Accurate AM-FM signal demodulation and separation using nonparametric regularization method | |
Hu, Xiyuan1; Peng, Silong2; Guo, Baokui3; Xu, Pengcheng4 | |
发表期刊 | SIGNAL PROCESSING |
ISSN | 0165-1684 |
2021-09-01 | |
卷号 | 186页码:12 |
通讯作者 | Peng, Silong(silong.peng@ia.ac.cn) |
摘要 | In this paper we propose a novel adaptive nonparametric regularization (NPR) method for solving optimization problems with linear constraint. The regular parameter in NPR algorithm is adaptively updated. We prove that the NPR is convergent and provide an early stop method (ESM) with a termination criterion to handle the perturbation problem which is unsolved in other methods such as the augmented Lagrange method (ALM). We then introduce a new differential operator which can absolutely annihilate the amplitude-modulated and frequency-modulated (AM-FM) signals (AM-FM operator, AFO). The proposed operator is a precise operator and thus can obtain a more accurate solution in operator based signal demodulation and separation problems. We apply the NPR algorithm in signal demodulation and separation based on the AFO and propose signal demodulation (NPR-AFOSD) and separation (NPR-AFOSS) algorithms. The experimental results on both synthetic AM-FM signals and the real-life data demonstrate that the proposed demodulation and separation methods are more effective and robust than the state-ofthe-art methods. (C) 2021 Elsevier B.V. All rights reserved. |
关键词 | Nonparametric regularization method AM-FM signal Null space pursuit (NSP) Differential equation Signal demodulation and separation |
DOI | 10.1016/j.sigpro.2021.108131 |
关键词[WOS] | EMPIRICAL MODE DECOMPOSITION ; SPACE COMPONENT ANALYSIS ; MINIMIZATION ALGORITHM ; FREQUENCY ; OPERATOR ; PURSUIT ; SPEECH |
收录类别 | SCI |
语种 | 英语 |
资助项目 | Natural Science Foundation of China[61571438] |
项目资助者 | Natural Science Foundation of China |
WOS研究方向 | Engineering |
WOS类目 | Engineering, Electrical & Electronic |
WOS记录号 | WOS:000652606600009 |
出版者 | ELSEVIER |
七大方向——子方向分类 | 图像视频处理与分析 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ia.ac.cn/handle/173211/45224 |
专题 | 智能制造技术与系统研究中心_多维数据分析(彭思龙)-技术团队 |
通讯作者 | Peng, Silong |
作者单位 | 1.Nanjing Univ Sci & Technol, Sch Comp Sci & Engn, Nanjing 210094, Peoples R China 2.Chinese Acad Sci, Inst Automat, Beijing 100190, Peoples R China 3.Sogou Inc, Beijing 100084, Peoples R China 4.Chinese Acad Sci, Acad Math & Syst Sci, Beijing 100190, Peoples R China |
通讯作者单位 | 中国科学院自动化研究所 |
推荐引用方式 GB/T 7714 | Hu, Xiyuan,Peng, Silong,Guo, Baokui,et al. Accurate AM-FM signal demodulation and separation using nonparametric regularization method[J]. SIGNAL PROCESSING,2021,186:12. |
APA | Hu, Xiyuan,Peng, Silong,Guo, Baokui,&Xu, Pengcheng.(2021).Accurate AM-FM signal demodulation and separation using nonparametric regularization method.SIGNAL PROCESSING,186,12. |
MLA | Hu, Xiyuan,et al."Accurate AM-FM signal demodulation and separation using nonparametric regularization method".SIGNAL PROCESSING 186(2021):12. |
条目包含的文件 | 条目无相关文件。 |
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