Institutional Repository of Radio Astronomy Research Laboratory
| 一种基于宽带频谱的信号提取方法 | |
| Alternative Title | Signal extraction method based on broadband spectrum |
冯冬冬1; 刘奇2 ; 朱春花1; 王玥2; 刘晔2; 蔡明辉2; 陈卯蒸2
| |
| 2021-09-01 | |
| Source Publication | 现代电子技术
 |
| ISSN | 1004-373X |
| Volume | 44Issue:17Pages:67-71 |
| Contribution Rank | 2 |
| Abstract | 针对国际电信联盟ITU-R SM.1753-2建议书中给出的"20%"信噪分离法在适应性和准确率方面的不足,提出一种基于宽带频谱的信号提取方法。首先,依据实测宽带频谱数据样本噪声及信号特征,分析了影响信噪分离的关键因素,结合标准差理论,采用窗口划分法对"20%"信噪分离方法进行改进;其次,以信号提取准确率为目标,对窗口划分宽度、修正系数等关键因素进行优化,提高算法的准确性;最后,运用此方法对实测频谱数据样本进行信噪分离和信号提取,并与现有信号提取方法的准确率进行比对。结果表明,该方法的信号提取准确率最高,能够应用于宽带频谱的信号提取。 |
| Other Abstract | In view of the shortcomings of the 20% signal⁃noise separation method given in the International Telecommunication Union(ITU)Recommendation ITU⁃R SM.1753⁃2 in terms of adaptability and accuracy, a signal extraction method based on broadband spectrum is proposed. According to the noise and signal characteristics of the measured broadband spectrum data samples, the key factors affecting signal⁃noise separation are analyzed. In combination with the standard deviation theory, the window partition method is adopted to improve the 20% signal⁃noise separation method. By taking the accuracy of signal extraction as the goal, the key factors such as window partition width and correction coefficient are optimized to improve the accuracy of the algorithm. The signal⁃noise separation and signal extraction of the measured spectrum data samples are carried out with the proposed method. The accuracy of the proposed method is compared with that of the existing signal extraction methods. The results show that the proposed method has the highest signal extraction accuracy. Therefore, it can be applied to the signal ex⁃ traction of broadband spectrum. |
| Keyword | 信号提取 宽带频谱 信号识别 窗口划分 信噪分离 电磁环境监测 |
| DOI | 10.16652/j.issn.1004-373x.2021.17.013 |
| Indexed By | 其他 |
| Language | 中文 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.xao.ac.cn/handle/45760611-7/4675 |
| Collection | 射电天文研究室_微波技术实验室 110米口径全可动射电望远镜（QTT）_技术成果 |
| Corresponding Author | 冯冬冬 |
| Affiliation | 1.新疆大学物理科学与技术学院,新疆乌鲁木齐830046; 2.中国科学院新疆天文台,新疆乌鲁木齐830011 |
| Recommended Citation GB/T 7714 | 冯冬冬,刘奇,朱春花,等. 一种基于宽带频谱的信号提取方法[J]. 现代电子技术,2021,44(17):67-71. |
| APA | 冯冬冬.,刘奇.,朱春花.,王玥.,刘晔.,...&陈卯蒸.(2021).一种基于宽带频谱的信号提取方法.现代电子技术,44(17),67-71. |
| MLA | 冯冬冬,et al."一种基于宽带频谱的信号提取方法".现代电子技术 44.17(2021):67-71. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| 冯冬冬-2021-一种基于宽带频谱的信号（2095KB） | 期刊论文 | 出版稿 | 开放获取 | CC BY-NC-SA | View Application Full Text | |
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment