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.
A passive synthetic array (PSA) using a single moving sensor is formed to estimate direction of arrival (DOA). And co-prime array is used to form a virtual L-array. The impact of the passive synthetic aperture on the DOA estimation under different conditions is simulated and analyzed. Numerical simulations show that the initial time error has no obvious effect on the DOA estimation in the condition...
In this paper, minimum redundancy multiple-input multiple-output (MR-MIMO) arrays - a class of thinned antenna arrays - are discussed. The concepts of MR-MIMO array design and almost difference sets (ADSs) are introduced, and an analytical method based on ADSs is proposed for MR-MIMO array designs. This method can quickly determine the locations of MR-MIMO arrays and require little computational cost...
In this paper, the antenna array design problem in minimum redundancy MIMO radars is addressed, which seeks to maximize the virtual array aperture for a given number of transmitting and receiving (Tx/Rx) elements. A hybrid optimization method combining cyclic difference sets (CDSs) with simulated annealing (SA) is proposed for the optimal design of Tx/Rx antenna arrays. Numerical results are also...
Aperture synthesis technique is a feasible means to provide high spatial resolution at low frequencies. But due to the impacts of system errors, time varying scenes, and different inversion algorithms, analytic studies of system performances are difficult or impossible, and the need of numerical simulation appears. In this paper, a signal-level simulator is presented. It covers brightness temperature...
In order to meet the spatial resolution requirement of passive microwave remote sensing from space, aperture synthesis radiometer is used. An antenna array is an important part in synthetic aperture radiometer. A Sparse Antenna Array with Parabolic Cylinder Reflector at Millimeter Wave Band is presented in this paper. The overall requirements for antenna array are listed, followed by design and characterization...
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.