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Signal analysis method and terminal

A signal analysis method and terminal technology, applied in the direction of impedance network, adaptive network, electrical components, etc., can solve the problems of wrong analysis results, difficult to eliminate interference signals, and inaccurate analysis results, so as to improve signal quality and accuracy , The effect of eliminating interference noise

Active Publication Date: 2015-05-27
SHENZHEN MED LINKET MEDICAL ELECTRONICS CO LTD
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Problems solved by technology

However, when the bandwidth of the filter is wide, it is difficult to eliminate the interference signal in the frequency range of the medical signal, which seriously affects the analysis results of the signal analysis, and even leads to errors in the analysis results
It can be seen that when the current signal analysis method is used to analyze the signal, the analysis result is not accurate enough

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  • Signal analysis method and terminal
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Embodiment Construction

[0025] 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 some of the embodiments of the present invention, but not all of them. 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.

[0026] The embodiment of the present invention discloses a signal analysis method and a terminal; when the target signal is filtered, the center frequency value of the filter can be adaptively adjusted according to the first information value, effectively eliminating interference noise, and improving the target signal after filtering. The signal quality of the signal. Therefore, implementing the embodiments of the present invention can improve the...

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Abstract

The embodiment of the invention discloses a signal analysis method and terminal. The method includes the following steps: acquiring the current first information value of a target signal; adjusting the center frequency value of a filter according to the first information value; using the filter with adjusted center frequency value to filter the target signal; then extracting the feature information value of the filtered target signal; finally analyzing the target signal according to the feature information value. Because the center frequency value of the filter can be adjusted in a self-adaptive manner according to the first information value when the target signal is filtered, the interfering noise can be effectively eliminated, and the signal quality of the target signal after filtering is improved. Therefore, method and the terminal provided by the embodiment of the invention can improve the precision of the analysis result during the signal analysis process.

Description

technical field [0001] The invention relates to the technical field of digital signal analysis, in particular to a signal analysis method and a terminal. Background technique [0002] With the improvement of the analysis methods of medical signals, medical signals are widely used in basic research, clinical diagnosis and rehabilitation engineering. [0003] At present, the analysis method for medical signals is mainly to perform shaping processing on the medical signals first, then filter the medical signals, and finally calculate the eigenvalues ​​of the filtered medical signals, and analyze the information of the medical signals. Because when filtering the medical signal, a filter with a fixed bandwidth is generally used. However, signals collected at different times and states for the same organism may not have strict periodicity. Therefore, this requires the designed filter to have a wider bandwidth, otherwise the important information of the medical signal will be eas...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03H21/00
Inventor 陈斌叶茂林
Owner SHENZHEN MED LINKET MEDICAL ELECTRONICS CO LTD
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