Articles with "bandwidth extension" as a keyword



A 1–40-GHz LNA MMIC Using Multiple Bandwidth Extension Techniques

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Published in 2019 at "IEEE Microwave and Wireless Components Letters"

DOI: 10.1109/lmwc.2019.2908883

Abstract: A broadband low-noise amplifier (LNA) is presented in this letter. By using multiple bandwidth extension methods, including feedback, shunt, and double series peaking techniques, the proposed LNA achieves a measured average gain of 26.5 dB… read more here.

Keywords: bandwidth extension; lna mmic; ghz lna; using multiple ... See more keywords

A Bandwidth Extension Technique for Improving Jitter in Ring-VCO-Based Sub-Sampling PLLs

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Published in 2025 at "IEEE Transactions on Circuits and Systems II: Express Briefs"

DOI: 10.1109/tcsii.2024.3460072

Abstract: This brief proposes a structure to enhance the bandwidth of type-I sub-sampling phase-locked loops (SSPLL) without compromising the loop stability. A voltage-controlled delay line (VCDL) is employed at the output of the voltage-controlled oscillator (VCO)… read more here.

Keywords: sub sampling; extension technique; bandwidth extension; jitter ... See more keywords

Tutorial: Spectral bandwidth extension — Invention versus harmonic extrapolation

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Published in 2017 at "Geophysics"

DOI: 10.1190/geo2015-0572.1

Abstract: ABSTRACTVarious postprocessing methods can be applied to seismic data to extend the spectral bandwidth and potentially increase the seismic resolution. Frequency invention techniques, including phase acceleration and loop reconvolution, produce spectrally broadened seismic sections but… read more here.

Keywords: tutorial spectral; frequency; spectral bandwidth; bandwidth extension ... See more keywords

Deep learning-based artificial bandwidth extension: Training on ultrasparse OBN to enhance towed-streamer FWI

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Published in 2020 at "Geophysics"

DOI: 10.1190/tle39100718.1

Abstract: The lack of seismic low frequencies in towed-streamer data is known to have an outsized detrimental effect on advanced velocity model building techniques such as full-waveform inversion (FWI). Since seabed acquisition records ultralow frequencies (1–4… read more here.

Keywords: bandwidth extension; low frequencies; fwi; towed streamer ... See more keywords
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Speech Bandwidth Extension Using DWT-FFT-Based Data Hiding

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Published in 2020 at "Radioengineering"

DOI: 10.13164/re.2020.0174

Abstract: A novel transform-domain speech bandwidth extension algorithm is proposed to transmit information about the missing speech frequencies over a hidden channel, i.e., the related encoded spectral envelope parameters are hidden within the narrowband speech signal… read more here.

Keywords: speech; speech bandwidth; based data; bandwidth extension ... See more keywords