| 子带自适应阵列处理的实现与性能分析 |
| |
| 引用本文： | 郭文飞,郑建生,张提升,李超然.子带自适应阵列处理的实现与性能分析[J].宇航学报,2011(10). |
| |
| 作者姓名： | 郭文飞 郑建生 张提升 李超然 |
| |
| 作者单位： | 武汉大学电子信息学院; |
| |
| 基金项目： | 国家自然科学基金资助项目(61004123); 广西自然科学基金资助项目(2011GXNSFA018155); 中央高校基本科研业务费专项资金资助(20102120101000120,20106180201000159) |
| |
| 摘 要： | 针对空频自适应滤波处理中节拍样点两端的输出信干噪比急剧下降的问题,建立了子带自适应阵列处理与空时自适应阵列处理等效关系的数学模型,指出了变换正交基函数的影响,提出利用时频分析特性优良的小波包变换取代傅立叶变换形成新的子带自适应阵列处理,减少子带间的频谱混叠,从而提高系统节拍样点两端的输出信干噪比。对基于不同窗函数的空频自适应处理和基于小波包变换的子带自适应处理进行了性能仿真,验证了小波包相对于加窗空频自适应处理的优越性。
|
| 关 键 词： | 射频干扰 空频自适应处理 小波包变换 信干噪比 |
Implementation and Performance Analysis of Sub-Band Adaptive Antenna Array Processing |
| |
| GUO Wen-fei,ZHENG Jian-sheng,ZHANG Ti-sheng,LI Chao-ran.Implementation and Performance Analysis of Sub-Band Adaptive Antenna Array Processing[J].Journal of Astronautics,2011(10). |
| |
| Authors: | GUO Wen-fei ZHENG Jian-sheng ZHANG Ti-sheng LI Chao-ran |
| |
| Institution: | GUO Wen-fei,ZHENG Jian-sheng,ZHANG Ti-sheng,LI Chao-ran (School of Electronic Information,WuHan University,WuHan 430079,China) |
| |
| Abstract: | The output SINR(Signal to Interference Plus Noise Ratio) declines dramatically at the two ends of the snap samples in the narrowband SFAP(Space Frequency Adaptive Processing).In order to solve this problem,a mathematical model is founded and analyzed,which presents the relationship between sub-band adaptive array processing and STAP(Space Time Adaptive Processing),and it points out that the performance of the sample SINR is affected by the orthonormal basis.A new sub-band adaptive array processing is propos... |
| |
| Keywords: | Radio frequency interference Space frequency adaptive processing(SFAP) Wavelet packet transform(WPT) Signal to interference plus noise ratio |
| 本文献已被 CNKI 等数据库收录！ |
|
