Results 71 to 80 of about 772 (178)
Remote SensingFrequency Diverse Array Multiple-Input Multiple-Output (FDA-MIMO) radar introduces range-dependent beamforming capabilities, enhancing its ability to differentiate true targets from main lobe jammers.
Yumei Tan +5 more
doaj +1 more source
Coherent FDA Receiver and Joint Range-Space-Time Processing
, 2023 When a target is masked by mainlobe clutter with the same Doppler frequency, it is difficult for conventional airborne radars to determine whether a target is present in a given observation using regular space-time adaptive processing techniques ...
Jakobsson, Andreas +2 more
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Transceiver Design for an FDA-MIMO Radar and MIMO Communication Spectral Coexistence System
Leida xuebaoWhen radar and communication systems share the same frequency spectrum on the same platform, mutual interference may occur. In addition, mainlobe deceptive interferences pose a serious threat to radar target detection.
Qihang XU +4 more
doaj +1 more source
International Journal of Antennas and Propagation, 2020 In this paper, we consider the joint angle-range estimation in monostatic FDA-MIMO radar. The transmit subarrays are first utilized to expand the range ambiguity, and the maximum likelihood estimation (MLE) algorithm is first proposed to improve the ...
Kaikai Yang +3 more
doaj +1 more source
Angle and Range Unambiguous Estimation with Nested Frequency Diverse Array MIMO Radars
Remote SensingThis paper proposes an unambiguous method for joint angle and range estimation in colocated multiple-input multiple-output (MIMO) radar using the nested frequency diverse array (NFDA). Unlike a conventional phased array (PA), the transmission beampattern
Zhengxi Wang +4 more
doaj +1 more source
Frequency Diverse Array Radar: Signal Characterization and Measurement Accuracy [PDF]
, 2010 Radar systems provide an important remote sensing capability, and are crucial to the layered sensing vision; a concept of operation that aims to apply the right number of the right types of sensors, in the right places, at the right times for superior ...
Brady, Steven H.
core +1 more source
Beampattern Optimization for Frequency Diverse Array With Sparse Frequency Waveforms
IEEE Access, 2017 Multiple-input multiple-output (MIMO) radar equipped with a frequency diverse array (FDA) can produce a range-dependent beampattern and increase the degrees-of-freedom of the antenna array.
Chaoyun Mai +3 more
doaj +1 more source
A comparison of processing approaches for distributed radar sensing [PDF]
, 2009 Radar networks received increasing attention in recent years as they can outperform single monostatic or bistatic systems. Further attention is being dedicated to these systems as an application of the MIMO concept, well know in communications for ...
Sammartino, P.F.
core
IEEE Access, 2018 Polarization sensitive frequency and frequency diversity array (FDA)-MIMO (PSFDA-MIMO) hybrid radar is an emerging technology. The existing algorithms for parameter estimation with PSFDA-MIMO radar need multiple-dimensional searches, whose computational ...
Binbin Li, Weixiong Bai, Guimei Zheng
doaj +1 more source
An investigation of a frequency diverse array [PDF]
, 2009 This thesis presents a novel concept for focusing an antenna beam pattern as a function of range, time, and angle. In conventional phased arrays, beam steering is achieved by applying a linear phase progression across the aperture.
Antonik, P.
core