Results 1 to 10 of about 545,717 (377)
The density of mid-sized Kuiper belt objects from ALMA thermal observations [PDF]
, 2017 The densities of mid-sized Kuiper belt objects are a key constraint into understanding the assembly of objects in the outer solar system. These objects are critical for understanding the currently unexplained transition from the smallest Kuiper belt ...
Brown, Michael E., Butler, Bryan J.
core +3 more sources
Deep-Learning-Based Millimeter-Wave Massive MIMO for Hybrid Precoding [PDF]
IEEE Transactions on Vehicular Technology, 2019 Millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) has been regarded to be an emerging solution for the next generation of communications, in which hybrid analog and digital precoding is an important method for reducing the hardware ...
Hongji Huang +4 more
semanticscholar +1 more source
MS-YOLO: Object Detection Based on YOLOv5 Optimized Fusion Millimeter-Wave Radar and Machine Vision
IEEE Sensors Journal, 2022 Millimeter-wave radar and machine vision are both important means for intelligent vehicles to perceive the surrounding environment. Aiming at the problem of multi-sensor fusion, this paper proposes the object detection method of millimeter-wave radar and
Yunyun Song +3 more
semanticscholar +1 more source
Two-Dimensional Beam Steering Based on Compact Programmable Coding Metasurface
Applied Sciences, 2022 A programmable coding metasurface provides unprecedented flexibility to manipulate electromagnetic waves dynamically. By controlling the peculiarity of subwavelength artificial atoms, devices with metasurfaces perform various functionalities.
Fei Yang +6 more
doaj +1 more source
Position and Orientation Estimation Through Millimeter-Wave MIMO in 5G Systems [PDF]
IEEE Transactions on Wireless Communications, 2017 Millimeter-wave (mm-wave) signals and large antenna arrays are considered enabling technologies for future 5G networks. While their benefits for achieving high-data rate communications are well-known, their potential advantages for accurate positioning ...
Arash Shahmansoori +4 more
semanticscholar +1 more source
Design of a Millimeter-Wave MIMO Antenna Array for 5G Communication Terminals
Italian National Conference on Sensors, 2022 This paper presents a design of multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) communication systems. The proposed MIMO configuration consists of a two antenna arrays combination.
J. Khan +5 more
semanticscholar +1 more source
Introduction to Millimeter/Sub-millimeter Astronomy [PDF]
, 2018 This is an introduction to the basic elements needed for the measurements and interpretation of data in the millimeter and sub-mm wavelength range. A more complete version will be published in the proceedings of the Saas Fee Winter School 2008.
openaire +2 more sources
Absorptive Microstrip-Fed Slot Antenna With Wide Reflectionless Band by Loading Bandstop Filter
IEEE Open Journal of Antennas and Propagation, 2021 This paper presents an absorptive microstrip-fed slot antenna with a wide reflectionless band and high radiation efficiency. The proposed antenna consists of a microstrip-fed slot antenna, a quarter-wavelength coupled-line bandstop filter (BSF), and ...
Yanqun Liu +4 more
doaj +1 more source
IEEE Access, 2020 A novel dual-band patch antenna operating at 28/38 GHz is proposed for multiple-input multiple-output (MIMO) communication systems in this paper. The antenna utilizes substrate integrated waveguide (SIW) transmission line as the feed by means of a ...
Pengfei Liu +5 more
doaj +1 more source
Shaping electromagnetic waves using software-automatically-designed metasurfaces
Scientific Reports, 2017 We present a fully digital procedure of designing reflective coding metasurfaces to shape reflected electromagnetic waves. The design procedure is completely automatic, controlled by a personal computer.
Qian Zhang +5 more
doaj +1 more source