MIXER-FREE DIGITAL QUADRATURE DEMODULATION BASED ON 2ND-ORDER SAMPLING

Authors
WANG FX YONG SW GUO GR
Citation
Fx. Wang et al., MIXER-FREE DIGITAL QUADRATURE DEMODULATION BASED ON 2ND-ORDER SAMPLING, Electronics Letters, 34(9), 1998, pp. 854-855
Citations number
2
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
34
Issue
9
Year of publication
1998
Pages
854 - 855
Database
ISI
SICI code
0013-5194(1998)34:9<854:MDQDBO>2.0.ZU;2-M
Abstract
A mixer-free, all-digital quadrature demodulation method is proposed. This method performs direct second-order sampling on the bandpass sign al. and produces quadrature basebands by passing the samples through p hase shifters. Mixers are eliminated. This method has more freedom to select mixer-free sampling frequencies than methods based on first-ord er sampling.