Radio-Wave Tomography of Inhomogeneities in Biological Media with Multi-Frequency Sounding in the Range 2-8 GHZ

The paper shows the method for detecting and mapping inhomogeneities in biological tissues with using the radio-wave tomosynthesis. The method of radio-wave tomosynthesis allows calculating a three-dimensional distribution of permittivity in a studying space. The distribution gives the opportunity to determine tissue inhomogeneities, also their location and size. This method is suitable for dynamic observation of changes in education size due to harmlessness to humans. Unlike X-ray methods, for which regular doses of ionizing radiation contraindicated. Therefore, the development of non-invasive methods for the search for inhomogeneities in biological media based on radio-wave sounding is very relevant.

Detection of inhomogeneities in biological tissues using radio wave tomography

Eremeev

Shipilov

2019

Statistical study of accuracy of the video-positioning system for GPR

Khmelev

Fomynikh

2021

Here we present results of the statistical study of the accuracy of the local optical positioning system for the industrial GPR OKO-2. The results of measurement are forming a statistical set. The statistical set should verify the accuracy LPS. The proposed LPS uses special tapes with a special periodic pattern as a reference object. The video camera records the image of the marker tapes, was located on a fast mechanical scanner. The scanner produced an accurate movement of the camera perpendicular to the tape. During the moving process, LPS measures the distance between the camera and tape and compared it with the scanner data.

Application of the migration method for radiotomography of breast cancer

Eremeev

Vasin

Satarov

et al. 2021

A new method to visualize microwave image is presented to early non-invasive detection of breast cancer tumors. A new processing method to compute microwave images of heterogeneity in a biological environment is described here, as well as a new algorithm for accelerating the calculation of three-dimensional radio images. Sounding of synthetic phantoms with dielectric properties of breast tissue was carried out in the range of 2–8 GHz using a special radar system developed by the authors. Results show that it is possible to use this microwave imaging method to form 3D accurate images using hemispherical scan Images of tumor phantoms were obtained during probing in the 2–8 GHz range with a resolution of about 5–7 mm. According to the results of the reconstruction of three-dimensional radio images, it was revealed that the calculation time can be reduced by at least 2 times with an insignificant loss of quality.