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.
In order to ensure the data rate, ship detection within short coherent integration time (CIT) is an operational requirement for over-the-horizon radar (OTHR). However, the resulting low Doppler resolution of short CIT brings difficulties in discrimination of the ship target peak and the powerful ocean clutter. To solve this problem, high resolution spectrum estimation techniques have been used to...
Both size and distribution of oil mist droplet diameter are important factors for weighing atomized quality of oil mist in lubrication. However, because of the peculiarity of oil mist droplet, it is difficult to obtain its exact dimension. This article selects laser particle sizer which is based on the scattering theory of light to measure size and its distribution of oil mist droplet diameter. At...
Inverse synthetic aperture radar (ISAR) imaging of multiple warhead targets in the same antenna beam is a big challenge when they are overlapping in the same range bin. Existing methods are usually based on single target motion compensation and they can't get clear ISAR image of multiple targets. This paper presents a new algorithm for ISAR imaging of multiple targets based on Fractional Fourier Transform...
In this paper, the specular reflection multipath model is discussed in detail. The conception of the product factor, which is based on the relationship between the direct signal and indirect signal in the meter-wave radar received signals, is presented in this paper. A simple function of the product factor and the signal arrival angles including the direct angle and indirect angle considering the...
The influence of lanthanum ions on the polymorphic phase of egg phosphatidylethanolamine and dielaidoylphosphatidylethanolamine (PE and DEPE) has been investigated by means of 31 P-nuclear magnetic resonance ( 31 P-NMR) and high sensitivity differential scanning calorimetry (DSC) techniques. 31 P-NMR experiments show that lanthanum ions promote the formation...
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.