Intermediate frequency sampling based on the Hilbert transform and its hardware implementation

Xue Feng Zheng; Tao Zeng; Shi Yin Zhu

Intermediate frequency sampling based on the Hilbert transform and its hardware implementation

Xue Feng Zheng^*, Tao Zeng, Shi Yin Zhu

^*Corresponding author for this work

School of Information and Electronics

Beijing Institute of Technology

Research output: Contribution to journal › Article › peer-review

Abstract

The paper provides a concrete scheme applying IF sampling and quadrature transform to realize the quadrature sampling of pulsed Doppler radar signal. High speed IF sampling combined with decimation pro rate can lead to unilateral spectrum and down-converter of signal spectrum. Considering the multichannel consistency and practical requirements, a dual channel ADC chip has been adopted to simplify the hardware design. Test results reveal that the approximate Hilbert transform of signal by simple digital signal processing can achieve better performance of mirror frequency rejection.

Original language	English
Pages (from-to)	57-60
Number of pages	4
Journal	Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology
Volume	24
Issue number	1
Publication status	Published - Jan 2004

Keywords

Hilbert transform
IF sampling
Mirror frequency error
Quadrature transform

Cite this

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AB - The paper provides a concrete scheme applying IF sampling and quadrature transform to realize the quadrature sampling of pulsed Doppler radar signal. High speed IF sampling combined with decimation pro rate can lead to unilateral spectrum and down-converter of signal spectrum. Considering the multichannel consistency and practical requirements, a dual channel ADC chip has been adopted to simplify the hardware design. Test results reveal that the approximate Hilbert transform of signal by simple digital signal processing can achieve better performance of mirror frequency rejection.

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KW - Quadrature transform

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Intermediate frequency sampling based on the Hilbert transform and its hardware implementation

Abstract

Keywords

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