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Interference signal processing method, device and medical detection equipment

A technology of interference signal and original signal, which is applied in the field of medical electronics, can solve problems such as notch ringing effect and signal distortion, and achieve the effect of avoiding ringing and ensuring stability

Active Publication Date: 2018-10-26
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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Problems solved by technology

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, which will also cause signal distortion and cannot meet the requirements.

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  • Interference signal processing method, device and medical detection equipment
  • Interference signal processing method, device and medical detection equipment
  • Interference signal processing method, device and medical detection equipment

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Embodiment Construction

[0059] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0060] see figure 1 and figure 2 , figure 1 is a schematic diagram of the interference signal processing device provided by the first embodiment of the present invention. In the embodiment of the present invention, the interference signal processing device 100 includes a component generator 110, an interference estimator 120, a first differencer 130, and a first summer 140, wherein the output terminal of the component generator 110 Connect the input end of...

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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.

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, which will also cause signal distortion and cannot meet the requirements. [0003] meet the requirements of use. Contents of the invention [0004] In view o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B15/00H03G3/20
Inventor 王沛叶文宇罗申关则宏洪俊标程晓文叶志刚
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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