 10.3969/j.issn.1000-1093.2013.08.013

不同环境下海杂波特征仿真与试验研究

赵亚明, 李就, 孟雷, 赵越超

61741 部队, 北京100094

收稿日期:2011-12-01 修回日期:2011-12-01 上线日期:2013-10-14
作者简介:赵亚明(1980—), 男, 工程师。
基金资助:
国家高技术研究发展计划项目(2002AA639300)

Simulation and Test Research of Sea Clutter Characteristics in Different Environments

ZHAO Ya-ming, LI Jiu, MENG Lei, ZHAO Yue-chao

Unit 61741 of PLA, Beijing 100094, China

Received:2011-12-01 Revised:2011-12-01 Online:2013-10-14

摘要/Abstract

摘要：

海杂波是影响雷达目标检测的主要因素,而海洋大气环境又通过影响电磁波传播路径而改变海杂波特征。分析了不同海洋大气环境下海杂波特征差异的成因,综合海面反射率经验模型,建立了基于“对等距离冶法的海杂波特征量计算方法,并对文献[9] 试验中1998 年4 月2 日观测的海杂波数据进行了仿真,经过4 个方向对比表明,仿真值与实测平均值比较吻合。结合模拟的不同环境条件和雷达参数,对标准大气、蒸发波导及表面波导等环境下的海杂波特征进行了仿真,结果表明:相比于标准大气环境,波导环境下海杂波功率特征呈现增强的趋势,而且在表面波导环境下的第一跳跃盲区内还会呈现弱杂波或无杂波特征。

关键词: 雷达工程, 不同环境, 海杂波特征, 对等距离

Abstract:

Sea clutter is the main factor affecting the radar target detection, but the marine atmospheric environment changes the sea clutter characteristics by influencing the electromagnetic wave propagation path. The cause of sea clutter characteristic difference is analyzed in the different atmospheric environments, and the empirical model is used to establish an algorithm of sea clutter characteristic quantity based on the "opposite distance" method. The real sea clutter characteristics are simulated with the experiment data in Ref. [9]. It is found from the comparison of the datum observed in four directions that the simulation value is agreement with the measured average value. Finally, the sea clutter characteristics in standard atmosphere, evaporation duct and surface duct environment are investigated by using the simulative environment conditions and radar parameters. And the results show that, compared with the standard atmosphere environment, the sea clutter characteristics show a trend of increase in the duct environment, and the first skip zone in the surface duct environment also presents weak clutter or no clutter.

Key words: radar engineering, marine atmospheric environment, sea clutter characteristic, opposite distance method

中图分类号:

TN011

赵亚明, 李就, 孟雷, 赵越超. 不同环境下海杂波特征仿真与试验研究[J]. 兵工学报, 2013, 34(8): 1000-1006.

ZHAO Ya-ming, LI Jiu, MENG Lei, ZHAO Yue-chao. Simulation and Test Research of Sea Clutter Characteristics in Different Environments[J]. Acta Armamentarii, 2013, 34(8): 1000-1006.

参考文献

[1] Paulus R A. Evaporation duct effects on sea clutter [J]. IEEE Transaction on AP, 1990, 38(11): 1765 -1771. [2] Synder F P. A radar sea clutter model for atmospheric ducting conditions,A123541[R]. San Diego:NOSC, 1984:2 -15. [3] Synder F P. Radar clutter under atmospheric ducting conditions,AD-A145 321/6 [R]. San Diego:NOSC,1979:1 -12. [4] Dockery G D. Method for modeling sea surface clutter in complicated propagation environments[J]. Radar and Signal Processing,IEE Proceedings F, 1990, 137(2):73 -79. [5] Reilly J P, Dockery G D. Influence of evaporation ducts on radar sea return [J]. Radar and Signal Processing, IEE Proceedings F,1990, 137(2):80 -88. [6] Pappert R A, Paulus R A. Sea echo in troposphere ducting environments [J]. Radio Science,1992, 27(2):189 -209. [7] 盛峥,陈加清. 利用粒子滤波从雷达回波实时跟踪反演大气波导[J]. 物理学报,2012,61(6):069301. SHENG Zheng, CHEN Jia-qing. Tracking refractivity from radar clutter using particle filter[ J]. Acta Physica Sinica, 2012,61(6):069301. (in Chinese) [8] 赵小龙,黄际英. 蒸发波导环境中基于ZMNL 的海杂波仿真[J]. 系统工程与电子技术, 2008,(3):813 -815. ZHAO Xiao-long, HUANG Ji-ying. Sea clutter simulation based on ZMNL in evaporation duct environment [J]. Systems Engineering and Electronics, 2008,(3):813 -815. (in Chinese) [9] Sner F L. Experimental observations at very low grazing angles of high range resolution microwave backscatter from the sea,NRL/MR/5310-98-8326 [R]. Washington :Naval Research. Laboratory, 1998:1 -56. [10] Horst M M,Dyer F B,Tuley M T. Radar sea clutter model[C]//International Conference on Antennas and Propagation. London,Institution of Electrical Engineers,1978:6 -10. [11] 赵亚明,张永刚. 基于改进大气衰减算法的地形抛物模式及试验研究[J]. 微波学报,2011,27(4):37 -41. ZHAO Ya-ming, ZHANG Yong-gang. The research and experiment on propagation model of electromagnetic wave based on the modified atmosphere attenuation mode [ J]. Journal of Microwaves, 211,27(4):37 -41. (in Chinese)

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不同环境下海杂波特征仿真与试验研究

Simulation and Test Research of Sea Clutter Characteristics in Different Environments

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