基于空时降维处理的高动态零陷加宽算法

卢丹; 葛璐; 王文益; 王璐; 贾琼琼; 吴仁彪

doi:10.11999/JEIT150553

基于空时降维处理的高动态零陷加宽算法

doi: 10.11999/JEIT150553

基金项目:

国家自然科学基金(61172112, 61271404, 61471363)，中央高校基本科研业务费(3122014D003)

计量
- 文章访问数: 1300
- HTML全文浏览量: 91
- PDF下载量: 556
- 被引次数: 0
出版历程
- 收稿日期: 2015-05-11
- 修回日期: 2015-09-11
- 刊出日期: 2016-01-19

A High-dynamic Null-widen Algorithm Based on Reduced-dimension Space-time Adaptive Processing

Funds:

The National Natural Science Foundation of China (61172112, 61271404, 61471363), The Fundamental Research Funds for the Central Universities (3122014D003)

摘要

摘要: 空时自适应处理是卫星导航抗干扰的有效方法。但在高动态环境下，干扰来向动态变化，干扰很容易移出常规自适应抗干扰算法所形成的窄零陷，导致算法失效。常用的解决办法是加宽零陷。该文从干扰来向变化的统计模型出发，提出一种基于拉普拉斯分布的空时加宽零陷算法，该算法能在干扰方向形成较宽的零陷。并且考虑到空时处理将增加算法的计算复杂度，该文将新的空时加宽零陷算法与多级维纳滤波器相结合，给出一种基于空时降维处理的加宽零陷算法。新算法能有效降低算法复杂度，并能在小快拍下得到更好的性能。仿真结果表明新算法的有效性。
- 全球卫星导航系统 /
- 高动态 /
- 空时自适应处理 /
- 降维处理
Abstract: Space-Time Adaptive Processing (STAP) is effective to suppress wideband jammers in satellite navigation system. But in high-dynamic environment, the conventional STAP anti-jamming algorithms are invalid since jammers may easily move out of the array pattern null so that it can not be suppressed. In this paper, a new method of STAP null-widen is deduced based on Laplace distribution model of the changing interference DOA in high-dynamic environment. This method can broaden the width of nulls. But because of using of STAP, the amount of computation is increased significantly, a STAP null-widen method based on reduced-dimension Multistage Wiener Filters (MWF) is given in this paper. The effectiveness of the new method is proved in simulation part.
- Global Navigation Satellite System (GNSS) /
- High-dynamic /
- Space-Time Adaptive Processing (STAP) /
- Reduced-dimension processing

HTML全文

参考文献(21)

SKLAR J R. Interference mitigation approaches for the global positioning system[J]. Lincoln Laboratory Journal, 2003, 14(2): 167-179.

KIM T H, SIN C S, and LEE S. Analysis of performance of GPS L1 signal generator in GPS L1 signal[C]. 2014 14th International Conference on Control, Automation and Systems (ICCAS), Seoul, Korea, 2014: 1006-1009.

毛虎, 吴德伟, 卢虎, 等. 对GPS接收机的一种新宽带压制干扰样式分析[J]. 电子与信息学报, 2014, 36(12): 2929-2934. doi: 10.3724/SP.J.1146.2014.00123.

MO Hu, WU Dewei, LU Hu, et al. Analysis of a new wideband blanket jamming type to GPS receiver[J]. Journal of Electronics Information Technology, 2014, 36(12): 2929-2934. doi : 10.3724/SP.J.1146.2014.00123.

王文益, 杜清荣, 吴仁彪. 一种利用少快拍数据的卫星导航高动态干扰抑制算法[J]. 电子与信息学报, 2014, 36(10): 2445-2449. doi: 10. 3724/SP.J.1146.2013.01719.

WANG Wenyi, DU Qingrong, and WU Renbiao. High dynamic interference suppression based on few snapshots for satellite navigation system[J]. Journal of Electronics Information Technology, 2014, 36(10): 2445-2449. doi:10. 3724/SP.J.1146.2013.01719.

BOURS A, CETIN E, and DEMPSTER A G. Enhanced GPS interference detection and localization[J]. Electronics Letters, 2014, 50(19): 1391-1393.

张柏华, 马红光, 孙新利, 等. 基于正交约束的导航接收机空时自适应方法[J]. 电子与信息学报, 2015, 37(4): 900-906. doi: 10.11999/JEIT140740.

ZHANG Baihua, MA Hongguang, SUN Xinli, et al. Space time adaptive processing technique based on orthogonal constraint in navigation receiver[J]. Journal of Electronics Information Technology, 2015, 37(4): 900-906. doi: 10.11999/ JEIT140740.

ZATMAN M. Production of adaptive array troughs by dispersion synthesis[J]. Electroncs Letters, 1995, 31(25): 2141-2142.

MAILLOUX R J. Covariance matrix augmentation to produce adaptive array pattern troughs[J]. Electroncs Letters, 1995, 31(10): 771-772.

李荣峰, 王永良, 万山虎. 自适应天线方向图干扰零陷加宽方法研究[J]. 现代雷达, 2003, 25(2): 42-45.

LI Rongfeng, WANG Yongliang, and WAN Shanhu. Research on adapted pattern null widening techniques[J]. Modern Radar, 2003, 25(2): 42-45.

武思军, 张锦中, 张曙. 存在指向误差时的稳健自适应波束形成算法[J]. 哈尔滨工程大学学报, 2005, 26(4): 531-535.

WU Sijun, ZHANG Jingzhong, and ZHANG Shu. Robust adaptive beamforming against pointing error[J]. Journal of Harbin Engineering University, 2005, 26(4): 531-535.

MA Yanxin, LU Dan, WANG Wenyi, et al. A high-dynamic null-widen GPS anti-jamming algorithm based on statistical model of the changing interference DOA[C]. Proceedings of 2014 China Satellite Navigation Conference, Nanjing, China, 2014: 695-702.

丁前军, 王永良, 张永顺. 自适应阵列中多级维纳滤波器的有效实现方法[J]. 电子与信息学报, 2006, 28(5): 936-940.

DING qianjun, WANG Yongliang, and ZHANG Yongshun. Efficient algorithms of implementing multistage wiener filter in adaptive array[J]. Journal of Electronics Information Technology, 2006, 28(5): 936-940.

RICK D C and GOLDSTEIN J S. Efficient architectures for implementing adaptive algorithms[C]. Proceedings of the 2000 Antenna Application Symposium, Monticello, USA, 2000: 29-41.

COMPTON R T Jr. The power-inversion adaptive array: concept and performance[J]. IEEE Transactions on Aerospace and Electronic Systems, 1979, 15(6): 803-814.

HINEDI S and STATMAN J I. High-dynamic GPS tracking final report[R], JPL, 1988.

施引文献

资源附件(0)

访问统计