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 this paper, we introduce a procedure for the null broadening algorithm design with respect to the perturbation of the interference location. This method is based on maximizing the array output signal-to-interference-plus-noise-ratio (SINR) subject to quadratic constraints. The design problem can be cast as a fractional quadratically constrained quadratic programming (QCQP) problem that can be solved...
A robust colored-loading factor optimization approach referred to as LWEC is newly proposed for colored-loading knowledge-aided STAP. The colored-loading factor is optimized to maximize the whitening ability of the colored-loaded clutter-and-noise covariance matrix (CNCM) of the cell under test (CUT) on selected secondary samples. The proposed approach is robust to accuracy degree heterogeneity of...
The sidelobe canceller (SLC) is widely used for the array processing to suppress interferences located in the sidelobe of the radiation pattern. In the presence of steering vector mismatch, the performance of SLC may suffer from severe degradation due to desired components cancellation. In this paper, a modified approach is developed to improve the robustness against the direction of arrival (DOA)...
This paper addresses the problem of radio frequency interference (RFI) in high-frequency (HF) radar. An efficient scheme is proposed for RFI suppression by designing receive filter in fast time domain for pulse compression. Throughout the implementation in observation data, this scheme does not need any training data. Instead, it uses the temporal data which is recovered after sea-clutter mitigation...
Multi-Input and Multi-Output (MIMO) radar was a new radar technology in the recent years, which used spatial diversity gain of the signal instead of coherent gain in traditional phased-array radar. Using the ideal point source model, this paper made an analysis of these two kind gain's contribution to radar detection system, which was divided into two classes: the contribution to system robustness...
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.