Results 51 to 60 of about 77,045 (305)
IET Optoelectronics, 2023 The technical feasibility of developing an Internet of Things multi‐user communication system is evaluated based on a central digital multiband carrierless amplitude and phase transmitter, which broadcasts data on multiple channels for a number of low ...
Luís Rodrigues +3 more
doaj +1 more source
Design and Implementation of a FPGA and DSP Based MIMO Radar Imaging System [PDF]
, 2015 The work presented in this paper is aimed at the implementation of a real-time multiple-input multiple-output (MIMO) imaging radar used for area surveillance.
Dong Liang +4 more
core +2 more sources
Multi‐Material Additive Manufacturing of Soft Robotic Systems: A Comprehensive Review
Advanced Robotics Research, EarlyView.This review explores the transformative role of multi‐material additive manufacturing (MMAM) in the development of soft robotic systems. It presents current techniques, materials, and design strategies that enable functionally graded and adaptive structures.
Ritik Raj +2 more
wiley +1 more source
An Improved Single Phase-locked Loop Based on Synchronous Reference Frame
Kongzhi Yu Xinxi Jishu, 2019 Accurate tracking of phase angle, frequency and amplitude of the utility voltage is essential to ensure correct operation of grid connected inverters. The commonly used single phase-locked loop(SPLL) has poor dynamic characteristics due to the problem of
TANG Jianyu +4 more
doaj
Phase noise and jitter modeling for fractional-N PLLs [PDF]
Advances in Radio Science, 2007 We present an analytical phase noise model for fractional-N phase-locked loops (PLL) with emphasis on integrated RF synthesizers in the GHz range. The noise of the crystal reference, the voltage-controlled oscillator (VCO), the loop filter, the charge ...
S. A. Osmany +3 more
doaj
Novel quick-response, digital phase-locked loop
Electronics Letters, 1988 The structure of a conventional digital phase-locked loop has been modified to improve its transient response. The superiority of the new loop has been established analytically and by computer simulation results.
B.C. Sarkar, S. Chattopadhyay
openaire +1 more source
3D Printing of Soft Robotic Systems: Advances in Fabrication Strategies and Future Trends
Advanced Robotics Research, EarlyView.Collectively, this review systematically examines 3D‐printed soft robotics, encompassing material selections, function integration, and manufacturing methodologies. Meanwhile, fabrication strategies are analyzed in order of increasing complexity, highlighting persistent challenges with proposed solutions.
Changjiang Liu +5 more
wiley +1 more source
New software-controlled digital phase-locked loop
Electronics Letters, 1989 A new software-controlled digital phase-locked loop, having much faster response characteristics and wider stability boundary, is presented, with simulation results.
B.N. Biswas +5 more
openaire +1 more source
Hold-in, pull-in, and lock-in ranges of PLL circuits: rigorous mathematical definitions and limitations of classical theory [PDF]
, 2015 The terms hold-in, pull-in (capture), and lock-in ranges are widely used by engineers for the concepts of frequency deviation ranges within which PLL-based circuits can achieve lock under various additional conditions. Usually only non-strict definitions
Kuznetsov, N. V. +3 more
core +2 more sources
TreeSpider: In‐Canopy Exploration With Tether‐Based Aerial Modular Arms
Advanced Robotics Research, EarlyView.A tethered drone with perching arms and a 360° ring enables unprecedented maneuverability within dense forest canopies. By dynamically adjusting tether length and decoupling pitch from the frame, it navigates between branches, senses multiple trees, and interacts physically with foliage.
Luca Romanello +7 more
wiley +1 more source