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Design of a Novel Ultrawideband Digital Receiver for Pulse Ground-Penetrating Radar

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3 Author(s)
Shengbo Ye ; Key Lab. of Electromagn. Radiat. & Detection Technol., Chinese Acad. of Sci., Beijing, China ; Bin Zhou ; Guangyou Fang

A new ultrawideband-digital-sampling technology is presented. This novel sampling technology is the first to employ both the successive-approximation-register technology and the equivalent-time-sampling technology to improve the bandwidth of the receiver. Accordingly, a new low-cost and compact ultrawideband digital receiver for pulse ground-penetrating radar is designed. The merit of this receiver is that it can convert radio-frequency signal to digital signal without any analog sampling gate or analog-to-digital converter. The equivalent sampling rate of the receiver is up to 33 GHz. The measurements show that this receiver has more than 3-GHz bandwidth and nearly 100% conversion efficiency.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:8 ,  Issue: 4 )