Results 51 to 60 of about 103,059 (283)

Optimum SHE for cascaded H-bridge multilevel inverters using: NR-GA-PSO, comparative study [PDF]

open access: yes, 2015
Selective Harmonic Elimination (SHE) is very widely applied technique in the control of multilevel inverters that can be used to eliminate the low order dominant harmonics.
Alamri, B, Darwish, M, Sallama, A
core   +1 more source

Chaos in optimal communication waveforms [PDF]

open access: yesProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2015
The properties of nonlinear dynamics and chaos are shown to be fundamental to optimal communication signals subject to two practical and realistic design requirements: (i) operation in a noisy environment and (ii) simple hardware implementation. Starting with a simple electronic circuit, a linear filter receiver is presumed, and the matched optimal ...
Ned J. Corron, Jonathan N. Blakely
openaire   +1 more source

MIMO Radar Waveform Optimization With Prior Information of the Extended Target and Clutter [PDF]

open access: yes, 2009
The concept of multiple-input multiple-output (MIMO) radar allows each transmitting antenna element to transmit an arbitrary waveform. This provides extra degrees of freedom compared to the traditional transmit beamforming approach.
Chun-yang Chen   +2 more
core   +2 more sources

Research on Optimization Design Method of MIMO Radar Waveform Based on Frequency-Orthogonal LFM

open access: yesIEEE Access
In the field of Multiple Input Multiple Output(MIMO) radar waveform design, how to design an orthogonal waveform with high performance is one of the current hot topics. The Orthogonal Frequency Division Multiplexing - Linear Frequency Modulation(OFDM-LFM)
Xinrong Mao   +3 more
doaj   +1 more source

DECOMPOSITION TECHNIQUES FOR ICESAT/GLAS FULL-WAVEFORM DATA [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
The geoscience laser altimeter system (GLAS) on the board Ice, Cloud, and land Elevation Satellite (ICESat), is the first long-duration space borne full-waveform LiDAR for measuring the topography of the ice shelf and temporal variation, cloud and ...
Z. Liu, X. Gao, G. Li, J. Chen
doaj   +1 more source

Slow-Time Ambiguity Function Shaping With Spectral Coexistence for Cognitive Radar

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
In the spectrum-congested environment, weak target obscuration can be addressed by simultaneously shaping the ambiguity function and waveform spectrum based on cognitive radar a priori information. In this article, we investigate joint waveform design to
Cui Zhang   +6 more
doaj   +1 more source

Maxwell-compensated design of asymmetric gradient waveforms for tensor-valued diffusion encoding

open access: yes, 2019
Purpose: Asymmetric gradient waveforms are attractive for diffusion encoding due to their superior efficiency, however, the asymmetry may cause a residual gradient moment at the end of the encoding. Depending on the experiment setup, this residual moment
Nilsson, Markus   +2 more
core   +1 more source

Optimal Waveform Selection For Target Classification

open access: yes, 1996
Publication in the conference proceedings of EUSIPCO, Trieste, Italy ...
Sameh M. Sowelam, Ahmed H. Tewfik
openaire   +3 more sources

3D‐Printed Sulfur‐Derived Polymers With Controlled Architectures for Lithium‐Sulfur Batteries

open access: yesAdvanced Functional Materials, EarlyView.
Rheology‐guided formulation design for direct ink writing enables the fabrication of 3D sulfur copolymer cathodes with controlled architectures for lithium‐sulfur batteries. The printed electrodes exhibit multiscale porosity and high sulfur utilization, delivering enhanced electrochemical performance compared to conventional cast electrodes.
Bin Ling   +7 more
wiley   +1 more source

Constrained Transmit Beampattern Design Using a Correlated LFM-PC Waveform Set in MIMO Radar

open access: yesSensors, 2020
This paper considers the design of a desired transmit beampattern under the good ambiguity function constraint using a correlated linear frequency modulation-phase coded (LFM-PC) waveform set in multiple-input-multiple-output (MIMO) radar. Different from
Sheng Hong   +4 more
doaj   +1 more source

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