Electromagnetic wave physiological movement imaging system

Abstract

The invention discloses an electromagnetic wave physiological movement imaging system which comprises a radio-frequency front end module, a direct-current offset compensation module, a phase information extraction module and a physiological movement separation module. The first output end and the second output end of the radio-frequency front end module are connected with the first input end and the second input end of the direct-current offset compensation module respectively, the first output end and the second output end of the direct-current offset compensation module are connected with the first input end and the second input end of the phase information extraction module respectively, the output end of the phase information extraction module is connected with the input end of the physiological movement separation module, and the first output end and the second output end of the physiological movement separation module are connected with the first output end and the second output end of the electromagnetic wave physiological movement imaging system respectively. Compared with the prior art, the electromagnetic wave physiological movement imaging system has the advantages of being low in cost, small in radiological hazard and high in anti-interference performance.

Description

technical field [0001] The invention relates to a motion imaging system, in particular to an electromagnetic wave physiological motion imaging system. Background technique [0002] Medical imaging, also known as medical imaging, is the process by which surgeons diagnose parts of the body that cannot be seen from the outside of the body. In the field of clinical medicine, this technology has an important role and significance in the diagnosis and treatment of diseases. Traditional medical imaging techniques mainly include computed tomography using X-rays and nuclear magnetic resonance. Their common disadvantages include: (1) The cost of equipment is too high, such as the cost of standard nuclear magnetic resonance equipment is on the order of one million yuan; (2) Radiation is harmful to human health and has the risk of carcinogenesis. [0003] In recent years, researchers at home and abroad have made great progress in the study of non-contact heart rate measurement using e...

AI Technical Summary

Problems solved by technology

Their common disadvantages include: (1) The cost of equipment is too high, such as the cost of standard nuclear magnetic resonance equipment is on the order of one million yuan; (2) Radiation is harmful to human health and has the risk of carcinogenesis

However, problems such as the problem of DC offset in the quadrature baseband signal, the range limitation of the arctangent operation, and the influence of respiratory motion on the heartbeat measurement limit the further development of non-contact physiological motion imaging using electromagnetic waves.

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