Results 51 to 60 of about 709,290 (208)
Sensors, 2023 The incorporation of digital modulation into radar systems poses various challenges in the field of radar design, but it also offers a potential solution to the shrinking availability of low-noise operating environments as the number of radar ...
Michael C. Brown, Changzhi Li
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Ultra‐Fast and Energy‐Efficient PZT Optical Tunable Delay Lines for Programmable Photonic Systems
Laser &Photonics Reviews, EarlyView.Thin‐film PZT enables optical tunable delay lines that simultaneously offer sub‐nanosecond switching, low propagation loss, and zero‐static‐power programmability. A five‐bit on‐chip delay line provides a maximum delay of 387.5 ps with a resolution of 12.5 ps, while reconfigurable MZI splitting ratios further enable non‐volatile optical arbitrary ...
Cunyu Shi +11 more
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AIP Advances, 2020 Doppler radar-based fast heart rate (HR) extraction has great application potential in stress and emotion recognition, anxiety treatments, etc.
Zi-Kai Yang +4 more
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Sensors, 2020 In this paper, we propose a Doppler spectrum-based passenger detection scheme for a CW (Continuous Wave) radar sensor in vehicle applications. First, we design two new features, referred to as an ‘extended degree of scattering points’ and a ‘different ...
Eugin Hyun +3 more
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Smart Spread Spectrum Modulated Tags for Detection of Vulnerable Road Users with Automotive Radar
Sensors, 2023 In recent years, there has been a significant increase in the number of collisions between vehicles and vulnerable road users such as pedestrians, cyclists, road workers and more recently scooter riders, especially in urban streets. This work studies the
Antonio Lazaro +3 more
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Jurnal Teknik ITS, 2013 Radar (Radio, Detection, and Ranging) mampu mendeteksi target untuk mendapatkan informasi berupa jarak, azimuth, dan kecepatan. Sinyal Radar ada dua jenis, yaitu pulsa (Pulsed Radar) dan gelombang kontinyu (Continuous Wave Radar).
Fery Gustomo, Suwadi Suwadi
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IEEE AccessContinuous wave (CW) radar is an alternative to gold-standard electrocardiography (ECG) for contactless heart rate (HR) monitoring and heart rate variability (HRV) analysis. This work aims to monitor HR and HRV using a deep learning (DL) model with a 61&#
Hui Lu +5 more
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Quarterly Journal of the Royal Meteorological Society, EarlyView.Using S‐band dual‐polarization radar and disdrometers during PRECIP 2022 in Taiwan, we analyze a Mei‐Yu frontal event with widespread stratiform rain and embedded convection. Multiple disdrometers are used to create a novel drop size distribution model for S‐band radars resolving both the drizzle and precipitation modes. The model reveals both inferred
Ian C. Cornejo +3 more
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MIMO noise radar - matched filters and coarrays [PDF]
, 2008 Copyright © 2008 IEEEThe noise radar concept can be extended to an array of K transmit antenna and M receive antenna. When independent noise sources are transmitted from each antenna the approach may be viewed as a special case of MIMO radar and matched ...
Capria, A. +3 more
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Freshwater Biodiversity Research in Brazil: Trends from a Systematic Review and Topic Modeling
International Review of Hydrobiology, Volume 111, Issue 2, December 2026.ABSTRACT Brazil is a megadiverse country that hosts six major biomes and a vast freshwater network. Despite this richness, research on freshwater biodiversity has been heterogeneous across regions, communities, and time, leaving significant knowledge gaps.
Paula Caroline dos Reis Oliveira +24 more
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