Interference signal processing method and device, and medical detection device

A technology for interfering signals and original signals, applied in the field of medical electronics, can solve the problems of signal distortion, the ringing effect of the notch filter, and the inability to meet the use requirements, and achieve the effect of avoiding ringing and ensuring stability.
CN105099573AActive Publication Date: 2015-11-25SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
Publication Date
2015-11-25

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Abstract

An interference signal processing device comprises a component generator, an interference estimator, a first difference device and a first summator, wherein the component generator is used for outputting an alternating current component X' and a direct current component B of a sampling signal X; the interference estimator is used for estimating an interface signal N0 at present according to a gain adjustment function; the first difference device is used for generating an original signal alternating current component Y' according to the difference between the alternating current component X' and the interface signal N0; and the first summator is used for generating an original signal Y according to the sum of the original signal alternating current component Y' and the direct current component B. The invention further provides an interference signal processing method and a medical detection device provided with the interference signal processing device.
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Description

technical field

[0001] The invention relates to the field of medical electronics, in particular to an interference signal processing method, device and medical detection equipment. Background technique

[0002] During the signal acquisition process, due to power frequency and other factors, the signal will be interfered by fixed frequency noise. Signal display analysis systems (including but not limited to electrocardiographs, monitors, etc.) often need to remove fixed-frequency noise from the signals in order to ensure the accuracy of the analysis results when analyzing the dynamic changes of the collected signals. The existing implementation scheme is to use the IIR notch filter to remove the fixed frequency noise of the collected signal, but the notch filter will cause ringing effect in the process of processing, and also cause signal distortion, which cannot meet the requirements of use. Contents of the invention

[0003] In view of the above problems, the object of...

Claims

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