The Design of Digital Noise Generator and Its Amplitude Flatness Optimization Method

Wang Xin-min; Shen Yan; Lei Hong; Yin He-jun

doi:10.3724/SP.J.1146.2006.01754

Volume 30 Issue 5

Dec. 2010

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Wang Xin-min, Shen Yan, Lei Hong, Yin He-jun. The Design of Digital Noise Generator and Its Amplitude Flatness Optimization Method[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1155-1158. doi: 10.3724/SP.J.1146.2006.01754

Citation:

Wang Xin-min, Shen Yan, Lei Hong, Yin He-jun. The Design of Digital Noise Generator and Its Amplitude Flatness Optimization Method[J]. Journal of Electronics & Information Technology, 2008, 30(5): 1155-1158. doi: 10.3724/SP.J.1146.2006.01754

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The Design of Digital Noise Generator and Its Amplitude Flatness Optimization Method

doi: 10.3724/SP.J.1146.2006.01754

Received Date: 2006-11-09
Rev Recd Date: 2007-06-14
Publish Date: 2008-05-19

Abstract

Abstract

This paper realizes m sequence and FIR algorithm to generate band-limited white noise on a FPGA chip. This noise generator features excellent in-band amplitude flatness and broad bandwidth by means of a novel anti-sinc square function FIR digital filter. The detailed theoretic derivation of this new filter is given and the comparison of its theoretic results with experimental results is also made. The paper then analyzes the relations between maxim bandwidth, in-band amplutude flatness and out-band spurs position of this kind of generator, and gives the corresponding experimental results. The accordance between theoretic and experimental results indicates the validity of the presented method.

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References(1)

References

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