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| 基于变换的线性约束降秩自适应波束形成算法 | |
| 引用本文： | 丁前军,王永良,张永顺.基于变换的线性约束降秩自适应波束形成算法[J].系统工程与电子技术,2005,27(12):2010-2013. |
| 作者姓名： | 丁前军 王永良 张永顺 |
| 作者单位： | 1. 空军工程大学导弹学院,陕西,三原,713800;空军雷达学院雷达兵器运用工程全军重点实验室,湖北,武汉,430019 2. 空军雷达学院雷达兵器运用工程全军重点实验室,湖北,武汉,430019 3. 空军工程大学导弹学院,陕西,三原,713800 |
| 基金项目： | 国家自然科学基金(60272086)，全国高等学校优秀青年教师教学科研奖励计划(TRAPOYT)资助课题 |
| 摘 要： | 在分析直接形式的线性约束降秩自适应波束形成算法存在缺陷的基础上,提出了基于变换的线性约束降秩自适应波束形成算法,解决了直接形式的线性约束降秩自适应波束形成算法在特定干扰角度上数值稳定性下降和约束零点损失问题。提出了线性约束正交投影算法,基于变换的线性约束正交投影算法可得到和其它降秩方法相同的性能,但降低了计算复杂度。通过计算机仿真验证了算法的有效性。 |
| 关 键 词： | 自适应波束形成 线性约束 降秩处理 正交投影 |
| 文章编号： | 1001-506X(2005)12-2010-04 |
| 修稿时间： | 2004年10月22 |
Transformation-based linearly constrained reduced-rank adaptive beamforming algorithms |
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| DING Qian-jun,WANG Yong-liang,ZHANG Yong-shun.Transformation-based linearly constrained reduced-rank adaptive beamforming algorithms[J].System Engineering and Electronics,2005,27(12):2010-2013. | |
| Authors: | DING Qian-jun WANG Yong-liang ZHANG Yong-shun |
| Institution: | DING Qian-jun 1,2,WANG Yong-liang2,ZHANG Yong-shun1 |
| Abstract: | Based on the analysis of the disadvantages of the direct-form linearly constrained reduced-rank adaptive beamforming algorithms, the transformation-based linearly constrained reduced-rank adaptive beamforming techniques are proposed. The techniques outperform the direct-form linearly constrained reduced-rank processing methods in keeping numerical stability and preserving linear constraints. In addition, the linearly constrained orthogonal projection is proposed as a new reduced-rank method in the linear constraint condition, and the transformation-based version of it can achieve almost the same performance as other methods, with lower computational complexity. The effectiveness of the proposed algorithms are proved by the simulation results. |
| Keywords: | adaptive beamforming linear constraints reduced-rank processing orthogonal projection |
| 本文献已被 CNKI 万方数据 等数据库收录！ | |