Noise sources are needed for test and validation of noise sensitive electronic systems but only wide band white noise sources are directly available on the market. In this paper a programmable colored noise generator is proposed. The system allows to configure the spectral features of the noise and is implemented with a Field Programmable Gate Array that produces the digital samples of the noise and a Digital to Analog Converter that produces the analogue output. The proposed generator overcomes the state of the art in terms of bandwidth and flexibility and produces a noise sequence whose length is unlimited for practical purposes. Experimental results show that the bandwidth of the generated noise can be selected up to a maximum of 120 MHz while defining the power spectral density with a frequency resolution equal to 0.2% of the selected bandwidth.

FPGA Based System for the Generation of Noise with Programmable Power Spectrum

NAPOLI, ETTORE;
2014-01-01

Abstract

Noise sources are needed for test and validation of noise sensitive electronic systems but only wide band white noise sources are directly available on the market. In this paper a programmable colored noise generator is proposed. The system allows to configure the spectral features of the noise and is implemented with a Field Programmable Gate Array that produces the digital samples of the noise and a Digital to Analog Converter that produces the analogue output. The proposed generator overcomes the state of the art in terms of bandwidth and flexibility and produces a noise sequence whose length is unlimited for practical purposes. Experimental results show that the bandwidth of the generated noise can be selected up to a maximum of 120 MHz while defining the power spectral density with a frequency resolution equal to 0.2% of the selected bandwidth.
2014
978-1-4799-3432-4
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11386/4772747
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