数字信号处理
三角函数
计算机科学
离散余弦变换
数学
算法
计算机硬件
人工智能
几何学
图像(数学)
作者
Milos Sedlacek,Zdenek Stoudek
出处
期刊:Measurement
[Elsevier]
日期:2010-10-01
卷期号:43 (8): 994-1011
被引量:5
标识
DOI:10.1016/j.measurement.2010.01.016
摘要
Abstract Windows are used in digital signal processing in order to reduce leakage in spectral analysis and to estimate signal parameters in non-coherent sampling. This paper deals with design theory and presents an algorithm that enables the design of cosine windows with spectra fulfilling various prescribed properties (belonging to various window classes) and window order up to 10. The design is based on iterative window spectrum zero placing. The proposed algorithm was implemented in Matlab, but other mathematical tools can also be used. In addition to the design of all three classes of Rife and Vincent windows and of flattop windows, this method also enables the design of windows with different properties, corresponding to five newly-defined window classes. Both symmetrical and periodic (DFT) windows can be designed. The use of windowing for a range of signal parameter estimation is mentioned and referenced, the principle of the window design method is described, and definitions of the new window classes and examples of designed windows are presented. A graphical user interface of the window design described in this paper in VBA-Excel is accessible free of charge on the www site http://measure.feld.cvut.cz/en/DCW .
科研通智能强力驱动
Strongly Powered by AbleSci AI