FIELD: medicine.
SUBSTANCE: group of inventions relates to medicine, namely to the system of radio frequency research of a biological object and the method of radio frequency research of a biological object. The system of radio frequency investigation of a biological object includes a data processing unit connected to a broadband receiving and transmitting antenna array designed to scan a biological object by means of probing pulses of microwave radiation in the range of 300-800 MHz, with the form of a Gaussian monocycle, with an instantaneous band of 500 MHz and with a duration of less than 1 ns. The data processing unit is designed with the possibility of receiving responses in the form of responses signals received by the antenna array from a room without a bio-object and from a room with a bio-object. The processing unit is designed with the possibility of subtracting the received response signals, followed by converting the resulting difference into a frequency spectrum using a fast Fourier transform. In the method for primary calibration of the system, the response from an ultrashort pulse is measured, and irradiation is performed with a spectrum in the range of 300-800 MHz in the time domain of a room without a biological object. Also in the method, the response from the same ultrashort pulse is measured in the same room with a frontal the direction of irradiation of a biological object located inside the room. Also in the method, the received responses are received and stored from a room without a bio-object and from a room with a bio-object placed in front of a broadband receiving and transmitting antenna array within its radiation pattern. Then, through the data processing unit of the system, the received responses are converted into matrices 
- the response received in a room without a bio-object 
- the response received in a room with a bio-object. Then in the method, the matrix is subtracted from the response matrix received in a room with a bio-object 
The response received in a room without a biological object is obtained and the response matrix of the biological object is obtained: which is converted into a frequency spectrum
using a fast Fourier transform, where S1, S2,…Sn - spectra are the spectral densities of individual organs of the biological object.
EFFECT: technical result of the present invention consists in obtaining data on the radio frequency spectrum of a biological object in real time.
2 cl, 4 dwg
