7,760 research outputs found
Robust Andrew's sine estimate adaptive filtering
The Andrew's sine function is a robust estimator, which has been used in
outlier rejection and robust statistics. However, the performance of such
estimator does not receive attention in the field of adaptive filtering
techniques. Two Andrew's sine estimator (ASE)-based robust adaptive filtering
algorithms are proposed in this brief. Specifically, to achieve improved
performance and reduced computational complexity, the iterative Wiener filter
(IWF) is an attractive choice. A novel IWF based on ASE (IWF-ASE) is proposed
for impulsive noises. To further reduce the computational complexity, the
leading dichotomous coordinate descent (DCD) algorithm is combined with the
ASE, developing DCD-ASE algorithm. Simulations on system identification
demonstrate that the proposed algorithms can achieve smaller misalignment as
compared to the conventional IWF, recursive maximum correntropy criterion
(RMCC), and DCD-RMCC algorithms in impulsive noise. Furthermore, the proposed
algorithms exhibit improved performance in partial discharge (PD) denoising.Comment: 5 pages, 5 figure
[2,9-Bis(3,5-dimethyl-1H-pyrazol-1-yl-κN 2)-1,10-phenanthroline-κ2 N,N′]bis(thiocyanato-κN)cadmium(II)
In the title complex, [Cd(NCS)2(C22H20N6)], the CdII ion is in a CdN6 coordination geometry which is intermediate between octahedral and trigonal–prismatic. The dihedral angles formed between the mean planes of the pyrazole rings and the phenanthroline system are 15.74 (15) and 16.30 (13)°. In the crystal, there is a π–π stacking interaction involving two symmetry-related pyrazole rings, with a centroid–centroid distance of 3.664 (3) Å. In addition, there is a relatively short intermolecular contact between C atoms [C⋯C = 3.399 (6) Å] involving symmetry-related pyridine rings along the a axis
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