| An Improved Digital Demodulation Algorithm in Low Sampling Frequency | |
Wang YT(王玉涛)1; Diao, Fengdan1; Yang G(杨钢)1; Wei, Xichen1; Wang Z(王忠)2 ; Luo Y(罗宇)2
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| Department | 机器人学研究室 |
| Conference Name | 39th Chinese Control Conference, CCC 2020 |
| Conference Date | July 27-29, 2020 |
| Conference Place | Shenyang, China |
| Author of Source | Systems Engineering Society of China (SESC) ; Technical Committee on Control Theory (TCCT) of Chinese Association of Automation (CAA) |
| Source Publication | Proceedings of the 39th Chinese Control Conference, CCC 2020 |
| Publisher | IEEE Computer Society |
| Publication Place | Washington, USA |
| 2020 | |
| Pages | 3147-3151 |
| Indexed By | EI |
| EI Accession number | 20203909242373 |
| Contribution Rank | 2 |
| ISSN | 1934-1768 |
| ISBN | 978-9-8815-6390-3 |
| Keyword | Digital demodulation frequency fluctuation improved algorithms lower sampling frequency |
| Abstract | Digital demodulation is a kind of algorithm used in measurement of sinusoidal signals. Two requirements are in need for this algorithm in practical applications. One is that the frequency of measured signal is known and constant, and the other that the sampling frequency of is high enough. However, due to noise signals, the frequency is not usually constant, and there exists fluctuations of frequency in measured signals. It is comparatively evident that the fluctuations are in small range, about 5 percent, and in this case, the extent of fluctuation is small enough that the filters do not work. However, it is large enough to arouse the changes of demodulation results. And the second problem is about the selective sampling frequency. The sampling frequency of is closely bound up with accuracy and expense. Excessive frequency, generally used to keep results accuracy, is equivalent to high budget. To solve the problems above, an improved approach including two aspects named adaptive demodulation and iterative compensation is proposed in this paper. |
| Language | 英语 |
| Document Type | 会议论文 |
| Identifier | http://ir.sia.cn/handle/173321/27707 |
| Collection | 机器人学研究室 |
| Corresponding Author | Wang YT(王玉涛) |
| Affiliation | 1.College of Information Science and Engineering, Northeastern University, Shenyang 110819 2.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110169 |
| Recommended Citation GB/T 7714 | Wang YT,Diao, Fengdan,Yang G,et al. An Improved Digital Demodulation Algorithm in Low Sampling Frequency[C]//Systems Engineering Society of China (SESC), Technical Committee on Control Theory (TCCT) of Chinese Association of Automation (CAA). Washington, USA:IEEE Computer Society,2020:3147-3151. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| An Improved Digital （123KB） | 会议论文 | 开放获取 | CC BY-NC-SA | View Application Full Text | ||
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