| An anti-image interference quadrature IF architecture for satellite receivers | |
| He Weidong; Lu Xiaochun; He Chengyan; Torley, James | |
| 2014 | |
| 发表期刊 | CHINESE JOURNAL OF AERONAUTICS
 |
| ISSN | 1000-9361 |
| 卷号 | 27期号:4页码:955-963 |
| 摘要 | Since Global Navigation Satellite System (GNSS) signals span a wide range of frequency, wireless signals coming from other communication systems may be aliased and appear as image interference. In quadrature intermediate frequency (IF) receivers, image aliasing due to in-phase and quadrature (I/Q) channel mismatches is always a big problem. I/Q mismatches occur because of gain and phase imbalances between quadrature mixers and capacitor mismatches in analog-to-digital converters (ADC). As a result, the dynamic range and performance of a receiver are severely degraded. In this paper, several popular receiver architectures are summarized and the image aliasing problem is investigated in detail. Based on this analysis, a low-IF architecture is proposed for a single-chip solution and a novel and feasible anti-image algorithm is investigated. With this anti-image digital processing, the image reject ratio (IRR) can reach approximately above 50 dB, which relaxes image rejection specific in front-end circuit designs and allows cheap and highly flexible analog front-end solutions. Simulation and experimental data show that the anti-image algorithm can work effectively, robustly, and steadily. (C) 2014 Production and hosting by Elsevier Ltd. on behalf of CSAA & BUAA. |
| 部门归属 | 导航与通信研究室 |
| 收录类别 | SCI |
| 语种 | 英语 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://210.72.145.45/handle/361003/7367 |
| 专题 | 导航与通信研究室 |
| 推荐引用方式 GB/T 7714 | He Weidong,Lu Xiaochun,He Chengyan,et al. An anti-image interference quadrature IF architecture for satellite receivers[J]. CHINESE JOURNAL OF AERONAUTICS,2014,27(4):955-963. |
| APA | He Weidong,Lu Xiaochun,He Chengyan,&Torley, James.(2014).An anti-image interference quadrature IF architecture for satellite receivers.CHINESE JOURNAL OF AERONAUTICS,27(4),955-963. |
| MLA | He Weidong,et al."An anti-image interference quadrature IF architecture for satellite receivers".CHINESE JOURNAL OF AERONAUTICS 27.4(2014):955-963. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| An anti-image interf（1119KB） | 限制开放 | CC BY-NC-SA | 请求全文 | |||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论