Results 71 to 80 of about 33,460 (204)
Semidefinite Relaxation Method for Target Localization by MIMO Radar Using Bistatic Ranges
International Journal of Distributed Sensor Networks, 2014 We address the target localization problem by using bistatic range (BR) measurements in widely separated multiple-input multiple-output (MIMO) radar network.
Bin Sun +3 more
doaj +1 more source
International Journal of Adaptive Control and Signal Processing, Volume 40, Issue 3, Page 544-564, March 2026.This paper proposes two projector‐based Hopfield neural network (HNN) estimators for online, constrained parameter estimation under time‐varying data, additive disturbances, and slowly drifting physical parameters. The first is a constraint‐aware HNN that enforces linear equalities and inequalities (via slack neurons) and continuously tracks the ...
Miguel Pedro Silva
wiley +1 more source
IET Smart Energy Systems, Volume 2, Issue 1, Page 34-48, March 2026.An adaptive chance‐constrained hybrid SOCP‐Based ACOPF for coordinated optimisation of integrated source–grid–load–storage systems is presented. The coordinated optimisation of integrated source–grid–load–storage (SGLS) systems is challenged by renewable energy uncertainty, complex industrial load characteristics and stringent policy constraints ...
Mingyue He +6 more
wiley +1 more source
A paradox in bosonic energy computations via semidefinite programming relaxations
New Journal of Physics, 2013 We show that the recent hierarchy of semidefinite programming relaxations based on non-commutative polynomial optimization and reduced density matrix variational methods exhibits an interesting paradox when applied to the bosonic case: even though it can
M Navascués +4 more
doaj +1 more source
Experimental Joint Estimation of Phase and Phase Diffusion Via Deterministic Bell Measurements
Advanced Science, Volume 13, Issue 11, 23 February 2026.This work employs Bell measurement, a form of entangling measurement, to estimate both the phase and its fluctuations in an optical interferometer. By incorporating a novel quantum effect at the measurement stage, the proposed method achieves the ultimate precision limit and demonstrates the significant potential of entangling measurements in multi ...
Ben Wang +4 more
wiley +1 more source
Correcting for finite statistics effects in a quantum steering experiment
Physical Review ResearchVerifying entanglement between parties is essential for creating secure quantum communication. However, finite statistics can lead to false positive outcomes in any tests for entanglement.
Sophie Engineer +9 more
doaj +1 more source
Linear Programming Relaxations of Quadratically Constrained Quadratic Programs
, 2011 We investigate the use of linear programming tools for solving semidefinite programming relaxations of quadratically constrained quadratic problems. Classes of valid linear inequalities are presented, including sparse PSD cuts, and principal minors PSD ...
Belotti, Pietro +2 more
core +2 more sources
Planning and Control Framework for a Quadruped Robot With Changeable Configuration
Advanced Intelligent Systems, Volume 8, Issue 2, February 2026.Multiconfiguration quadruped robots enhance adaptability by switching between mammal‐like and reptile‐like morphologies. This study presents a nonlinear constraint‐based motion planner integrated with a hierarchical whole‐body controller, enabling robust configuration switching and locomotion on complex terrains. Experiments on slopes, irregular bricks,
Guanglin Lu +5 more
wiley +1 more source
Assessing the Mixing Quality of Hetero‐Aggregates: Applying Mixing Theory to STEM‐EDX Elemental Maps
Particle &Particle Systems Characterization, Volume 43, Issue 2, February 2026.This study introduces a quantitative method to assess the mixing quality of carbon black‐silica hetero‐aggregates formed in spray flames. Using STEM‐EDX mapping and concepts from mixing theory, the approach characterizes intra‐ and inter‐aggregate homogeneity and particle clustering, enabling precise, composition‐independent evaluation of hetero ...
Simon Buchheiser +4 more
wiley +1 more source
Semidefinite relaxation detector for higher-order modulated multiple-antenna systems
Tongxin xuebao, 2007 A semidefinite relaxation detector of 64-QAM signals was proposed,which is derived from rank relaxation and Lagrange bidual programming respectively.Computational complexity analyses and simulation results demonstrate the detector can make a good ...
YANG Yi-jin +3 more
doaj +2 more sources