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.
Aiming at the calculation problem of chaff preparing of mix-packed in a chaff bag, the new method of chaff preparing is bright forward. According to the chaff characteristic of frequency response, the model of single chaff RCS is established. The method can effectively achieve Chaff suppressive Jamming on all frequency, when considering radar countermeasure Intelligence.
With the development and widespread application of multimedia and network technologies, the protection of multimedia contents such as image, audio, and video becomes an urgent problem. As the powerful tool for copyright protection and authentication, digital watermark technology has gained wide attention and development. The principle of digital watermark technology is briefly introduced in this paper,...
In modern air-wars, aeroplanes use passive chaff jamming largely, which has already threatened the capability of radars in battlefield. Using netted radar to collect data, the initial echo signals can be achieved. Because of the correlations among waveforms of aeroplane echo signals and irrelevance among chaff echo signals, the netted radar anti-chaff-jamming method of using K-L transform based on...
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.