نتایج جستجو برای: single frequency receiver
تعداد نتایج: 1340589 فیلتر نتایج به سال:
The paper deals with the numerical and experimental development of single stage radio frequency (RF) amplifier with high gain for 2.4GHz receiver front-ends. The work is motivated by the increasing demand of high-gain receiver amplifier in low-cost especially for wireless local area network (WLAN) application. Prior hardware realization and experimental characterization, the proposed amplifier ...
In this work, we exploit the SVD assisted multiuser transmitter (MUT) and multiuser detector (MUD) technique, using downlink (DL) preprocessing transmitter and DL postprocessing receiver matrice .In combination with space frequency block coding (SFBC). And also propose the precoded DL transmission scheme, were the both proposed schemes take advantage of the channel state information (CSI) of al...
In this paper, we propose the receiver structure for Multiple Input Multiple Output (MIMO) Interleaved Single Carrier-Frequency Division Multiple Access (SC-FDMA) where the Frequency Domain Equalization (FDE) is firstly done for obtaining the tentative decision results and secondly using them the Inter-Symbol Interference (ISI) is cancelled by ISI canceller and then the Maximum Likelihood Detec...
As Global Navigation Satellite System continues to upgrade, there will be an increasing number of satellites and signals. This offers users benefits such as increased availability and improved diversity of signal. For safetyof-life users like aviation, higher availability of integrity is the key goal. A technology providing integrity with little or no ground infrastructure overhead is receiver ...
Abstract—The performance of the single-carrier (SC) transmission in a frequency-selective fading channel degrades due to a severe inter-symbol interference (ISI). By using frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion at a receiver, the bit error rate (BER) performance of the SC transmission can be significantly improved. Recently, Tomlinson-Harashi...
In this work the performance of different receivers for single-carrier frequency division multiple access (SC-FDMA) transmission over frequency-selective fading channels is investigated. The receiver design is done for a single-user multiple-input multiple-output (MIMO) system. Linear equalization in frequency domain according to the minimum mean-squared error (MMSE) criterion is compared to jo...
A low signal to noise ratio (SNR), single source/receiver, broadband, frequency-coherent matched-field inversion procedure recently has been proposed. It exploits coherently repeated transmissions to improve estimation of the geoacoustic parameters. The long observation time improves the SNR and creates a synthetic aperture due to relative source-receiver motion. To model constant velocity sour...
Fully integrated imaging receivers present a method of low power free-space optical communication with advantages over radio frequency and single element optical communication for a variety of network scenarios. This paper discusses the theoretical performance of such receivers and the design of a single “smart pixel” for use in a 2.5 Mbps integrated CMOS imaging receiver. The receiver has a si...
The purpose of this paper is to show through laboratory results, the performance of the new DLIF (Double Low-IF) receiver architecture. This new approach minimizes the receiver’s cost by eliminating the need for RF image-reject and IF-Saw channel filters, avoids some of the shortcomings of direct conversion and single Low-IF methods and can be applied in GSM-like mobile stations. Performance re...
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