Results 11 to 20 of about 37,537 (191)

Practical imaging algorithms in ultra-wideband radar systems using active aperture synthesis and stochastic probing signals

Радіоелектронні і комп'ютерні системи, 2023
The subject of the manuscript is the algorithms for radar imaging. This research develops imaging methods and algorithms for wideband and ultrawideband active aperture synthesis systems with antenna arrays and stochastic probing signals.
Simeon Zhyla, Valerii Volosyuk, Vladimir Pavlikov, Nikolay Ruzhentsev, Eduard Tserne, Anatoliy Popov, Oleksandr Shmatko, Olena Havrylenko, Nataliia Kuzmenko, Kostiantyn Dergachov, Yuliya Averyanova, Olga Sushchenko, Maksym Zaliskyi, Oleksandr Solomentsev, Ivan Ostroumov, Borys Kuznetsov, Tatyana Nikitina   +16 more
doaj   +1 more source

Design of an Ultra-wideband Pseudo Random Coded MIMO Radar Based on Radio Frequency Switches

Leida xuebao, 2017
A Multiple-Input Multiple-Output (MIMO) ultra-wideband radar can detect the range and azimuth information of targets in real time. It is widely used for geological surveys, life rescue, through-wall tracking, and other military or civil fields.
Su Hai, Zhang Xiaojuan, Ye Shengbo, Zhang Qunying, Fang Guangyou   +4 more
doaj   +1 more source

Performances of multitones for ultra-wideband software-defined radar [PDF]

, 2017
From the literature review, it is apparent that there is a gap in quantifying the performances of multitone waveforms specifically for radar applications and experimental results are not commonly found.
Le Kernec, Julien, Romain, Olivier
core   +3 more sources

Design and Implementation of Wideband Exciter for an Ultra-high Resolution Airborne SAR System

Leida xuebao, 2013
According to an ultra-high resolution airborne SAR system with better than 0.1 m resolution, a wideband Linear Frequency Modulated (LFM) pulse compression exciter with 14.8 GHz carrier and 3.2 GHz bandwidth is designed and implemented.
Jia Ying-xin, Wang Yan-fei
doaj   +1 more source

Quality measurements of an UWB reduced-size CPW-fed aperture antenna [PDF]

, 2015
The paper presents a characterization of a compact co-planar waveguide (CPW)-fed slot loaded low return loss planar printed antenna designed for wireless communication and ultra-wideband (UWB) applications. Following a review of the antenna design, which
Ammar, M., Fanan, A., Mehdawi, M., Meng, F., Riley, N. G., Zolfaghari, M.   +5 more
core   +2 more sources

Spatiotemporal coherent summation of Ultra-Wideband chaotic radio pulses. Experiment [PDF]

Известия высших учебных заведений: Прикладная нелинейная динамика
The purpose of this work is to experimentally prove the physical feasibility of coherent addition of chaotic signals (ultra-wideband chaotic radio pulses) in space and time.
Kuzmin, Lev Viktorovich, Krivenko, Andrey Andreevich, Vladyka, Pavel Aleksandrovich, Efremova, Elena Valerievna   +3 more
doaj   +1 more source

Feasibility of Ultra-Wideband Channels at Millimeter Wavelengths Faded by Rain in GeoSurf Satellite Constellations

Telecom, 2023
We have studied the interference caused by amplitude and phase distortions induced by rain in ultra-wideband communication systems designed for using amplitude modulation in GeoSurf future satellite constellations.
Emilio Matricciani, Maurizio Magarini, Carlo Riva   +2 more
doaj   +1 more source

Experimental study of on-body radio channel performance of a compact ultra wideband antenna [PDF]

, 2015
In this paper, on-body radio channel performance of a compact ultra wideband (UWB) antenna is investigated for body-centric wireless communications.
Abbasi, Qammer H., Ashique, Ratil Hasnat, Khan, Mohammad Monirujjaman, Rahman, Mirazur   +3 more
core   +1 more source

Implementation Aspects of a Transmitted-Reference UWB Receiver [PDF]

, 2005
In this paper, we discuss the design issues of an ultra wide band (UWB) receiver targeting a single-chip CMOS implementation for low data-rate applications like ad hoc wireless sensor networks. A non-coherent transmitted reference (TR) receiver is chosen
Bevilacqua, Blazquez, Blazquez, Carbonelli, Carbonelli, Cassioli, Chen, Choi, Colavolpe, Cramer, Durisi, Durisi, Foerster, Franz, Helal, Ho, Hoctor, IEEE 802.15 WPAN Low rate Alternative PHY Task Group 4a (TG4a), Kunisch, Lottici, Mielczarek, Newaskar, O'Donnell, Orndorff, Proakis, Qiu, Rabbachin, Saleh, Souilmi, Stoica, Walden, Weisenhorn, Zhang   +32 more
core   +1 more source

Ultra-wideband radio signals distribution in FTTH networks [PDF]

, 2008
The use of an ultra-wideband (UWB) radio technique is proposed as a viable solution for the distribution of high-definition audio/video content in fiber-to-the-home (FTTH) networks.
Alves, Tiago, Beltran, Marta, Cartaxo, Adolfo, Llorente, Roberto, Marti, Javier, Morant, Maria, Perez Soler, Joaquin   +6 more
core   +2 more sources