Efficient FIR interpolation circuit using supplementary filter

Lee, Jaekyung; Jeon, Chang-Ha; Kim, Yong-Eun; Chung, Jin-Gyun; Lee, Chul-Dong

doi:10.1109/sibircon.2010.5555340

Cited by 2 publications

(5 citation statements)

References 7 publications

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“…In Table II, zero weighting factor ሺɁ ୵ ൌ Ͳሻ corresponds to original Lagrange interpolation and the case of Ɂ ୵ ൌ ͳ corresponds to Lagrange interpolation with supplementary filter [7]. Thus, proposed interpolation method can be regarded as a generalization of the interpolation method in [7].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Thus, proposed interpolation method can be regarded as a generalization of the interpolation method in [7].…”

Section: Simulation Resultsmentioning

confidence: 99%

“…7 shows the magnitude and phase delay characteristics of supplementary filter-based interpolation scheme using (7). It shows the ripple error in the interpolation interval is 0.08, which is much smaller than that of the conventional third-order Lagrange filter (0.1176).…”

Section: B Interpolation Using Supplementary Filtermentioning

confidence: 97%

“…An Algorithm to find the optimal coefficients of the supplementary filter was proposed in [7]. The supplementary filter coefficients are chosen such that the magnitude error in the passband is minimized.…”

Section: B Interpolation Using Supplementary Filtermentioning

confidence: 99%

“…The Farrow structure using Horner's Rule is the most popular method in implementing interpolation circuits. Recently, in [7], it is shown that the performances of the polynomial interpolation schemes can be improved by the use of a supplementary filter. X-ray spectroscopy is a powerful diagnostic tool in several fields in industrial applications [8].…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Design of weighted interpolation circuit using supplementary filter

Jeon

Lee

Seo

et al. 2010

2010 International SoC Design Conference

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Interpolation filters are widely used in many communication and multimedia applications. Recently, FIR interpolation method using supplementary filters was proposed to improve the performances of polynomial interpolation methods. In this paper, we propose a weighted interpolation method using supplementary filter which can be efficiently applied to XRF spectroscopy. It is shown that the proposed method achieves more accurate results compared with conventional interpolation filters with reduced hardware cost. The proposed system is implemented and tested using Altera Excalibur FPGA in an SoC design kit.

show abstract

Section: Simulation Resultsmentioning

confidence: 99%

“…Thus, proposed interpolation method can be regarded as a generalization of the interpolation method in [7].…”

Section: Simulation Resultsmentioning

confidence: 99%

Section: B Interpolation Using Supplementary Filtermentioning

confidence: 97%

Section: B Interpolation Using Supplementary Filtermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Design of weighted interpolation circuit using supplementary filter

Jeon

Lee

Seo

et al. 2010

2010 International SoC Design Conference

Self Cite

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show abstract

Weighted interpolation using supplementary filter

Lee

Jeon

Jang

et al. 2010

2010 IEEE Asia Pacific Conference on Circuits and Systems

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Interpolation filters are widely used in many communication and multimedia applications. Polynomial interpolation computes the coefficients of the polynomial according to the input information to obtain the interpolated value. Recently, FIR interpolation method using supplementary filters was proposed to improve the performances of polynomial interpolation methods. In this paper, we propose a weighted interpolation method using supplementary filter to further increase the performances of the interpolation filters. Examples and simulation results show that the proposed approach exhibits improved performances compared with the original supplementary filter-based interpolation method.

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Efficient FIR interpolation circuit using supplementary filter

Cited by 2 publications

References 7 publications

Design of weighted interpolation circuit using supplementary filter

Design of weighted interpolation circuit using supplementary filter

Weighted interpolation using supplementary filter

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