Results 61 to 70 of about 9,850 (223)
PAPR: Proximity Attention Point Rendering
Learning accurate and parsimonious point cloud representations of scene surfaces from scratch remains a challenge in 3D representation learning. Existing point-based methods often suffer from the vanishing gradient problem or require a large number of points to accurately model scene geometry and texture.
Yanshu Zhang +3 more
openaire +3 more sources
Research on Peak‐to‐Average Power Ratio Control Method for Switched Reluctance Pulse Generator
Addressing the different requirements for peak output power when SRPG supplies power to pulse loads and DC loads, the peak‐to‐average power ratio (PAPR) is taken as the generation performance optimisation parameter. By investigating the power characteristics of the SRPG, the influence of control parameters on the PAPR is studied.
Yanting Liu +4 more
wiley +1 more source
This document presents a revised mathematical framework for underwater 6G networks addressing common mistakes in research that result in overly optimistic outcomes. By employing established physical models and stringent technical limitations, we create a self‐validated benchmark of 776 Mbps over a distance of 44.8 m in clear ocean water with ...
Yousuf Islam +2 more
wiley +1 more source
Inward Leakage in Tight-Fitting PAPRs [PDF]
A combination of local flow measurement techniques and fog flow visualization was used to determine the inward leakage for two tight-fitting powered air-purifying respirators (PAPRs), the 3M Breathe-Easy PAPR and the SE 400 breathing demand PAPR. The PAPRs were mounted on a breathing machine head form, and flows were measured from the blower and into ...
Koh, Frank C. +2 more
openaire +2 more sources
Multispectrally Constrained Waveform Design for MIMO Radar Direction Finding
This paper focuses on the design of transmit waveforms for multiple‐input‐multiple‐output (MIMO) radar systems in a spectrally crowded environment. The purpose is to improve the angle estimation performance of MIMO radar by minimising the asymptotic estimation bound of multiple signal classification (MUSIC) algorithm.
Da Li +4 more
wiley +1 more source
APR Reduction Technique based on OFDM Pilot Filter Bank Limiting for Satellite Mobile Communications
Combined with OFDM (Orthogonal Frequency Division Multiplexing), satellite mobile communications will effectively achieve on-demand communication in areas with an ultra-low density of users.
Dai Tianfang
doaj +1 more source
Universal Filtered Multi-Carrier System Based on Selective Mapping
Internet of things (IoT) and machine-to-machine (M2M) communication are characterized by short periods and bursts. Traditional orthogonal frequency division multiplexing (OFDM) has not meet the demand for such traffic, while IoT and M2M communication ...
doaj +1 more source
In dust-generating scenarios in occupational environments, it is important to take measures to prevent not only pneumoconiosis, but also heatstroke. The aim of this study was to verify whether using a tight-fitting half-facepiece breath-response powered ...
Shingo Sekoguchi +5 more
doaj +1 more source
PAPR Analysis in OFDM-IQ-IM Systems
One of the key disadvantages of OFDM system, implemented already in 4G and 5G is high PAPR. For this reason, it is very important to evaluate the PAPR performance of any potential multiplexing technique candidate for upcoming generations.
Alvi, Al-Amin
core
Spectrally Compatible Deceptive Jamming Waveform Design for Synthetic Aperture Radar Countermeasures
This paper focuses on the design of synthetic aperture radar (SAR) deceptive jamming waveforms with spectrum‐compatible capability. By using the synthesised jamming waveform, successful deception against the hostile SAR system is demonstrated by generating false targets with high fidelity in both range and azimuth.
Yuhao Chen +4 more
wiley +1 more source

