干扰背景下基于双圆阵的全向测角方法

田超; 文树梁

doi:10.11999/JEIT141375

干扰背景下基于双圆阵的全向测角方法

doi: 10.11999/JEIT141375

田超¹,
文树梁¹

计量
- 文章访问数: 1119
- HTML全文浏览量: 80
- PDF下载量: 552
- 被引次数: 0
出版历程
- 收稿日期: 2014-10-29
- 修回日期: 2015-02-06
- 刊出日期: 2015-07-19

Omni-directional Angle Measurement Algorithm under Interference with Double Circular Arrays

Tian Chao¹,
Wen Shu-liang¹

摘要

摘要: 当干扰与目标方位夹角较小时，基于单圆阵的方位全向米波雷达在进行干扰对消时，目标回波的对消损失较大，从而降低了干扰对消后的目标检测概率和目标方位估计精度。针对此问题，该文提出一种基于双圆阵的干扰对消和目标方位角估计算法。该算法先利用小圆阵激励出的-1, 0和1阶相位模式初步估计干扰的方位角，后利用大圆阵激励出对称高阶相位模式获得精确的干扰方位角并利用其激励出的非对称高阶相位模式进行干扰对消和目标方位角的估计。该算法相对于单圆阵的干扰对消和测角方法可以减小目标回波的对消损失，提高干扰对消后的信噪比，从而增大目标检测概率和提高目标方位角的估计精度，仿真结果证明了该算法的有效性。
- 雷达 /
- 双圆阵 /
- 干扰对消 /
- 全向测角 /
- 角度模糊
Abstract: If the azimuth angle between the interference and the detected target is small, the energy of the received signal reflected by the target may have a great loss when the interference is cancelled for an omni-directional VHF radar with single circular array. To resolve this problem, an improved algorithm based on double circular arrays is proposed. The algorithm firstly utilizes the excited phase mode -1, 0 and 1 of the small array to estimate a rough azimuth angle of the interference, and then acquires an accurate one by symmetrical phase modes of high orders of the large array. Finally, interference cancellation and estimation of targets azimuth angle are fulfilled via unsymmetrical phase modes of the large array. Compared with the algorithm based on single array, the proposed algorithm can reduce the energy loss of the useful signal and increase the estimation precision of targets azimuth angle. Simulation results demonstrate the effectiveness of the proposed algorithm.
- Radar /
- Double circular arrays /
- Interference cancellation /
- Omni-directional angle measurement /
- Angle ambiguity

HTML全文

参考文献(22)

田超, 文树梁. 米波圆阵雷达全向测角算法及其性能分析[J]. 系统工程与电子技术, 2013, 35(12): 2507-2512.

Tian Chao and Wen Shu-liang. Omni-directional angle measurement algorithm of meter-wave circular array radar and its performance analysis[J]. Systems Engineering and Electronics, 2013, 35(12): 2507-2512.

Zeng Guo-qi, Li Si-yin, Zhang Yan, et al.. Low side lobe pattern synthesis using projection method with genetic algorithm for truncated cone conformal phased arrays[J]. Journal of Systems Engineering and Electronics, 2014, 25(4): 554-559.

吉波, 张科, 刘晓婧, 等. 基于自适应旁瓣相消的干扰源方位估计方法[J]. 系统工程与电子技术, 2014, 36(10): 1913-1917.

Ji Bo, Zhang Ke, Liu Xiao-jing, et al.. DOA estimation method for jamming based on adaptive sidelobe canceller[J]. Systems Engineering and Electronics, 2014, 36(10): 1913-1917.

Li Rong-feng, Rao Can, Dai Ling-yin, et al.. Combining sum-difference and auxiliary beams for adaptive monopulse in jamming[J]. Journal of Systems Engineering and Electronics, 2013, 24(3): 372-381.

Higgins T and Webster T. Mitigating interference via spatial and spectral nulling[J]. IET Radar, Sonar Navigation, 2014, 8(2): 84-93.

Su Hong-tao, Liu Hong-wei, Shui Peng-lang, et al.. Adaptive beamforming for nonstationary HF interference cancellation in skywave over-the-horizon radar[J]. IEEE Transactions on Aerospace and Electronic Systems, 2013, 49(1): 312-324.

Tan D K P, Lesturgie M, Sun Hong-bo, et al.. Space-time interference analysis and suppression for airborne passive radar using transmissions of opportunity[J]. IET Radar, Sonar Navigation, 2014, 8(2): 142-152.

王强, 张永顺, 司文涛. 基于阻塞预处理的多基地雷达抗主瓣干扰算法[J]. 电子与信息学报, 2014, 36(3): 734-738.

Wang Qiang, Zhang Yong-shun, and Si Wen-tao. Main-lobe jamming suppression algorithm for multistatic radar based on block preconditioning[J]. Journal of Electronics Information Technology, 2014, 36(3): 734-738.

苏保伟, 王永良, 李荣锋, 等. 阻塞矩阵方法对消主瓣干扰[J]. 系统工程与电子技术, 2005, 27(11): 1830-1832.

Su Bao-wei, Wang Yong-liang, Li Rong-feng, et al.. Mainlobe interference cancelling method via block matrix[J]. Systems Engineering and Electronics, 2005, 27(11): 1830-1832.

王建明, 伍光新, 周伟光. 盲源分离在雷达抗主瓣干扰中的应用研究[J]. 现代雷达, 2010, 32(10): 46-49.

Wang Jian-ming, Wu Guang-xin, and Zhou Wei-guang. A study on radar mainlobe jamming suppression based on blind source separation algorithm [J]. Modern Radar, 2010, 32(10): 46-49.

Bai Zhi-mao, Huang Gao-ming, and Yang Lu-xi. A radar anti-jamming technology based on canonical correlation analysis[C]. Proceedings of International Conference on Neural Networks and Brain, Beijing, China, 2005(1): 9-12.

Du Dong-ping and Tang-bin. Noise FM jamming suppression via logarithm transform[C]. Proceedings of International Conference on Communications, Circuits and Systems, Fujian, China, 2008: 957-959.

Gherardelli M. Adaptive polarization suppression of intentional radar disturbance[J]. IEE Proceedings F: Radar and Signal Processing, 1990, 137(6): 407-417.

Dai Huan-yao, Wang Xue-song, Li Yong-zhen, et al.. Main-lobe jamming suppression method of using spatial polarization characteristics of antennas[J]. IEEE Transactions on Aerospace and Electronic Systems, 2012, 48(3): 2167-2179.

Nathanson F E. Adaptive circular polarization[C]. Proceedings of IEEE International Radar Conference, Arlington, USA, 1975: 221-225.

施龙飞, 王雪松, 肖顺平. 干扰背景下雷达最佳极化的分步估计方法[J]. 自然科学进展, 2005, 15(11): 1324-1329.

Shi Long-fei, Wang Xue-song, and Xiao Shun-ping. A stepwise estimation method of optimal polarization of radar with interference[J]. Progress in Natural Science, 2005, 15(11): 1324-1329.

施引文献

资源附件(0)

访问统计