Results 11 to 20 of about 4,504,195 (241)

Dual-satellite Interference Source Localization based on Multi-Beam/TDOA Technology

open access: yesGuangtongxin yanjiu
The single-satellite multi-beam interference source localization method requires more than three co-frequency beams to receive the interference source signal to achieve positioning.
GE Minghao, ZHAO Laiding, ZHANG Gengxin
doaj   +2 more sources

Fractional fourier transform based monopulse radar for combating jamming interference [PDF]

open access: yes, 2010
Monopulse radars are used to track a target that appears in the look direction beam width. The distortion produced when manmade high power interference (jamming).
Elgamel, Sherif A.E.H., Soraghan, J.J.
core   +4 more sources

On the Achievable Rates for the Return-Link of Multi-Beam Satellite Systems Using Successive Interference Cancellation [PDF]

open access: yes, 2011
This paper investigates the theoretically reachable rates in the return-link of multi-user multi-beam satellite systems. The return-link can actually be analyzed by means of multiple-input multiple-output signal processing techniques. While MIMO inspired
Michael Joham   +7 more
core   +1 more source

Multi-beam adaptive base-station antennas for cellular land mobile radio systems [PDF]

open access: yes, 1989
This paper addresses the problem of meeting the proliferating demands for mobile telephony within the confinements of the limited radio spectrum allocated to these services.
Swales, SC   +3 more
core   +1 more source

Time Interference Alignment via Delay Offset for Long Delay Networks [PDF]

open access: yes, 2011
The potential of Time Interference Alignment is investigated in this work, with particular reference to the attainable degrees of freedom. The K-user interference channel is considered, in which transmitters and receivers are placed randomly in a ...
Francisco Lázaro Blasco   +7 more
core   +1 more source

Excitation of Multi-Beam Interference and Whispering-Gallery Mode in Silica Taper-Assisted Polymer Microspheres for Refractometric Sensing

open access: yesPhotonics, 2021
We propose and numerically analyze a fiber-optic sensor based on a silica taper-assisted multiple polymer microspheres to realize high-sensitivity refractometric sensing due to the excitation of multi-beam interference and whispering-gallery modes (WGMs)
Huibo Fan   +5 more
doaj   +1 more source

Improving multi access interference suppression in optical CDMA by using all-optical signal processing [PDF]

open access: yes, 2013
This paper presents the study of a novel alloptical method for processing optical CDMA signals towards improving suppression of multi access interference.
Glesk, Ivan   +5 more
core   +4 more sources

Signal processing in passive radar with multi-user MIMO-OFDM signal

open access: yesEURASIP Journal on Advances in Signal Processing, 2022
In this paper, we propose a signal processing method in passive radar using the multi-user (MU) multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) signal as the illuminator of opportunity.
Xiaoyong Lyu, Baojin Liu, Wenbing Fan
doaj   +1 more source

Cell Partitioning Antenna System Performance in Multi-User Scenarios for mmWave Communications

open access: yesIEEE Access, 2021
Fixed-beam, high-gain antenna systems can be used for a finer partitioning of the currently used cell-sectoring. This partitioning has the benefit of reducing the number of users seen per antenna beam, which reduces interference.
Thomas A. H. Bressner   +7 more
doaj   +1 more source

Beam Discovery Signal-Based Beam Selection in Millimeter Wave Heterogeneous Networks

open access: yesIEEE Access, 2018
Most beam selection algorithms determine the best beam according to the methods of feedback and exhaustive search in a millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) system.
Bo Yin   +4 more
doaj   +1 more source

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