Results 81 to 90 of about 16,631 (258)

Silicon‐Embedded Multifunctional Heterogeneous Integration for Miniaturized Photoplethysmography Detection Devices

Advanced Science, EarlyView.
ABSTRACT The multifunctional integration of chips with high flexibility and scalable manufacturing is crucial for enhancing chip performance, reducing chip size, and simplifying chip design. However, balancing volume, cost, flexibility, and functionality using traditional heterogeneous integration methods is challenging.
Lang Chen, Shizun Hu, Zhou Yang, Shitao Shen, Pan Zhang, Han Xu, Chi Zhang, Wei Wang   +7 more
wiley   +1 more source

Electrostatic Self‐Assembly Induced Nest‐Like MXene Networks on Fabric for Ultra‐Broadband Flexible Absorption

Advanced Science, EarlyView.
In this study, an electrostatically self‐assembled WPU‐MXene@FC flexible fabric constructs a “nest‐like” structure on fibers, building construct MXene multiple loss paths, achieving ultra‐wideband absorption of 25.3–1200 GHz in a thickness of 1.8 mm, while also exhibiting superhydrophobicity, acid and alkali resistance, and bending resistance ...
Min Luo, Zihao Chen, Haotian Li, Kexun Li, Wei Wang, Weishi Jiao, Donghong Wang, Qiye Wen   +7 more
wiley   +1 more source

Noise Suppression in 94 GHz Radar-Detected Speech Based on Perceptual Wavelet Packet

Entropy, 2016
A millimeter wave (MMW) radar sensor is employed in our laboratory to detect human speech because it provides a new non-contact speech acquisition method that is suitable for various applications. However, the speech detected by the radar sensor is often
Fuming Chen, Chuantao Li, Qiang An, Fulai Liang, Fugui Qi, Sheng Li, Jianqi Wang   +6 more
doaj   +1 more source

Using EMD-FrFT filtering to mitigate high power interference in chirp tracking radars

, 2011
This letter presents a new signal processing subsystem for conventional monopulse tracking radars that offers an improved solution to the problem of dealing with manmade high power interference (jamming).
Soraghan, John, John J. Soraghan, Elgamel, Sherif, Sherif A. Elgamel   +3 more
core   +1 more source

Velocity Dealiased Spectral Estimators of Range Migrating Targets using a Single Low-PRF Wideband Waveform [PDF]

, 2013
Wideband radars are promising systems that may provide numerous advantages, like simultaneous detection of slow and fast moving targets, high range-velocity resolution classification, and electronic countermeasures.
Bidon, Stéphanie, Besson, Olivier, Deudon, François, Tourneret, Jean-Yves   +3 more
core   +1 more source

Combining Spatial Multi‐Omics Data to Decipher Spatial Domains and Elucidate Cell Heterogeneity Based on Self‐Supervised Graph Learning

Advanced Science, EarlyView.
A self‐supervised multi‐view graph fusion framework integrates spatial multi‐omics, excelling in domain identification and denoising. It reconstructs spatial pseudo‐expression, jointly analyzes multi‐omics data, infers RNA velocity, predicts spatial omics features from single‐cell multi‐omics, and detects spatially dark genes and transcription factors,
Yuejing Lu, Rui Qiao, Ying Li, Junhong Li, Nuoya Yue, Jing Ge, Jiao Wang, Luonan Chen, Peiluan Li   +8 more
wiley   +1 more source

Orthogonal Waveform Experiments with a Highly Digitized Radar

, 2012
An innovative highly-digitized radar system called GigaRad is currently under development by the DLR Microwaves and Radar Institute. An objective of the system is having a flexible, high-resolution imaging radar with wide-swath or 3-D capabilities ...
Castellanos Alfonzo, Gabriel, Jirousek, Matthias, Peichl, Markus   +2 more
core  

Tunable High‐Performance Metamaterial Filters Based on Novel SRR Architectures

Advanced Science, EarlyView.
Based on two novel SRR configurations and two independent SRR integration approaches, four tunable bandpass metamaterial filters were fabricated with an ultra‐thin ceramic substrate. Among them, SM‐2 achieves over 97% electromagnetic wave transmittance, with a minimal 1.15% deviation in its resonant frequency prediction, making them promising ...
Lingxi Qu, Liya Zheng, Ruopeng Liu, Chunlin Ji, Bin Li   +4 more
wiley   +1 more source

Characterisation of an l-band digital noise radar

, 2007
This paper experimentally evaluates the dynamic range of a digital radar at L-band employing both direct digital synthesis and direct RF sampling, thus minimizing analogue components.
Mosel, S., M. Trinkle, D. Grayf, W. Brodie-Tyrrell, Ferguson, B., Gray, D., Trinkle, M., B. Ferguson, Brodie-Tyrrell, W., S. Mosel   +9 more
core   +1 more source

Experimental Evaluation of Moving Target Compensation in High Time-Bandwidth Noise Radar

, 2023
In this article, the effect a moving target has on the signal-to-interference-plus-noise-ratio (SINR) for high time-bandwidth noise radars is investigated. To compensate for cell migration we apply a computationally efficient stretch processing algorithm
Ankel, Martin, Jonsson, Robert S., Delsing, Per, Ankel, Martin,, Tholén, Mats O.,, Ulander, Lars,, Tholen, Mats, Ulander, Lars M. H., Jonsson, Robert S.,, Ulander, Lars M.H.,, Jonsson, Robert,, Delsing, Per,, Bryllert, Tomas,, Bryllert, Tomas   +13 more
core   +1 more source