Differential Electric Field Tomography
| Autor: | S. A. Sapetskii, P. A. Kobrisev, A. V. Korzhenevskii, T. S. Tuykin |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
010302 applied physics
Electromagnetic field Physics Radiation Observational error Computer simulation Acoustics 020206 networking & telecommunications 02 engineering and technology Condensed Matter Physics 01 natural sciences Signal Electronic Optical and Magnetic Materials Convolution Amplitude Electric field 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Tomography Electrical and Electronic Engineering |
| Zdroj: | Journal of Communications Technology and Electronics. 65:645-650 |
| ISSN: | 1555-6557 1064-2269 |
| DOI: | 10.1134/s1064226920060170 |
| Popis: | —The article considers electric field tomography, which has some unique properties. A solution is proposed to the problem of detecting the useful signal when a studied object interacts with an electromagnetic field, which is due to the high measurement error associated with variation in the capacitances of the electrodes and the object with respect to the ground. Numerical simulation is used to demonstrate the feasibility of differential excitations of measurements, which can significantly reduce the error and increase the noise immunity of the system. It is shown that a system of eight electrodes is sufficient for reconstructing the image by convolution and back projection. In this case, phase measurements can be used, similarly to unipolar electric field tomography, and, in some cases, amplitude measurements. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink