Design And Implementation Of Ultrasound Imaging System Based On Compressed Sensing

Ghost imaging technology,also known as quantum imaging,is a new type of imaging,whose structure is simple,the ability of anti-interference is strong and resolution is relatively high.The general principle of the ghost imaging technique is to divide the light emitted by the same light source into two beams of light.One beam of light illuminates the target object and then is detected by a detector without a spatial resolution,the other one is directly to the high-resolution camera,and then correlation operations is performed on those detection date to get clearest image.The detection data of the road can be obtained by performing correlation operations.In order to get the most clear image,multiple samples need to be sampled,resulting in a large amount of data being sampled.The application of compressed sensing theory to ghost imaging technology can effectively reduce the amount of data collected while ensuring the image quality of the image.Therefore,the ghost imaging technology combined with compressed sensing theory,makes the advantage of high resolution of ghost imaging is more significant.In view of the advantages of ghost imaging technology,some people apply the principle of ghost imaging technology and compressed sensing theory to the field of ultrasonic imaging,and propose ultrasonic imaging theory based on compressed sensing,as well as some proof and simulation of the theory has been done.In order to achieve this theory,this paper makes a brief expansion of single pixel camera technology,ghost imaging technology,compressed sensing theory and some acoustics common sense,and makes a brief analysis on the theory of compressed sensing based ultrasound imaging.An ultrasonic imaging system was designed to switch the array of ultrasonic signals.The overall architecture of the system,and the system involved in a number of technologies and devices are described.In the design,the ultrasonic switch modulation array is made by using piezoelectric ceramics with piezoelectric effect,and the signal transmission and reception circuit is constructed by signal generator,operational amplifier,analog switch array,analog-to-digitalconverter,FPGA,USB3.0,MCU,thus forming a set of piezoelectric ceramic-based ultrasound imaging system.The system realizes the ultrasonic modulation of the modulation and transmission.Besides,it realizes signal single point acquisition and transmission.Finally,the function of the system is verified by the underwater experiment.The results show that the system is realized by the host computer control of the ultrasonic switch modulation and ultrasonic signal single point acquisition and data preservation.Through the underwater experiment,the corresponding image is obtained.