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.
Phased array antennas with a desired symmetric scan range about broadside usually are designed with array elements that have a corresponding symmetry. However, this appears to be unnecessarily restrictive. We 1) show that symmetric scan performance normally is maintained even with asymmetric array elements, and 2) compare conventional, symmetric patches with asymmetric patches, which have no E-plane...
This paper describes mixed constrained image filter design with fault tolerant using Genetic Algorithm (GA) on a reconfigurable processing array. There may be some faulty Configurable Logic Blocks (CLBs) in a reconfigurable processing array at random. The proposed method with GA autonomously synthesizes a filter fitted to the reconfigurable device with some faults, evaluating the complexity, power...
Presently most wide band array elements are complicated 3-dimensional structures which are difficult and costly to manufacture. Therefore we explore planar patch elements which offer a simplified geometry with potentially reduced weight and cost and are suitable for conformal applications. We use a genetic algorithm to design a patch element in a unit cell of an infinite periodic array and model the...
Generally, impulse noise filtering schemes consider all pixels within a large neighborhood. However, the estimate from all pixels within the neighborhood may not be accurate. Moreover, large window may remove edges and fine details. In contrast to this approach, we propose iterative impulse noise removal scheme that emphasizes on few noise-free pixels within a small neighborhood. This iterative process...
Microarray technology has emerged as one of the robust methodology for quantitatively analyzing gene expressions of thousands of genes simultaneously. The experimental design, image processing and data analysis are the three major stages of microarray based analysis. The main goal of array image processing is, to measure the intensity of the spots and quantify the gene expression values based on these...
To solve the general problems of genetic algorithms applied in stereo matching, two measures are proposed. Firstly, the strategy of the simplified population-based incremental learning (PBIL) is adopted to decrease the problems in memory consumption and searching inefficiency, as well as a scheme controlling the distance of neighbors for disparity smoothness is inserted to obtain a wide-area consistency...
Hyperspectral imagery (HSI) data has proven useful for discriminating targets, however the relatively slow speed at which HSI data is gathered for an entire frame reduces the usefulness of fusing this information with panchromatic video. Additionally, the volume of HSI information collected affects the computational performance of software exploiting the information. Paradoxically, it is too much...
Two-dimensional code is a new and developing code which has gradually entered people's life. In foreign countries, one-dimensional barcode has been replaced with two-dimensional code in many respects: such as ID card, driver's license, military certificate, etc. But it is not so extensive to use two-dimensional code in China. However, with the development of information technology, the use of two-dimensional...
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.