Results 51 to 60 of about 12,262 (174)

Multiplexing of fiber Bragg grating sensors using an FMCW technique [PDF]

, 2014
Author name used in this publication: W. JinAuthor name used in this publication: M. S.
Chan, PKC, Demokan, S, Gong, JM, Jin, W
core   +1 more source

Moving Object Signal Analysis of Autodyne Radars with Linear Types of Frequency [PDF]

, 2017
Представлены результаты исследования особенностей формирования сигналов автодинной системы ближней радиолокации с линейной частотной модуляцией для движущегося отражающего объекта. Получены основные соотношения и результаты вычисления автодинных сигналов
Chupahin, A. P., Ignatkov, K. A., Noskov, V. Ya., Игнатков, К. А., Носков, В. Я., Чупахин, А. П.   +5 more
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Radiometer-on-a-chip: a path toward super-compact submillimeter-wave imaging arrays [PDF]

, 2010
A novel approach for submillimeter-wave heterodyne imaging arrays is presented in this paper. By utilizing diverse technologies such as GaAs membrane based terahertz diodes, wafer bonding, bulk Si micromachining, micro-lens optics, and CMOS 3-D chip ...
, , , Alex Peralta, Bertrand Thomas, Choonsup Lee, Erich Schlecht, Goutam Chattopadhyay, Imran Mehdi, John Gill, Ken Cooper, Nuria Llombart, Peter Siegel, Robert Lin   +13 more
core   +1 more source

Automatic radar-based 2-D localization exploiting vital signs signatures [PDF]

, 2022
In light of the continuously and rapidly growing senior and geriatric population, the research of new technologies enabling long-term remote patient monitoring plays an important role.
Bauduin, Marc, Bourdoux, André, Castro Miller, Ivan Dario, Crupi, Felice, De Greef, Eddy, Glassee, Miguel, Mercuri, Marco, Ocket, Ilja, Russo, Pietro, Rykunov, Maxim, Torfs, Tom   +10 more
core   +1 more source

Space Vector‐Signal Generator Based on High‐Order Amplitude‐Phase Modulated Programmable Metasurface

Small Structures, Volume 6, Issue 10, October 2025.
A high‐order amplitude‐phase modulated metasurface offers precise amplitude and phase control, enabling a spatial vector‐signal generator for efficient baseband and complex signal generation. This innovative approach enhances flexibility and dynamic adaptability in RF modulation, demonstrating significant potential for high‐speed wireless communication,
Zhen Jie Qi, Shao Nan Chen, Jun Yan Dai, Jun Wei Zhang, Li Jie Wu, Hui Dong Li, Tie Jun Cui, Qiang Cheng   +7 more
wiley   +1 more source

Technology developments for a large-format heterodyne MMIC array at W-band [PDF]

, 2012
We report on the development of W-band (75–110 GHz) heterodyne receiver technology for large-format astronomical arrays. The receiver system is designed to be both mass producible, so that the designs could be scaled to thousands of receiver elements ...
Church, Sarah, Cleary, Kieran, Gaier, Todd, Gawande, Rohit, Harris, Andrew, Kangaslahti, Pekka, Lau, Judy M., Neilson, Jeffrey, Readhead, Anthony C. S., Reeves, Rodrigo, Samoska, Lorene, Sieth, Matthew, Soria, Mary, Tantawi, Sami, Van Winkle, Dan, Voll, Patricia   +15 more
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WaveMic: Speech recognition of Chinese digit numbers from radio signals

IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.
This paper presents a new solution to the Chinese digits speech recognition problem by reconstructing the high‐frequency harmonic and non‐harmonic components with the radio signals received by millimetre wave radar sensors. Abstract In recent years, the use of millimetre wave radio signals for speech recognition has rapidly developed.
Shengchang Lan, Changhao Yang, Beijia Liu, Juwen Chen   +3 more
wiley   +1 more source

A varactor tuned low-cost 24 GHz harmonic VCO [PDF]

, 2006
We present a low-cost 24 GHz VCO that is based on a microstrip design combined with discrete packaged devices. The output frequency is generated by a harmonic oscillator. The tunabilty was reached using a varactor diode.
E. M. Biebl, L. Huang, M. O. Olbrich
core  

Rotor unmanned aerial vehicle localization in the building sheltered area based on millimetre‐wave frequency‐modulated continuous wave radar

IET Radar, Sonar &Navigation, Volume 18, Issue 10, Page 1937-1951, October 2024.
A novel algorithm is proposed for localizing the rotor unmanned aerial vehicle in the common L‐shaped street building sheltered area. The proposed method is based on multipath exploitation radar. Firstly, the multipath of the drone is extracted through time‐frequency transformation, and then the drone is localized based on the position relationship ...
Wanyu Zhang, Xiaolu Zeng, Yifei Yang, Shichao Zhong, Junbo Gong, Xiaopeng Yang   +5 more
wiley   +1 more source

On the anti‐intercept features of noise radars

IET Radar, Sonar &Navigation, Volume 18, Issue 7, Page 1014-1035, July 2024.
An evaluation of the related Low Probability of Detection, of Intercept and of Exploitation is presented for Continuous‐Emission Noise Radar waveforms with different operational parameters, that is, “tailored”, and with various “degrees of randomness”. The effect of “tailoring” is analysed with prospects for future work.
Gaspare Galati, Gabriele Pavan
wiley   +1 more source