Near-Field Scan of Multiple Noncorrelated Sources using Blind Source Separation

Abstract

A method for separation of the field contributions generated by multiple noncorrelated sources is proposed. The measurements are implemented using one scanning probe and one (or more) stationary reference probe, avoiding the requirement to measure the spatial correlations of the random fields. The contribution of each source can be determined with the assistance of the blind source separation technique. Averaging over realizations allows to cancel the uncorrelated part in the mixed signal measured by the scanning probe. The separated results can be used to localize the emission sources and their contribution to the field pattern. The method was tested on different signals with amplitude and frequency modulation with passive (antenna) and active (IC) sources.

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Intelligent Systems Center

Comments

National Science Foundation, Grant IIP-1916535

Keywords and Phrases

Blind Source Separation (BSS); Electromagnetic Interference (EMI); Modulated Signals; Near Field Scan (NFS); Phase Resolving; Random Fields

International Standard Serial Number (ISSN)

0018-9375; 1558-187X

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2020 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

25 May 2020

Link to Full Text

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