Title :
Interpolation circuit design for XRF systems using FFT
Author :
Piao, Zhe-Yan ; Won-Suk Song ; Jang, In-Gul ; Jin-Gyun Chung ; Lee, Chul-Dong
Author_Institution :
Div. of Electron. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
Interpolation circuits are widely used in many communication and digital signal processing systems. In this paper, we present a new interpolation algorithm to obtain the peak values of input waveforms in the shape of normal distribution curve used in XRF systems. Proposed algorithm is based on the combination of FFT and Lagrange interpolation method. In addition, optimized max value search algorithm and interpolation reduction algorithm are proposed for efficient hardware implementation. The performance of the proposed algorithm is verified using Verilog HDL.
Keywords :
IIR filters; X-ray spectroscopy; electronic engineering computing; fast Fourier transforms; hardware description languages; interpolation; logic design; normal distribution; waveform analysis; FFT; Lagrange interpolation method; Verilog HDL; XRF systems; digital signal processing systems; hardware implementation; input waveforms; interpolation algorithm; interpolation circuit design; interpolation reduction algorithm; normal distribution curve; optimized max value search algorithm; Hardware design languages; FFT; Interpolation; Lagrange; XRF; normal distribution;
Conference_Titel :
Quality Electronic Design (ASQED), 2011 3rd Asia Symposium on
Conference_Location :
Kuala Lumpur
Print_ISBN :
978-1-4577-0145-0
DOI :
10.1109/ASQED.2011.6111752
