Title :
Discrete Spectrum Correction Based on Centroid Method
Author :
Yanhua, Jin ; Kaiyu, Qin ; Xin, Zhang
Author_Institution :
Univ. of Electron. Sci. & Technol., Chengdu
Abstract :
There are frequency and amplitude errors in spectrums obtained from discrete spectrum analysis to windowed signals. In this paper, the discrete spectrum correcting technology based on centroid method is proposed. The deduction of correction formula applying to Hamming window function, Blackman window function, and Kaiser window function are putted forward. The validity of the formulas is testified through the simulation on Matlab and Labvindows/CVI.
Keywords :
spectral analysis; Blackman window function; Hamming window function; Kaiser window function; centroid method; correction formula deduction; discrete spectrum analysis; discrete spectrum correction; Analytical models; Error correction; Fourier transforms; Frequency measurement; Instruments; Length measurement; Polynomials; Signal analysis; Testing; Time domain analysis; centriod; correction; spectrum analysis;
Conference_Titel :
Electronic Measurement and Instruments, 2007. ICEMI '07. 8th International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-4244-1136-8
Electronic_ISBN :
978-1-4244-1136-8
DOI :
10.1109/ICEMI.2007.4350557
