Results 221 to 230 of about 246,662 (243)
Some of the next articles are maybe not open access.
Performance of DP-QDQ compared with DP-16QAM, DP-64QAM and DP-256QAM
SPIE Proceedings, 2016DP-QDQ is a partial-response shaping modulation based on 16QAM, which has been proposed in our previous research paper. In this paper, the power spectral density (PSD) of the DP-QDQ signal is analyzed and compared with DP-16QAM, DP-64QAM, and DP-256QAM signals, and the simulation setup is presented.
Chun Chang +3 more
openaire +1 more source
DP-Ethernet: the Profibus DP protocol implemented on Ethernet [PDF]
Computer Communications, 2003 The use of Ethernet networks at the low level of factory automation systems, which is even more frequent, requires the adoption of real time protocols to implement the typical functions of this level. This paper investigates the possibility of using of a very popular fieldbus protocol, Profibus DP, as a real time protocol for Ethernet.
openaire +2 more sources
Volume 6B: Ocean Engineering, 2020
Abstract Large offshore windfarm development has driven the need for next-generation simulators. These tools are of great utility in both analysis and design. Firstly, they offer the ability to combine advanced dynamic positioning and gangway simulation to evaluate operational safety limits across a large spectrum of weather conditions ...
Andrew Ross +2 more
openaire +1 more source
Abstract Large offshore windfarm development has driven the need for next-generation simulators. These tools are of great utility in both analysis and design. Firstly, they offer the ability to combine advanced dynamic positioning and gangway simulation to evaluate operational safety limits across a large spectrum of weather conditions ...
Andrew Ross +2 more
openaire +1 more source
Comparison of DPS and PS systems according to DPS weights
IEEE Communications Letters, 2006In the discriminatory processor-sharing (DPS) system with a single processor and K job classes, all jobs present in the system are served simultaneously with rates controlled by a vector of weights {gj >0; j=1,middotmiddotmiddot, K}. When all gj is equal, the DPS system reduces to the egalitarian processor-sharing (PS) system. In this paper we show how
Bara Kim, Jeongsim Kim
openaire +1 more source
2013 IEEE/RSJ International Conference on Intelligent Robots and Systems, 2013
Simultaneous Localization and Mapping (SLAM) is one of the most difficult tasks in mobile robotics. While the construction of consistent and coherent local solutions is simple, the SLAM remains a critical problem as the distance travelled by the robot increases. To circumvent this limitation, many strategies divide the environment in small regions, and
Renan Maffei +3 more
openaire +1 more source
Simultaneous Localization and Mapping (SLAM) is one of the most difficult tasks in mobile robotics. While the construction of consistent and coherent local solutions is simple, the SLAM remains a critical problem as the distance travelled by the robot increases. To circumvent this limitation, many strategies divide the environment in small regions, and
Renan Maffei +3 more
openaire +1 more source
IEEE International Conference on Robotics and Automation, 2004. Proceedings. ICRA '04. 2004, 2004
Probabilistic approaches have proved very successful at addressing the basic problems of robot localization and mapping and they have shown great promise on the combined problem of simultaneous localization and mapping (SLAM). One approach to SLAM assumes relatively sparse, relatively unambiguous landmarks and builds a Kalman filter over landmark ...
Austin I. Eliazar, Ronald Parr
openaire +1 more source
Probabilistic approaches have proved very successful at addressing the basic problems of robot localization and mapping and they have shown great promise on the combined problem of simultaneous localization and mapping (SLAM). One approach to SLAM assumes relatively sparse, relatively unambiguous landmarks and builds a Kalman filter over landmark ...
Austin I. Eliazar, Ronald Parr
openaire +1 more source
DP-PS: A Safety Program for DP Operations
Offshore Technology Conference, 1996Abstract As PETROBRAS develops its deepwater projects. more and more DP units are used on different applications like drilling. completion, intervention and pipeline handling, The increasing complexity of the operations has been considered in a program entitled 'DP-PS' (Safety Program For Dynamic Positioning ...
André Cordeiro +2 more
openaire +1 more source
Highly cascadable all-optical wavelength conversions of DP-QPSK, DP-16QAM, and DP-64QAM signals
2015 European Conference on Optical Communication (ECOC), 2015We present for the first time 14, 10, 4 cascaded wavelength conversions of 48Gbit/s DP-QPSK, 96Gbit/s DP-16QAM, 144Gbit/s DP-64QAM, respectively. The high cascadability is due to high conversion efficiency achieved by a counter-dithering scheme with small impact of residual dithering.
Hung Nguyen Tan +2 more
openaire +1 more source
Dynamic analysis of a DP-FPSO: offloading with DP and non-DP shuttle tankers in the Gulf of Mexico
Marine Systems & Ocean Technology, 2008The present paper addresses a comprehensive analysis carried out with a DP-FPSO (Dynamic Positioned-FPSO) for the Gulf of Mexico (GoM). As an outcome of this, a methodology for evaluating the DP-FPSO response and its offloading alternatives was devised, including different failure possibilities. Fully time-domain dynamic simulations were carried out in
Eduardo A. Tannuri +5 more
openaire +1 more source