Results 11 to 20 of about 304 (132)

A semi-definite programming (SDP) method for designing IIR sharp cut-off digital filters using frequency-response masking [PDF]

open access: yes2004 IEEE International Symposium on Circuits and Systems (ISCAS), 2004
This paper studies the design of frequency response masking (FRM) filters with infinite duration impulse response (IIR) model and masking sub-filters. They are useful in realizing sharp cutoff digital filters and with low passband delays. The designs of the model and masking filters are carried out by means of semidefinite programming (SDP) and model ...
Ho, KL, Chen, HH, Chan, SC
openaire   +2 more sources

An accelerated primal‐dual method for semi‐definite programming relaxation of optimal power flow

open access: yesIET Energy Systems Integration, 2023
The application of a semi‐definite programming (SDP) approach to the Alternating Current Optimal Power Flow problem has attracted significant attention in recent years.
Zhan Shi   +6 more
doaj   +1 more source

FDA-MIMO Radar Robust Beamforming Based on Matrix Weighting Method

open access: yesIEEE Access, 2022
This paper deals with the problem of robust beamforming and target power estimation in the presence of main-lobe interference with frequency division array multiple-input multiple-output (FDA-MIMO) radar by adopting a weighting matrix at the receiving ...
Changlin Zhou   +5 more
doaj   +1 more source

A comparative study of heuristic methods for cardinality constrained portfolio optimization

open access: yesHigh-Confidence Computing, 2023
The cardinality constrained mean–variance (CCMV) portfolio selection model aims to identify a subset of the candidate assets such that the constructed portfolio has a guaranteed expected return and minimum variance. By formulating this model as the mixed-
Lei Fu, Jun Li, Shanwen Pu
doaj   +1 more source

Method for TDOA localisation in over-the-horizon environments

open access: yesThe Journal of Engineering, 2019
Here, the authors propose a new over-the-horizon time-difference-of-arrival localisation model based on the ground-wave and simultaneously put forward a modified semi-definite programming algorithm, which is called Ground-wave semi-definite programming ...
Jian-Xin Liu, Xing-Peng Mao
doaj   +1 more source

Optimal Multi-Antenna Transmission for the Cooperative Non-Orthogonal Multiple-Access System

open access: yesApplied Sciences, 2021
We investigate the beamforming for the multi antenna cooperative non-orthogonal multiple access (NOMA) system, where an access point (AP) delivers messages for multiple user terminals (UT) with successive interference cancellation (SIC) reception method.
Duckdong Hwang   +3 more
doaj   +1 more source

An Enhanced MAX-SINR Strategy With Interference Leakage Power Constraint in Multiuser Multiantenna SWIPT Systems

open access: yesIEEE Access, 2021
Interference alignment (IA) is one of the most promising techniques to eliminate interference in multiuser multiantenna systems. Simultaneous wireless information and power transfer (SWIPT) technology is applied to harvest energy from radio frequency ...
Xiaorong Xu   +3 more
doaj   +1 more source

Implementation of POVMs by Projective Measurements and Postselection:Optimal Strategies and Applications to Unambiguous State Discrimination

open access: yesProceedings, 2019
We present new results concerning simulation of general quantum measurements (POVMs) by projective measurements (PMs) for the task of Unambiguous State Discrimination (USD).
Filip B. Maciejewski, Michał Oszmaniec
doaj   +1 more source

Optimal power flow of MT‐HVDC system connected large offshore wind farms using mixed‐integer semi‐definite programming approach

open access: yesIET Generation, Transmission & Distribution, 2021
Typically offshore wind farms are connected to the onshore AC grid networks using voltage source converter based MT‐HVDC networks. This article aims to formulating optimal power flow (OPF) problem of MT‐HVDC system connected large offshore wind farms ...
Nikhil Pathak, Zechun Hu
doaj   +1 more source

Robust Transceiver Design for Extended Target Detection in a Signal-Dependent Interference Scenario

open access: yesIEEE Access, 2020
Assuming unknown knowledge of target impulse response (TIR), this paper develops robust design methods to optimize the transceiver for the detection of extended targets in the presence of signal-dependent interference.
Yu Yao   +3 more
doaj   +1 more source

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