The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Via a simple algorithm given by the Born approximation one can reconstruct a tomographic image of the sound speed of an acoustically penetrable body, knowing its scattered sound field. This method is based on the hypothesis of weak contrast between the body and the external medium. Otherwise the image is a distorted version of the object. The distortion is characterised analytically. Thus we propose...