A robust adaptive beamforming method is proposed in this paper for uniform linear arrays with respect to sensor eco balloons gain and phase uncertainties.The sensor gain and phase parameters are obtained by solving a series of linear equations that describe the specific structure of the array covariance matrix for a uniform linear array.Partly cali
High intensity focused ultrasound (HIFU) is a noninvasive treatment technique to induce thermal or mechanical bioeffects.Characterising the wave field is essential for reliable and reproducible transducer operation in clinical use.This paper presents a schlieren technique to visualise and quantify transducer wave fields.The technique blue superhero
An identification trademark, which is a bar code bearing product data, whether industrial products, works of art, or maps.Good information can be obtained through analysis, and the beauty of flexible salamander chameleon data security, through the codes consisting of a group of parallel longitudinal lines of different thicknesses with different spa
An identification trademark, which is a bar code bearing product data, whether industrial products, works of art, or maps.Good information can be obtained through analysis, and the beauty of flexible salamander chameleon data security, through the codes consisting of a group of parallel longitudinal lines of different thicknesses with different spa