2008 Asia-Pacific Microwave Conference 2008
DOI: 10.1109/apmc.2008.4958629
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A circuit implementation for time-reversal of short impulses

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Cited by 2 publications
(4 citation statements)
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“…4, the BPF's frequency response is denoted by two impulses with dashed lines. Since the outputs of BPFs are low- frequency signals (i.e., oscillating at frequency 0 / 4 ω ), their magnitudes and phases can be easily detected and are denoted as complex phasors n A , 1, 2, , to find spectral samples) is more robust than the correlator configuration proposed by the authors in [10] . For example, the superheterodyne architecture is insensitive to mixers' internal isolation that causes DC offset.…”
Section: Description Of Time-reversal Systemmentioning
confidence: 99%
“…4, the BPF's frequency response is denoted by two impulses with dashed lines. Since the outputs of BPFs are low- frequency signals (i.e., oscillating at frequency 0 / 4 ω ), their magnitudes and phases can be easily detected and are denoted as complex phasors n A , 1, 2, , to find spectral samples) is more robust than the correlator configuration proposed by the authors in [10] . For example, the superheterodyne architecture is insensitive to mixers' internal isolation that causes DC offset.…”
Section: Description Of Time-reversal Systemmentioning
confidence: 99%
“…First, down-conversion avoids processing the input signal at high frequencies; in contrast, resonators with high quality factors must be built at gigahertz range with accurate resonant frequencies in [62]. Second, processing at intermediate frequency is much easier than at dc; for instance, the analog correlator design in [64] is sensitive to the isolation ratio in mixers while this issue is suppressed by the BPFs in the scheme in Fig. 3.…”
Section: B Fourier Transform Blockmentioning
confidence: 99%
“…In [62], passive resonators are used to catch the spectral lines directly. In [64], analog correlator configuration ("multiplier integrator") was exploited to realize the Fourier transform. The superheterodyne architecture is adopted here, because it offers two unique advantages.…”
Section: B Fourier Transform Blockmentioning
confidence: 99%
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