A Review of Quantitative Evaluation of Electromagnetic Environmental Effects: Research Progress and Trend Analysis

Abstract

With the increasing complexity of the electromagnetic environment, existing electronic systems and various equipment are greatly threatened. The study of the assessment of the effects of the electromagnetic environment has attracted more and more attention in the academic field and industry. In this review, the definition of the electromagnetic environmental effects assessment could be classified into two categories: objective and subjective equipment electromagnetic environmental effect assessments. Studies on both are comprehensively reviewed. The electromagnetic environmental effect assessment models are described and analyzed. The effects evaluation models mainly calculate the electromagnetic environmental effect index by various weighting, probability, and normalized interference level methods. However, each proposed model has certain limitations, so it cannot deal with all the electromagnetic interference effects. Therefore, a comprehensive evaluation model for complex electromagnetic environmental effects has not yet been established. Recent studies have shown that neural networks can be used to improve the adaptability of evaluation models in electromagnetic environments. The evaluation result of the normalized interference level method is more consistent with the actual work efficiency. The combination of the two can unify the objective and subjective assessments, which is of great significance to the improvement of the consistency and accuracy of the results of the effects evaluation of the electromagnetic environment. Accordingly, challenges for future research are revealed, which plays a vital role in the development of electromagnetic environmental effects research and provides a reference for researchers.

Theoretical study on Stark effect of Rydberg atom in super low frequency electric field measurement

“…As an important electrical parameter of the power system, the electric field signals contain information about the operation of lines and electrical equipment. The electric field measurement is widely used in electrical equipment insulation status assessment [1,2], power system electromagnetic environment assessment [3,4], lightning warning [5,6] and other occasions. Traditional electric field sensors based on electrical and optical principles face insurmountable limitations in the optimisation of measurement sensitivity, accuracy, operating bandwidth, and miniaturisation.…”