A Dual Polyphase Decomposition Overlapped Polyphase Filter Bank and Its Implementation in a Field-programmable Gate Array
文献类型：期刊论文
| 作者 | Guo, Shaocong4; Meng, Qiao4; Zhang, Hailong1,2,3; Zhang, Yazhou3; Zhou, Chenye4; Li, Gaojing4; Wu, Jie4; Shao, Jianxun4 |
| 刊名 | ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES
 |
| 出版日期 | 2025-08-01 |
| 卷号 | 279期号:2页码:42 |
| ISSN号 | 0067-0049 |
| DOI | 10.3847/1538-4365/ade236 |
| 产权排序 | 2 |
| 英文摘要 | Real-time processing of ultra-wideband signals requires dividing them into several subbands by using a channelizer filter such as a polyphase filter bank. Original channelizers, like the critically sampling polyphase filter bank (CSPFB), face issues such as subband edge attenuation and spectral aliasing. An overlapped polyphase filter bank (OPFB) addresses these challenges, but in existing OPFB structures, the overlap factor is typically an integer, and the output data rate is usually at least twice that of a CSPFB. In practice, some OPFBs could have an overlap factor of less than 2, but their implementation structures are more complex. In this context, this paper proposes a novel OPFB structure based on dual polyphase decomposition (DPD-OPFB). It can be implemented in FPGAs by using existing IP cores, such as the SMAC finite impulse response filters. This makes it more suitable for FPGA implementation in high-speed broadband signal processing compared to original OPFB structures, especially when the overlap factor is not an integer. The algorithm has been implemented using an FPGA and validated through pulsar astronomical observation experiments. Experimental results demonstrate that the DPD-OPFB effectively mitigates issues in original channelizers, thereby preserving the original data more comprehensively. It significantly simplifies the FPGA implementation of the OPFB with wideband output subbands. |
| 资助项目 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166[2021YFC2203502] ; MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166[2022YFF0711502] ; National Key Research and Development Program of China[12173077] ; National Natural Science Foundation of China (NSFC)[PTYQ2022YZZD01] ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; China National Astronomical Data Center (NADC) |
| WOS研究方向 | Astronomy & Astrophysics |
| 语种 | 英语 |
| WOS记录号 | WOS:001535006300001 |
| 出版者 | IOP Publishing Ltd |
| 资助机构 | MOST divided by National Key Research and Development Program of China (NKPs)https://doi.org/10.13039/501100012166 ; National Key Research and Development Program of China ; National Natural Science Foundation of China (NSFC) ; Scientific Instrument Developing Project of the Chinese Academy of Sciences ; China National Astronomical Data Center (NADC) |
| 源URL | [http://ir.xao.ac.cn/handle/45760611-7/7999]  |
| 专题 | 新疆天文台_计算机技术室 |
| 通讯作者 | Guo, Shaocong; Meng, Qiao |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Radio Astron, Nanjing 210008, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Xinjiang Astron Observ, Urumqi 830011, Peoples R China 4.Southeast Univ, Nanjing 211189, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Shaocong,Meng, Qiao,Zhang, Hailong,et al. A Dual Polyphase Decomposition Overlapped Polyphase Filter Bank and Its Implementation in a Field-programmable Gate Array[J]. ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,2025,279(2):42. |
| APA | Guo, Shaocong.,Meng, Qiao.,Zhang, Hailong.,Zhang, Yazhou.,Zhou, Chenye.,...&Shao, Jianxun.(2025).A Dual Polyphase Decomposition Overlapped Polyphase Filter Bank and Its Implementation in a Field-programmable Gate Array.ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES,279(2),42. |
| MLA | Guo, Shaocong,et al."A Dual Polyphase Decomposition Overlapped Polyphase Filter Bank and Its Implementation in a Field-programmable Gate Array".ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES 279.2(2025):42. |
入库方式： OAI收割
来源：新疆天文台
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