Results 71 to 80 of about 35,288,445 (167)

Investigation on Beamspace Multiple-Input Multiple-Output Synthetic Aperture Radar Data Imaging

open access: yesInternational Journal of Antennas and Propagation, 2016
The multiple-input multiple-output (MIMO) technique can improve the high-resolution wide-swath imaging capacity of synthetic aperture radar (SAR) systems.
Hongbo Mo, Wei Xu, Zhimin Zeng
doaj   +1 more source

Experimental Performance Analysis of Digital Beam Forming on Synthetic Aperture Radar [PDF]

open access: yes, 2008
In this paper, we present the experimental results of a DBF performance to achieve High-Resolution Wide-Swath (HRWS) SAR concept. The measurements were accomplished by a ground-based DBF SAR system exploiting a switched antenna array on the receiver. SAR
Younis, Marwan   +3 more
core  

Single RF Channel Digital Beamforming Array Antenna Based on Compressed Sensing for Large-Scale Antenna Applications

open access: yesIEEE Access, 2018
A single radio frequency (RF) channel digital beamforming (DBF) array antenna based on compressed sensing (CS) was proposed to reduce the hardware costs, power consumption, and the design complexity of large-scale DBF systems.
Duo Zhang   +4 more
doaj   +1 more source

A low-cost narrow-beamwidth DBF radar concept

open access: yes, 2012
An innovative low-cost and higher than conventional angular resolution digital beamforming (DBF) array radar system is proposed and introduced in this paper.
Tang, Yue.   +3 more
core   +1 more source

Performance Investigation on the High-Resolution Wide-Swath SAR System Operating in Stripmap Quad-Pol and Ultra-Wide Scansar Mode [PDF]

open access: yes, 2011
The High-Resolution Wide-Swath (HRWS) is the spaceborne Synthetic Aperture Radar system, promoted by the German Aerospace Centre, conceived to obtain simultaneously high spatial resolution and width swaths.
Bordoni, Federica   +5 more
core   +1 more source

A Channel Calibration Algorithm Based on Isolated Scatterers for Multi-Channel HRWS-SAR

open access: yesIEEE Access, 2019
Multi-channel receiving technique has been proved to be a promising approach for synthetic aperture radar (SAR) to achieve simultaneous high-resolution and wide-swath (HRWS) imaging. With the support of digital beamforming (DBF) technique, ambiguity-free
Di Wu   +4 more
doaj   +1 more source

A Robust Nonlinear Beamforming Assisted Receiver for BPSK Signalling

open access: yes, 2005
Nonlinear beamforming designed for wireless communications is investigated. We derive the optimal nonlinear beamforming assisted receiver designed for binary phase shift keying (BPSK) signalling.
Wolfgang, A., Hanzo, L., Chen, S.
core   +1 more source

Complex-valued symmetric radial basis function network for beamforming

open access: yes, 2009
The complex-valued radial basis function (RBF) network proposed by Chen et al. (1994) has found many applications for processing complex-valued signals, in particular, for communication channel equalization and signal detection.
Sheng Chen, Chen, Sheng
core   +1 more source

A Novel Wide Area Multiple Azimuth Beam ISAR Imaging System

open access: yesIEEE Access, 2019
A novel multiple azimuth beams (MAB) inverse synthetic aperture radar (ISAR) system, as well as, the corresponding processing algorithms are proposed in this paper, which is a promising technology for wide area surveillance (WAS).
Taoli Yang   +3 more
doaj   +1 more source

Design of digital beamforming for 5G access point applications

open access: yes, 2023
International audienceAbstract Since the software‐defined radio digital beamforming (DBF) system is the newest tendency in fifth‐generation (5G) development and based on its flexibility applied to antenna arrays, this research paper presents a smart ...
Gharsallah, Ali   +7 more
core   +1 more source

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