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Published in 2020 at "Electronics Letters"
DOI: 10.1049/el.2020.0552
Abstract: Increasingly high bandwidths are desired in modern navigation and autonomous RF ranging signal design to achieve better pseudo-noise (PN) ranging accuracy. However, fulfilling the Nyquist criterion for such high-bandwidth signals would be a challenging issue…
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Keywords:
code tracking;
nyquist non;
sub nyquist;
commensurate sampling ... See more keywords
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Published in 2018 at "IEEE Access"
DOI: 10.1109/access.2018.2859229
Abstract: The large-scale deployment of wireless sensor networks is indispensable to the success of Internet of Things. Considering dynamic spectrum access and the limited spectrum resources in cognitive radio sensor networks, sub-Nyquist spectrum sensing based on…
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Keywords:
spectrum;
sub nyquist;
sensor networks;
wideband converter ... See more keywords
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Published in 2019 at "IEEE Access"
DOI: 10.1109/access.2018.2890579
Abstract: Sub-Nyquist pulse Doppler radar system has received wide attention recently because it can make the sampling rate lower than the Nyquist sampling rate. However, there are still two problems that must be addressed for sub-Nyquist…
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Keywords:
doppler;
doppler radar;
nyquist pulse;
sub nyquist ... See more keywords
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Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2021.3133532
Abstract: This paper details fronthaul optical links using sub-Nyquist sampling rate analog-to-digital converters (ADCs) for Beyond fifth generation (B5G) and 6G sub-THz massive multiple-input multiple-output (Ma-MIMO) beamforming. Unlike Common Public Radio Interface (CPRI) using high speed…
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Keywords:
nyquist sampling;
rate;
sampling rate;
mimo ofdm ... See more keywords
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Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3195040
Abstract: Sub–Nyquist sampling is a technique which has various applications in signal processing and communication technologies. Memory relaxation, peripherals operating at relatively lower speeds, and consequently low–power consumption designs are prominent motivations in sub–Nyquist receiver studies.…
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Keywords:
fractionally asymmetric;
design;
receiver;
sub nyquist ... See more keywords
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Published in 2018 at "IEEE Photonics Journal"
DOI: 10.1109/jphot.2018.2815619
Abstract: Delay-division-multiplexing (DDM) involves the use of signal preprocessing for the detection of data via sub-Nyquist analog-to-digital sampling, based on preallocated relative sampling delays among optical network users (ONUs) in an orthogonal frequency-division multiplexing (OFDM) passive…
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Keywords:
sampling rates;
hybrid sub;
sub nyquist;
nyquist sampling ... See more keywords
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Published in 2017 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2017.2650231
Abstract: Impulse radio ultra wideband (UWB) signals are used in various applications which require joint localization and communication. Due to the large bandwidth of the UWB signal, the estimation of time of arrival (TOA) and data…
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Keywords:
estimation;
joint estimation;
uwb signal;
estimation toa ... See more keywords
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Published in 2022 at "IEEE Signal Processing Letters"
DOI: 10.1109/lsp.2022.3203298
Abstract: Conventional tensor direction-of-arrival (DOA) estimation methods for sparse arrays apply canonical polyadic decomposition (CPD) to the high-order coarray covariance tensor for retrieving angle information. However, due to the low convergence rate of CPD-based algorithms for…
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Keywords:
doa estimation;
tensor;
nyquist tensor;
decomposition ... See more keywords
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Published in 2022 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2022.3144213
Abstract: To prevent lifestyle diseases, portable heartbeat detection systems by electrocardiograms (ECGs) for daily life monitoring have attracted attentions. For portable systems, power consumption is critical and it is thus beneficial to reduce the sampling frequency…
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Keywords:
variable pulsewidth;
ecg signals;
ecg signal;
model ... See more keywords
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Published in 2023 at "IEEE Transactions on Instrumentation and Measurement"
DOI: 10.1109/tim.2023.3261930
Abstract: Accurate measurement of the M-ary phase shift keying (MPSK) signal determined by finite parameters per unit of time is significant in engineering fields, such as digital microwave and satellite communication. In this article, we propose…
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Keywords:
carrier;
mpsk signal;
frequency;
parameter ... See more keywords
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Published in 2022 at "IEEE Transactions on Mobile Computing"
DOI: 10.1109/tmc.2021.3077731
Abstract: This paper investigates a context-adaptive sample acquisition strategy at sub-Nyquist sampling rate for wearable embedded sensor devices. Our approach can be applied to compressive sensing frameworks to minimise sampling and transmission costs. We consider a…
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Keywords:
low power;
nyquist sampling;
adaptive sub;
sampling low ... See more keywords