An Improved Digital Demodulation Algorithm in Low Sampling Frequency
文献类型：会议论文
| 作者 | Wang YT(王玉涛)2; Diao, Fengdan2; Yang G(杨钢)2; Wei, Xichen2; Wang Z(王忠)1 ; Luo Y(罗宇)1
|
| 出版日期 | 2020 |
| 会议日期 | July 27-29, 2020 |
| 会议地点 | Shenyang, China |
| 关键词 | Digital demodulation frequency fluctuation improved algorithms lower sampling frequency |
| 页码 | 3147-3151 |
| 英文摘要 | 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. |
| 源文献作者 | Systems Engineering Society of China (SESC) ; Technical Committee on Control Theory (TCCT) of Chinese Association of Automation (CAA) |
| 产权排序 | 2 |
| 会议录 | Proceedings of the 39th Chinese Control Conference, CCC 2020
 |
| 会议录出版者 | IEEE Computer Society |
| 会议录出版地 | Washington, USA |
| 语种 | 英语 |
| ISSN号 | 1934-1768 |
| ISBN号 | 978-9-8815-6390-3 |
| WOS记录号 | WOS:000629243503048 |
| 源URL | [http://ir.sia.cn/handle/173321/27707]  |
| 专题 | 沈阳自动化研究所_机器人学研究室 |
| 通讯作者 | Wang YT(王玉涛) |
| 作者单位 | 1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, 110169 2.College of Information Science and Engineering, Northeastern University, Shenyang 110819 |
| 推荐引用方式 GB/T 7714 | Wang YT,Diao, Fengdan,Yang G,et al. An Improved Digital Demodulation Algorithm in Low Sampling Frequency[C]. 见:. Shenyang, China. July 27-29, 2020. |
入库方式： OAI收割
来源：沈阳自动化研究所
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