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.
Forward scattering always occurs when an intruder moves into an underwater area between a source and a receiver. The detection of this forward-scattered signal is a challenge because a strong direct blast overwhelms the forward-scattered signal. The key for the detection is to suppress the direct blast and extract the aberration from the background acoustic field. Two schemes of the detection are...
When an object crosses the source-receiver line, a weak acoustic field aberration would be generated. However, it is often overwhelmed by strong direct blast. A lake experiment with a vertical receiver array spanning along water column was designed and conducted, with a 10 kHz pulse. The interested signal was the aberration caused by the forward scattering of a submerged object. The acoustic field...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.