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| 基于临界采样多相滤波器组的宽带信号信道化 | |
| Alternative Title | Channelization of wideband signal based on critical sampling polyphase filter banks |
张海龙1,2,3,4 ; 张萌1,2; 张亚州1,2; 王杰1,4; 冶鑫晨1,4; 王万琼1; 李嘉1; 杜旭1,2; 张婷1,2
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| 2023-08-01 | |
| Source Publication | 吉林大学学报(工学版)
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| ISSN | 1671-5497 |
| Volume | 53Issue:8Pages:2388-2394 |
| Contribution Rank | 1 |
| Abstract | 针对通信及射电天文领域宽带信号子带划分过程中遇到的频谱泄露及子带混叠等问题。仿真分析了Hanning窗、Hamming窗与Kaiser窗等不同窗函数对有限冲激响应(FIR， Finite Impulse Response)数字滤波器性能的影响。基于Hamming窗FIR数字滤波器设计实现了临界采样多相滤波器组，研究了临界采样多相滤波器组的频谱特性。利用仿真信号及天文观测基带数据分别实现了宽带信号的子带划分，分析了临界采样多相滤波器组与传统FIR数字滤波器组的滤波性能特征。利用临界采样多相滤波器组实现了宽带基带数据的多通道输出，并对子信道内频谱信息进行了分析和修正，得到了与原始信号相对应的子通道频谱。 |
| Other Abstract | In view of spectral leakage and aliasing in the wideband signal channelization in the field of communication and radio astronomy. The effects of different window functions such as Hanning windows, Hamming windows and Kaiser windows on the performance of the finite impulse response(FIR)digital filter were simulated and analyzed. Based on the Hamming window FIR digital filter designed and implemented the critical sampling polyphase filter banks, and the spectral characteristics of the critical sampling polyphase filter banks were studied. The sub-bands division of wideband signals were realized by using the astronomical observation baseband data, and the filtering performance characteristics of the critical sampling polyphase filter banks and FIR digital filter banks were analyzed. Employed the critical sampling polyphase filter banks realized the multichannel output of wideband baseband data, and the frequency spectrum of the sub-channels was analyzed and corrected, which correspond to the original signal. |
| Keyword | 天文信息技术 多相滤波器组 FIR滤波器 数字滤波器组 信道划分 |
| DOI | 10.13229/j.cnki.jdxbgxb20200274 |
| URL | 查看原文 |
| Indexed By | EI ; CSCD ; 中文核心期刊要目总览 |
| Language | 中文 |
| CSCD ID | CSCD:7561126 |
| Citation statistics |
Cited Times:1[CSCD]
[CSCD Record]
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| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/6638 |
| Collection | 计算机技术应用研究室 110米口径全可动射电望远镜（QTT）_技术成果 |
| Corresponding Author | 张海龙 |
| Affiliation | 1.中国科学院新疆天文台; 2.中国科学院大学;中国科学院射电天文重点实验室; 3.国家天文科学数据中心; 4.西华师范大学物理与天文学院 |
| First Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Corresponding Author Affilication | Xinjiang Astronomical Observatory, Chinese Academy of Sciences |
| Recommended Citation GB/T 7714 | 张海龙,张萌,张亚州,等. 基于临界采样多相滤波器组的宽带信号信道化[J]. 吉林大学学报(工学版),2023,53(8):2388-2394. |
| APA | 张海龙.,张萌.,张亚州.,王杰.,冶鑫晨.,...&张婷.(2023).基于临界采样多相滤波器组的宽带信号信道化.吉林大学学报(工学版),53(8),2388-2394. |
| MLA | 张海龙,et al."基于临界采样多相滤波器组的宽带信号信道化".吉林大学学报(工学版) 53.8(2023):2388-2394. |
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| File Name/Size | DocType | Version | Access | License | ||
| 张海龙-基于临界采样多相滤波器组的宽带信（1895KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
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