Methods for target motion identifying at medical radar construction

Authors

  • Жанна Миколаївна Хоменко Zhytomyr State Technological University Chernyakhovskogo 103, Zhytomyr, 10005, Ukraine

DOI:

https://doi.org/10.15587/1729-4061.2012.6010

Keywords:

radar, bioradiolocation, breathing, heartbeat

Abstract

Despite a number of publications concerning the use of different fields and types of radars for the study of human tissue, there is considerable uncertainty as to what is actually measured, and which frequencies are the best for heartbeat and breathing monitoring. Most of the experiments described were conducted in laboratory conditions. Therefore, the actual bioengineering problem is the research and development of the radar-reflection methods of remote sensing of slight displacements of biological structures, such as breathing and heartbeat.

A peculiarity of bioradiolocation is that the observed objects (heart and human chest) usually move reciprocally.

With the variety of local objects, reflections of a probing signal get to the radar receiver. They interfere these objects and do not allow the identification of their position in space.

The results of the experiments show that the use one quadrature registration scheme of the received signal does not permit to separate the picture of cardiac activity from the reciprocal motion of the chest, whose amplitude exceeds the amplitude of the heartbeat.

The article suggests an analytical method of restoration of the motion trajectory of an object according to two quadratures of the phase receiver, which works in a variety of local objects.

The combination of two quadratures of the phase receiver of the radar with their previous differentiation and subsequent arctangent-demodulation provides an actual trajectory of the object motion, necessary for further analysis of the frequency and nature of this movement

Author Biography

Жанна Миколаївна Хоменко, Zhytomyr State Technological University Chernyakhovskogo 103, Zhytomyr, 10005

Assistant

Department of Radio Engineering and Telecommunications

References

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Published

2012-12-25

How to Cite

Хоменко, Ж. М. (2012). Methods for target motion identifying at medical radar construction. Eastern-European Journal of Enterprise Technologies, 6(11(60), 56–59. https://doi.org/10.15587/1729-4061.2012.6010

Issue

Vol. 6 No. 11(60) (2012): Radio engineering information tools

Section

Radio engineering information tools

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Copyright (c) 2014 Жанна Миколаївна Хоменко

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