| 改进的卫星导航接收机抗干扰算法 |
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| 引用本文： | 翟永刚,吕明.改进的卫星导航接收机抗干扰算法[J].航空电子技术,2009,40(4). |
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| 作者姓名： | 翟永刚 吕明 |
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| 作者单位： | 电子科技大学电子工程学院,成都,610054 |
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| 摘 要： | 在分析多级维纳滤波器实现算法的基础上,通过对相关相减算法中的阻塞矩阵进行改进,并利用其前向递推多级分解特性构造出空-时二维干扰子空间,然后结合子空间投影方法,进一步求出空-时抗干扰最优权值。与传统的相关相减结构多级维纳滤波方法(CSS-MSWF)相比,该方法在有限数据精度下,抗干扰性能要优于CSS-MSWF方法,具有更好的可行性和实用性。仿真结果验证了该方法的有效
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| 关 键 词： | 多级维纳滤波 阻塞矩阵 子空间投影 空-时处理 |
Improved Anti-Jamming Techniques for Navigation Receivers |
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| ZHAI Yong-gang,LV Ming.Improved Anti-Jamming Techniques for Navigation Receivers[J].Avionics Technology,2009,40(4). |
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| Authors: | ZHAI Yong-gang LV Ming |
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| Institution: | ZHAI Yong-gang; LV Ming (Institute of Electronic Engineering; University of Electronic Science and Technology; Chengdu 610054; China); |
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| Abstract: | Followed by analysis of the algorithms implementing Multistage Wiener Filter(MSWF),we find that the blocking operations,when practically implemented,with limited-precision,in its Correlation Subtraction Structure, does not results in the projection subspace,theoretically orthogonal to the cross-correlation vector.We then accordingly modify the blocking matrix making use of the multistage decomposition structure of the MSWF,based on the correlation subtractive structure,to construct the space-time interferen... |
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| Keywords: | multistage Wiener filtering blocking matrix subspace projection space-time processing |
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