Results 41 to 50 of about 305,947 (290)
Multiple-Description Coding by Dithered Delta-Sigma Quantization [PDF]
, 2009 We address the connection between the multiple-description (MD) problem and Delta-Sigma quantization. The inherent redundancy due to oversampling in Delta-Sigma quantization, and the simple linear-additive noise model resulting from dithered lattice ...
Ostergaard, Jan, Zamir, Ram
core +3 more sources
A Review on Fundamentals of Noise-Shaping SAR ADCs and Design Considerations
ChipsA general overview of Noise-Shaping Successive Approximation Register (SAR) analog-to-digital converters is provided, encompassing the fundamentals, operational principles, and key architectures of Noise-Shaping SAR (NS SAR).
Victor H. Arzate-Palma +3 more
doaj +1 more source
, 2013 This paper proposes novel spectrum sensing algorithms for cognitive radio networks. By assuming known transmitter pulse shaping filter, synchronous and asynchronous receiver scenarios have been considered.
Bogale, Tadilo Endeshaw +1 more
core +1 more source
Comparative study of the MASH digital delta-sigma modulators [PDF]
, 2009 The paper focuses on the Multi-stAge noise SHaping (MASH) digital delta-sigma modulator (DDSM) that employs multi-moduli (MM-MASH). Different architectures of the MASH DDSM are compared.
Condon, Marissa, Xu, Tao
core +1 more source
Low-Noise Amplifier and Noise/Distortion Shaping Beamformer
, 2023 The emergence of advanced technologies has increased the need for fast and efficient mobile communication that can facilitate transferring large amounts of data and simultaneously serve multiple users. Future wireless systems will rely on millimeter-wave frequencies, enabled by recent silicon hardware advancements.
openaire +2 more sources
Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM
FEBS Letters, EarlyView.Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley +1 more source
FEBS Letters, EarlyView.Fluorescent probes allow dynamic visualization of phosphoinositides in living cells (left), whereas mass spectrometry provides high‐sensitivity, isomer‐resolved quantitation (right). Their synergistic use captures complementary aspects of lipid signaling. This review illustrates how these approaches reveal the spatiotemporal regulation and quantitative
Hiroaki Kajiho +3 more
wiley +1 more source
Arbitrary Time Shaping of Broadband Low-Coherence Light Based on Optical Parametric Amplification
Photonics, 2023 Laser–plasma interactions (LPIs) hinder the interaction of high-energy laser pulses with targets. The use of broadband low-coherence light has been proposed to reduce the impact of LPIs.
Yue Wang +5 more
doaj +1 more source
Calpain small subunit homodimerization is robust and calcium‐independent
FEBS Letters, EarlyView.Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy +4 more
wiley +1 more source
Recent Advances in High-Resolution Hybrid Discrete-Time Noise-Shaping ADCs
IEEE Open Journal of the Solid-State Circuits Society, 2021 High precision data acquisition requires very-high-resolution Analog-to-digital converters (ADC) for kHz speed or to keep a relatively high resolution for wider bandwidth (BW) around the MHz range.
Dongyang Jiang +4 more
doaj +1 more source