2020
DOI: 10.1016/j.measurement.2020.108175
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High sampling rate or high resolution in a sub-Nyquist sampling system

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Cited by 10 publications
(6 citation statements)
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“…There are several consequences produced if a big quantity of data is involved, such as trouble to find relevant information, burden to process signals with many coefficients and high power consumption, large resources for storage and transmission. Besides, technological limits impose that a high sampling frequency is necessarily counterbalanced by a low resolution [ 4 ]. Thus, sampling at a high frequency is not convenient from different points of view.…”
Section: Wideband Acquisition From Nyquist-shannon To Cs Paradigmmentioning
confidence: 99%
“…There are several consequences produced if a big quantity of data is involved, such as trouble to find relevant information, burden to process signals with many coefficients and high power consumption, large resources for storage and transmission. Besides, technological limits impose that a high sampling frequency is necessarily counterbalanced by a low resolution [ 4 ]. Thus, sampling at a high frequency is not convenient from different points of view.…”
Section: Wideband Acquisition From Nyquist-shannon To Cs Paradigmmentioning
confidence: 99%
“…To set the TAP resolution to 40 ps, the REFCLK is supplied with a 390.625 MHz clock signal via the timing control block. Equation (7) gives the relationship between the tap resolution (TAP) and the REFCLK frequency (F REF ). 30 F I G U R E 9 Sampling process of received signal through FPGA platform.…”
Section: Fpga Implementation Of Delay Line Blockmentioning
confidence: 99%
“…In fact, such a chip is very expensive and its ideal resolution is typically low. 7 Fortunately, there is an alternative low-cost sampling method called equivalent-time sampling that can be adapted to through-the-wall imaging applications. This sampling method achieves high sampling resolution using a low-speed ADC.…”
Section: Introductionmentioning
confidence: 99%
“…Independent of architecture, the physical implementations of AIC suffer from the components imperfections and noise interference due to circuit design and fabrication [3,4], like any device that employs mixed-signal technologies, mainly when off-the-shelf (OTS) components are used. These problems can cause, for example, gain and offset errors [5] and loss of synchronization between the input signal and the AIC control signals [6], which compromises the measurement and consequently the signal reconstruction quality.…”
Section: Introductionmentioning
confidence: 99%