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

fYear

2011

fDate

19-20 July 2011

Firstpage

236

Lastpage

239

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Quality Electronic Design (ASQED), 2011 3rd Asia Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4577-0145-0

Type

conf

DOI

10.1109/ASQED.2011.6111752

Filename

6111752