The Feature Selective Validation Technique as Analysis Tool for Shielding Effectiveness of Slotted Enclosures

Rusiecki, Andrzej; Aniserowicz, K.; Duffy, Alistair; Orlandi, Antonio

doi:10.1109/temc.2015.2459602

Cited by 3 publications

(8 citation statements)

References 36 publications

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“…The equivalence of results obtained for both directions of propagation was experimentally confirmed in [33].…”

Section: Fig 2 Measurement Setup With Gtem Cellsupporting

confidence: 55%

“…where E 0 (ω, P) is the reference value computed in the enclosure (shield) absence and E S (ω, P) is the computed in the enclosure presence. The equivalence of results obtained for both directions of propagation was experimentally confirmed in [33]. Point P is located outside the enclosure, at the z-axis (Fig.…”

Section: Validation Of Measurements and Computationssupporting

confidence: 54%

“…In [31][32][33] the FEKO suite [34] was used for analysis of a similar problem. The model of the enclosure was illuminated by the electromagnetic plane wave.…”

Section: Validation Of Measurements and Computationsmentioning

confidence: 99%

“…The concept of internal stirring has already been presented in [31][32][33]. In the present work, a detailed analysis of the impact of the internal stirrer position on the SE is provided.…”

Section: Introductionmentioning

confidence: 97%

“…Different locations of a monopole antenna inside the enclosure are considered. FEKO suite [34], based on the method of moments (MoM), was used for computations in [31][32][33]. Here, COMSOL [35] is applied, which is a finite element method (FEM) code whose numerical technique is intrinsically different from MoM.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

Rusiecki¹,

Aniserowicz

Duffy

et al. 2016

IET Science, Measurement & Technology

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Abstract:A new technique for approximate evaluation of a small slotted enclosure shielding effectiveness (SE) is proposed. The enclosure under test is equipped with a built-in, rotating, conductive stirrer, and the SE is determined for discrete angles of the stirrer position. The SE characteristics computed in the frequency domain for the enclosure with the stirrer are compared to those of the enclosure containing different arrangements of printed circuit boards. The paper concludes that the inclusion of an internal stirrer is a potentially beneficial approach to shielding effectiveness testing.

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“…The equivalence of results obtained for both directions of propagation was experimentally confirmed in [33].…”

Section: Fig 2 Measurement Setup With Gtem Cellsupporting

confidence: 55%

Section: Validation Of Measurements and Computationssupporting

confidence: 54%

“…In [31][32][33] the FEKO suite [34] was used for analysis of a similar problem. The model of the enclosure was illuminated by the electromagnetic plane wave.…”

Section: Validation Of Measurements and Computationsmentioning

confidence: 99%

“…The concept of internal stirring has already been presented in [31][32][33]. In the present work, a detailed analysis of the impact of the internal stirrer position on the SE is provided.…”

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

Rusiecki¹,

Aniserowicz

Duffy

et al. 2016

IET Science, Measurement & Technology

Self Cite

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show abstract

Hybrid model for estimating the shielding effectiveness of metallic enclosures with arbitrary apertures

Sun

Chen

2020

IET Science, Measurement & Technology

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A New Fault Diagnosis Method of Bearings Based on Structural Feature Selection

2019

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By using signal processing and statistical analysis methods simultaneously, many heterogeneous features can be produced to describe the bearings fault with more comprehensive and discriminant information. At same time, there may exist redundant or irrelevant information which will instead reduce the diagnosis performance. To solve this problem, it is necessary to conduct feature selection which tries to choose the most typical and discriminant features by evaluating their effect on fault status. However, if the structural relationship between features has not been considered well, some similar or redundant features are still probably chosen, which would introduce bias into the final diagnosis model. In this paper, a new fault diagnosis method of bearings based on structural feature selection is proposed to solve the aforementioned problem. Obeying the hypothesis that the features with strong relatedness have close coefficient distance, the proposed method aims to improve diagnosis performance via determining group structure in fault features. First, a new feature selection strategy is proposed by introducing a group identification matrix. Using this matrix, two evaluation criteria about intra-group feature correlation and inter-group feature difference are constructed by means of coefficient’s distance. Consequently, we get a multi-objective 0–1 integer programming problem by minimizing intra-group distance and maximizing inter-group distance simultaneously. Second, we use the multi-objective particle swarm optimization algorithm to solve this problem, and then determine the optimal group structure of features adaptively. Finally, a diagnosis model can be trained by support vector machine on the typical features extracted from these groups. Experimental results on four UCI datasets show the effectiveness of the proposed group feature selection strategy. Moreover, the experimental results on two bearing datasets (i.e., CWRU and IMS datasets) demonstrate that the proposed method can identify the inherent group structure in fault features, and then has better diagnosis performance compared with several state-of-the-art methods.

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The Feature Selective Validation Technique as Analysis Tool for Shielding Effectiveness of Slotted Enclosures

Cited by 3 publications

References 36 publications

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

Internal stirring: an approach to approximate evaluation of shielding effectiveness of small slotted enclosures

Hybrid model for estimating the shielding effectiveness of metallic enclosures with arbitrary apertures

A New Fault Diagnosis Method of Bearings Based on Structural Feature Selection

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