Self-adaption ultrasonic beamforming method and system based on channel data

A channel data, ultrasonic technology, applied in the direction of ultrasonic/sonic/infrasonic wave diagnosis, acoustic wave diagnosis, infrasonic wave diagnosis, etc., can solve the problem that signal sidelobe, noise and strong reflection signal cannot be completely eliminated, signal sidelobe and electronic noise cannot be completely eliminated , It is impossible to remove noise and unwanted signals, etc., to achieve good signal detection effect, improve noise removal efficiency, and suppress signal effects
CN107789008AActive Publication Date: 2018-03-13SASET CHENGDU TECH LTD
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
SASET CHENGDU TECH LTD
Publication Date
2018-03-13

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Abstract

The invention discloses a self-adaption ultrasonic beamforming method and system based on channel data. Unwished sidelobes can be removed, noise generated by the channel data can be stored, and the removing efficiency is high. The method comprises the steps of conducting multiple times of ultrasonic emission, and obtaining first channel data according to corresponding multiple echo signals; obtaining time delay data corresponding to each focus point; regarding each focus point, applying the corresponding time delay to the first channel data to obtain vector data; conducting discrete time-frequency transformation on one or multiple vectors in the vector data to generate frequency domain signals; conducting inverse transformation on each vector in the frequency domain signals which are subjected to noise suppression to obtain second channel data; conducting beamforming on the obtained second channel data; conducting signal demodulation, envelope detection, scanning conversion and image postprocessing on signals which are subjected to beamforming in sequence to generate a frame of image.
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Description

technical field

[0001] The invention relates to the technical field of ultrasonic imaging, in particular to an adaptive ultrasonic beam synthesis method and system based on channel data. Background technique

[0002] In the medical ultrasound imaging system, from the ultrasound probe to the final display of the image, it must go through the transmission and reception circuit, analog signal to digital signal conversion, beam synthesis, signal baseband processing, digital scan converter and image post-processing and other links. Among them, the beamforming quality of the ultrasound imaging system has a crucial impact on the final imaging effect. The main processing methods of beamforming channel data include traditional hardware beamforming and software beamforming emerging with the development of general-purpose processor capabilities. The related technologies involved include electronic focusing and scan line control, apodization, variable aperture, etc. Whether it is hardw...

Claims

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