An Approach of Spectra Estimation for Irregularly Sampled Signals

摘要：

Spectra estimation of irregularly sampled signals is an important issue in time series analysis. To improve spectral resolution of irregular sampling signals, this paper presents a suppression algorithm of frequency spectrum leakage for non uniform Discrete Fourier Transform (NDFT). The DFT computation of irregularly sampled signals is performed via iterative non-linear estimation. Actual computing results show that the approach can effectively suppress frequency spectrum leakage in NDFT results, improve the resolution of DFT spectra.

关键词： irregularly sampled signals Fourier transform spectra estimation frequency spectrum leakage and data reconstruction

作者: Baotong Liu

作者单位: College of Physics and Information Science, Tianshui Normal University, Tianshui 741000, Gansu Province, China

会议类型: 国际会议

会议名称: 2010 International Conference on Image Analysis and Signal Processing(2010 图像分析与信号处理国际会议 IASP 10)

会议地点: 厦门

会议语种:英文

页码: 250-252

在线出版日期: 2010-04-12（万方平台首次上网日期，不代表论文的发表时间）