PDF全文下载:2017010001
丁锋1,2,徐玲2,刘喜梅1
(1.青岛科技大学 自动化与电子工程学院,山东 青岛266042; 2.江南大学 物联网工程学院, 江苏 无锡214122)
摘要:信号建模无论在信号处理领域还是在通信领域都是极其重要的。这是信号建模连载论文的第1篇,讨论简单的单一频率正弦信号的建模问题,利用离散观测数据,研究和提出新型辨识方法估计正弦信号模型的特征参数。对标准正弦信号和具有初始相位正弦信号的建模,提出了倍数两点法、倍数三点法、等距三点法确定信号模型的特征参数,提出了梯度辨识方法、多新息随机梯度方法和递增数据长度的递推梯度方法估计信号模型的特征参数。
关键词:信号建模;参数估计;梯度搜索;多新息辨识理论;递推梯度;正弦信号
中图分类号:TP 273文献标志码:A
引用格式:丁锋,徐玲,刘喜梅.信号建模(1):单频率信号\[J\].青岛科技大学学报(自然科学版),2017,38(1):113.
DING Feng, XU Ling, LIU Ximei.Signal modeling. Part A:singlefrequency signals\[J\].Journal of Qingdao University of Science and Technology(Natural Science Edition),2017,38(1):113.
Signal Modeling. Part A: Single-Frequency Signals
DING Feng1,2, XU Ling2, LIU Ximei1
(1.College of Automation and Electronic Engineering, Qingdao University of Science and Technology, Qingdao 266042, China;2.School of Internet of Things Engineering, Jiangnan University, Wuxi 214122, China)
Abstract:Signal modeling is important in the field of signal processing and communication. This is the first paper of the serial papers. It discusses the modeling of the simple single-frequency sine signals from the discrete observation data, studies and presents new identification methods for estimating the characteristic parameters of sine signals. For the standard sine signal model and the sine signal model with an initial phase, the two-point method, threemultiple point method and three isometricpoint method are proposed for determining the characteristic parameters of the signal models, and the gradient identification methods, the multi-innovation stochastic gradient methods and the incremental data recursive gradient methods are proposed for estimating the parameters of the signal models.
Key words: signal modeling; parameter estimation; gradient search; multiinnovation identification theory; recursive gradient; sine signal
收稿日期:20161207
基金项目:国家自然科学基金项目(61472195);山东省自然科学基金项目(ZR2013FL012).
作者简介:丁锋(1963—),男,博士,“泰山学者”特聘教授,博士生导师.
文章编号:16726987(2017)01000113;DOI:10.16351/j.16726987.2017.01.001