Results 171 to 180 of about 2,958,782 (230)

Digital Beamforming for Antenna Arrays

2019 IEEE Indian Conference on Antennas and Propogation (InCAP), 2019
With an increasing number of subscribers to the terrestrial cellular and/or satellite based services, and a resultant rise in the demand for the data rate, there is an urgent need of advanced signal processing schemes that improve the power and the spectral efficiencies. Digital beamforming using an array of antenna elements is one such technique. When
Aarushi Dhami, Naitik N Parekh, Yash Vasavada   +2 more
openaire   +2 more sources

Hybrid Analog and Digital Beamforming for RIS-Assisted mmWave Communications

IEEE Transactions on Wireless Communications, 2023
Reconfigurable intelligent surface (RIS) assisted millimeter wave (mmWave) communications has been envisioned as a prominent technology for future wireless networks, since it is capable of simultaneously providing abundant spectrum resources and ...
Shiqi Gong, C. Xing, Pingyue Yue, Liangyuan Zhao, Tony Q. S. Quek   +4 more
semanticscholar   +1 more source

A Robust Digital Beamforming on Receive in Elevation for Airborne MIMO SAR System

IEEE Transactions on Geoscience and Remote Sensing, 2022
The echo separation issue for multiple-input–multiple-output (MIMO) synthetic aperture radar (SAR) is usually regarded as a more technical challenge. Spotlighted as a promising solution to echo separation, the well-known short-term shift-orthogonal (STSO)
Yu Wang, Daiyin Zhu, Guodong Jin, Qinghao Yu, Peiyao Wang, Shilin Niu, Yuan Cheng, Di Wu   +7 more
semanticscholar   +1 more source

High-Resolution Digital Beamforming Receiver Using DDS–PLL Signal Generator for 5G Mobile Communication

IEEE Transactions on Antennas and Propagation, 2022
This article presents a signal generator and a digital beamforming receiver (DBR) with high phase control resolution and high beam control resolution, respectively.
Dong-Chan Kim, Ye-Eun Chi, Junhyeong Park, L. Minz, Seong‐Ook Park   +4 more
semanticscholar   +1 more source

A Reconfigurable Digital Beamforming V-Band Phased-Array Receiver

European Solid-State Circuits Conference, 2022
A scalable 4-element V-band digital beamforming phased-array receiver (RX) implemented in TSMC 28-nm CMOS integrates both an analog front-end and beamforming functions in the digital back-end (DBE).
Deniz Dosluoglu, Kun-Da Chu, Diego Peña-Colaiocco, Ivan Zhao, V. Sathe, J. Rudell   +5 more
semanticscholar   +1 more source

Evaluation of MU-MIMO Digital Beamforming Algorithms in B5G/6G LEO Satellite Systems

Advanced Satellite Multimedia Systems Conference / Signal Processing for Space Communications Workshop, 2022
Satellite Communication (SatCom) systems will be a key component of 5G and 6G networks to achieve the goal of providing unlimited and ubiquitous communications and deploying smart and sustainable networks.
M. Dakkak, D. Riviello, A. Guidotti, A. Vanelli‐Coralli   +3 more
semanticscholar   +1 more source

A Hybrid Radar System With a Phased Transmitting Array and a Digital Beamforming Receiving Array

IEEE Transactions on Antennas and Propagation, 2021
In this article, a hybrid radar configuration for automotive radar applications is proposed, with the system architecture, design, and measured results reported. The hybrid radar system consists of a vertically distributed phased transmitting array (PTA)
Yingrui Yu, W. Hong, Z. Jiang, Hui Zhang
semanticscholar   +1 more source

Digital Beamformer Antenna System

2007 16th IST Mobile and Wireless Communications Summit, 2007
Growing importance of smart antennas encouraged us to extend our research activity toward the development of a transmitting digital beamformer. In this paper we give an overview about our approach.
Levente Dudas, Peter Kovacs, Arpad Drozdy, Rudolf Seller   +3 more
openaire   +2 more sources

Digital extrapolation beamforming

ICASSP '83. IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005
More sensors are usually required in order to enhance the resolution of a beamformer and to improve its beam pattern. Due to physical and/or economical constraints this requirement cannot be met. This paper presents the results of an analytical and experimental study of the use of a signal extrapolation method in order to "synthetically" (without ...
H. Fan, E. El-Masry, W. Jenkins
openaire   +1 more source

Tracking Targets using Digital Beamforming

2020 11th International Conference on Computing, Communication and Networking Technologies (ICCCNT), 2020
Anti aircraft systems have the objective of reducing or mitigating actions involving the detection and disabling of enemy aircraft reaching a significant area. These devices ought to be prepared to protect sensitive assets from high-altitude, high-speed enemy fighters assaults by working out accurate jet bombardments.
Abhishek Singh J., Paramananda Jena, Veena Devi S.V.   +2 more
openaire   +1 more source