A Multiple Harmonic Adaptive Separation Method for Ultrasonic Echo Signals
A technology of multiple harmonics and echo signals, which is applied in the use of sound waves/ultrasonic waves/infrasonic waves to analyze solids, use sound waves/ultrasonic waves/infrasonic waves for material analysis, and analyze materials. Wave Adaptive Separation Methods and Other Issues
Active Publication Date: 2021-07-02
YUNNAN UNIV
View PDF8 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] After searching the literature, no public reports related to the multi-harmonic adaptive separation method of the ultrasonic echo signal identical to the technical solution of the present invention have been found
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0026] Combine below figure 2 The present invention is described in further detail with examples.
[0027] Taking the measurement of liver tissue as an example, the specific implementation steps of the present invention include:
[0028] 1) Collect and store the ultrasound echo signals of the liver tissue. Put the liver tissue flat on the measuring table, use the ultrasonic transducer to scan the tissue stably and accurately, transmit and receive the ultrasonic echo signal carrying the fundamental wave and each harmonic information returned from the tissue, according to the standardization The process of ultrasound imaging forms the original B-ultrasound image 1 . Use an open ultrasonic testing system to store radio frequency echo signals for subsequent signal analysis;
[0029] 2) The method of the present invention needs to process each line of the radio frequency signal before integrating, and the processing method for each line is the same. Choose the process of stand...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a multi-harmonic self-adaptive separation method of ultrasonic echo signals, which collects and stores ultrasonic radio frequency echo signals of tissues, calculates the frequency spectrum of each scanning line data in the signal, and obtains the frequency spectrum curve and each local peak frequency component Component; decompose the single-mode signal to obtain the corresponding signal component, according to the frequency corresponding to the component energy peak, divide it into fundamental wave, each harmonic component and other signal components, and superimpose correspondingly; if the frequency component contains more than one component, Then classify it into the signal component that needs to be decomposed again; perform single-mode signal decomposition on the signal component that needs to be decomposed again, and judge the decomposition result until the signal is decomposed into only the fundamental wave or each harmonic component. Components, each division result is integrated and imaged separately, and the B-ultrasound images corresponding to the fundamental wave and each harmonic are obtained. The invention can self-adaptively and accurately extract each harmonic wave from the ultrasonic echo signal, and provides a reliable technical means for tissue harmonic imaging diagnosis.
Description
Technical field: [0001] The invention belongs to the technical field of harmonic detection, and in particular relates to a multi-harmonic self-adaptive separation method of ultrasonic echo signals. Background technique: [0002] Tissue harmonic imaging refers to the technology of receiving and utilizing the harmonic information generated by the nonlinear propagation of ultrasound for imaging. It is a major breakthrough in the field of ultrasound nonlinearity developed in recent years. It improves the signal-to-noise ratio and quality of the image, and has great advantages in eliminating artifacts and sidelobe interference. Due to the improvement of tissue imaging performance, the scope and level of clinical diagnosis of many diseases have been expanded and improved. In addition, ultrasound contrast agents can excite sub-harmonic and super-harmonic waves under the action of ultrasound, and sub-harmonic and super-harmonic waves have better tissue ratio than fundamental and se...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01N29/04G01N29/26
Inventor 韩素雅张榆锋李支尧梁虹张俊华李海燕
Owner YUNNAN UNIV