Breast tumor characteristic signal extraction method for ultra wide band microwave detection

Abstract

The invention belongs to the technical field of biomedical detection, and relates to a breast tumor characteristic signal extraction method for ultra wide band microwave detection. The method comprises the steps that a linear antenna array is distributed on a center line of a zone to be detected on the surface of breast skin, all antennae are tightly clung to the surface layer of skin, the linear antenna array is taken as a reference position, 30 groups of tumor detection signals are obtained, namely six groups of 'one-sending and five-receiving' signals are obtained, and scattered signals obtained at the moment are equivalent to reference signals; the antenna array is translated repeatedly from the reference position to two sides at equal intervals along the direction perpendicular to the length direction of the linear antennae, so as to respectively obtain 30 groups of scattered signals including tumor information inside a breast in different interval positions; and tumor detection signals obtained by the antenna array in the positions are respectively subtracted from detection signals corresponding to the reference position, so as to obtain tumor scattered signals. By adopting the method, tumor scattered characteristic signals can be effectively extracted.

Description

Technical field [0001] The invention belongs to the technical field of biomedical detection, and relates to a method for extracting characteristic signals of breast tumors. Background technique [0002] Breast cancer is the malignant tumor disease with the highest incidence rate in women, and its mortality rate ranks first in the mortality rate of malignant tumors in women. The diagnosis of early breast tumors is undoubtedly of decisive significance for improving the treatment rate of breast disease and the long-term survival rate of patients. Currently commonly used detection methods for early breast cancer include mammography, ultrasound imaging technology, computed tomography, nuclear magnetic resonance imaging technology, thermal imaging detection, etc., but many methods have certain shortcomings, such as radiation damage to the human body, The imaging contrast is low and the cost is high. The principle of ultra-broadband electromagnetic wave detection of breast cancer...

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Problems solved by technology

However, in the clinical detection process, it is impossible to obtain the microwave detection signal when there is no tumor, so how to effectively extract the...

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