| 改进的辅助变换相干干扰抑制波束形成技术 |
| |
| 引用本文： | 汪扬,赵知劲.改进的辅助变换相干干扰抑制波束形成技术[J].电子技术应用,2012,38(10). |
| |
| 作者姓名： | 汪扬 赵知劲 |
| |
| 作者单位： | 1. 杭州电子科技大学通信工程学院,浙江杭州,310018
2. 杭州电子科技大学通信工程学院,浙江杭州310018;中国电子科技集团第36研究所通信系统信息控制技术国家级重点实验室,浙江嘉兴314001 |
| |
| 摘 要： | 提出一种相干干扰下自适应波束形成方法。该方法同时约束非相干干扰与相干干扰,更好地实现对此两类干扰方向的自适应零陷滤波。采用变换预处理,避免抑制期望信号;恢复噪声特性并采用对角加载技术,增强算法稳健性;采用拉格朗日乘子法得到最优波束形成算法。理论分析与仿真结果表明,保持阵列孔径不变时,该算法提高了输出信干噪比和稳健性。
|
| 关 键 词： | 自适应波束形成 相干干扰 辅助变换 空间平滑 稳健性 |
An improved complementally transformed adaptive beamformer for coherent interference suppression |
| |
| Wang Yang
,
Zhao Zhijin.An improved complementally transformed adaptive beamformer for coherent interference suppression[J].Application of Electronic Technique,2012,38(10). |
| |
| Authors: | Wang Yang Zhao Zhijin |
| |
| Abstract: | A method of adaptive beamforming in the presence of coherent interference is proposed.Meanwhile restraining noncoherent interference and coherent interference,nulls of these types of interference directions are formed.Using transform preprocessing,suppression of the desired signals is avoided.Recovering characteristics of the noise and using diagonal loading techniques,the robustness of algorithm is improved.And then applying Lagrange multiplier,the optimal beamforming algorithm is presented.Simulation results show that output signal-to-interference-plus-noise(SINR) and robustness are increased when keeping the array aperture invariable. |
| |
| Keywords: | adaptive beamforming coherent interference complementally transformed spatial smoothing robustness |
| 本文献已被 万方数据 等数据库收录！ |
|
