Results 51 to 60 of about 7,212 (221)

Multi-Band FMCW Signal Generator with a Tunable Sweep-Frequency Bandwidth and Inter-Band Interval

Photonics
In this work, we experimentally demonstrate a scheme for generating a multi-band FMCW signal with a tunable sweep bandwidth and inter-band interval. For such a scheme, an original FMCW signal is first acquired by directly current-modulating a master ...
Md Mamun-Ur-Rashid, Qiupin Wang, Xin Tong, Pu Ou, Guangqiong Xia, Zhengmao Wu   +5 more
doaj   +1 more source

On‐Chip Saturated Absorption of CO2 in a Silicon‐on‐Sapphire Waveguide

Advanced Optical Materials, Volume 14, Issue 24, 25 June 2026.
We demonstrate the first saturated absorption of a molecular gas on a planar photonic chip. By coupling carbon dioxide with the tightly confined light of a silicon‐on‐sapphire waveguide, we achieve optical saturation using only milliwatt powers. This breakthrough provides a practical, low‐power foundation for creating ultra‐compact mid‐infrared ...
Shahar Edelstein, Noa Mazurski, Uriel Levy   +2 more
wiley   +1 more source

Signal Processing for Digital Beamforming FMCW SAR [PDF]

, 2020
According to the limitations of single channel Frequency Modulation Continuous Wave (FMCW) Synthetic Aperture Radar (SAR), Digital Beamforming (DBF) technology is introduced to improve system performance.
Qin Xin, Zhihong Jiang, Mi He, Pu Cheng
core  

Lithium Niobate Quadratic Integrated Nonlinear Photonics: Enabling Ultra‐Wide Bandwidth and Ultrafast Photonic Engines

Nanophotonics, Volume 15, Issue 9, 13 May 2026.
This perspective surveys emerging quantum and classical photonic applications across operating wavelengths and timescales, highlighting persistent technological gaps in integrated light sources. We examine the unique advantages of quadratic nonlinear photonics on the thin‐film lithium niobate (TFLN) platform and discuss strategies for realizing ...
Meng Tian, Guanyu Han, Ziyao Feng, Yu Liu, Yu Wang, Wenjun Deng, Ayed Al Sayem, Qiushi Guo   +7 more
wiley   +1 more source

FMCW RADAR SYSTEM FOR TRANSPONDER IDENTIFICATION

Progress In Electromagnetics Research B, 2018
—In this paper, we deal with a frequency modulated continuous wave (FMCW) radar used for localizing and tracking targets by frequency evaluation of the received radar beat signal. The radar system achieved with a primary radar (reader) and a secondary radar (transponder) is addressed as super high frequency (SHF) radio frequency identification (RFID ...
Bouhlel, Nizar, Meric, Stéphane, Moullec, Claude, Brousseau, Christian   +3 more
openaire   +4 more sources

Uncorrelated interference in 79 GHz FMCW and PMCW automotive radar [PDF]

, 2019
An extensive comparison on radar-to-radar interference in frequency-modulated continuous wave (FMCW) and binary phase-modulated continuous wave (PMCW) radars is performed.
Jansen, Feike, Laghezza, Francesco (author), Laghezza, F, Uysal, Faruk (author), Jeroen Overdevest, Alexander Yarovoy, Jansen, FG, Overdevest, Jeroen; id_orcid, Uysal, Faruk, Yarovoy, Alexander (author), Overdevest, Jeroen, Uysal, Faruk; id_orcid, Overdevest, Jeroen (author), Feike Jansen, Yarovoy, Alexander, Jansen, Feike (author), Laghezza, Francesco, Knott, Peter, Faruk Uysal, Francesco Laghezza   +19 more
core   +1 more source

Proposed 77 GHz FMCW photonic radar. [PDF]

, 2021
Proposed 77 GHz FMCW photonic radar.
Lunchakorn Wuttisittikulkij (9707288), Demostenes Zegarra Rodriguez (11707659), Vishal Sharma (1310979), Gridsada Phanomchoeng (11707662), Jamel Nebhen (11603976), Santosh Kumar (106550), Ratchatin Chancharoen (9707282), Muhammad Saadi (11707653), Abhishek Sharma (144862), Sattam Al Otaibi (11707656), Sushank Chaudhary (11707650)   +10 more
core   +1 more source

Compressive Signal Processing for Estimating Range-Velocity-AoA in FMCW Radar Applications

IEEE Access
Frequency-modulated continuous wave (FMCW) radars are known to accurately estimate the parameters of targets with low-cost and low-power transceiver systems.
Eny Sukani Rahayu, Dyonisius Dony Ariananda, Risanuri Hidayat, Gabriel Daniel   +3 more
doaj   +1 more source

First Triple‐Frequency Retrievals of Binned Raindrop Size Distributions

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract Our understanding of raindrop size distributions (DSDs) aloft is largely limited, owing to a scarcity of effective measurements. In this study, a two‐step optimal estimation technique is developed for retrieving binned DSDs based on a newly developed vertically‐pointing triple‐frequency radar system. In the first step, we employ the Tridon and
Fuxin Yao, Haoran Li, Yang Zhang, Zheng Ruan, Liping Liu, Nan Wei, Yan Feng, Yong Huang   +7 more
wiley   +1 more source

Characterization and Design of Small Array Antennas for Direction-Of-Arrival Estimation Characterization and Design of Small Array Antennas for Direction-Of-Arrival Estimation for Ultra-Wideband Industrial FMCW Radar Systems [PDF]

, 2015
This book covers the characterization and design of small array antennas for ultra-wideband (UWB) industrial linear frequency-modulated continuouswave (FMCW) RADAR systems.
Gardill, Markus
core