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.
Modern radio front ends are required to operate over diverse channel conditions requiring the incorporation of significant performance overheads into their design. This results in significantly higher power consumption over most of the operational period since the worst case channels are not statistically prevalent. Adaptive systems solve this problem by adapting the performance and power consumption...
In this paper, switch-and-stay combining (SSC) is considered in two-way relay systems with amplify-and-forward (AF) relays, among which one is activated to assist the information exchange between two sources. We assume that the two-way relay system operates in the analog network coding (ANC) protocol where the communication can only be achieved through the active relay without the direct link. The...
In this paper, a higher than Nyquist RF test waveform synthesizer with digital phase noise injection is proposed. The proposed system uses time-interleaved digital-to-analog converters (DACs) and associated digital signal processing algorithms to enhance the spectral image of the synthesized waveform in the high-order Nyquist zones by increasing the effective sampling rate and eliminating unwanted...
Multi-domain signal filtering is a perspective technology in both radar and wireless communication systems. To obtain extra benefits compared with conventional methods, a novel joint space-frequency-polarization filter (SFPF) based on vector sensitive array (VSA) is presented in this paper. An orthogonal dual-polarization sensitive array (DPSA) and time delay units are applied to offer frequency,...
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.