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MIMO Radar Ambiguity Properties and Optimization Using Frequency-Hopping Waveforms [PDF]

open access: yes, 2008
The concept of multiple-input multiple-output (MIMO) radars has drawn considerable attention recently. Unlike the traditional single-input multiple-output (SIMO) radar which emits coherent waveforms to form a focused beam, the MIMO radar can transmit ...
Chen, Chun-Yang, Vaidyanathan, P. P.
core   +2 more sources

Low‐RCS High‐Gain Broadband Substrate‐Integrated Waveguide Antenna Based on Elliptical Polarisation Conversion Metasurface

open access: yesIET Microwaves, Antennas & Propagation
An elliptical polarisation conversion metasurface (PCM) is proposed for Ka‐band applications, integrated with a high‐gain substrate‐integrated waveguide (SIW) antenna to achieve significant radar cross section (RCS) reduction.
Cuiqin Zhao, Dongya Shen
doaj   +1 more source

An interferometer tracking radar system [PDF]

open access: yes, 1969
Fine tuning acquisition and tracking interferometer radar system uses a first antenna array of at least three receiving antennas. Array includes a reference antenna, a coarse tuning antenna, and a fine tuning antenna aligned on a receiving axis.
Broderick, R. F.
core   +1 more source

Matrix Completion in Colocated MIMO Radar: Recoverability, Bounds & Theoretical Guarantees

open access: yes, 2013
It was recently shown that low rank matrix completion theory can be employed for designing new sampling schemes in the context of MIMO radars, which can lead to the reduction of the high volume of data typically required for accurate target detection and
Kalogerias, Dionysios S.   +1 more
core   +1 more source

Target Estimation in Colocated MIMO Radar via Matrix Completion [PDF]

open access: yes, 2013
We consider a colocated MIMO radar scenario, in which the receive antennas forward their measurements to a fusion center. Based on the received data, the fusion center formulates a matrix which is then used for target parameter estimation.
Bajwa, Waheed U.   +2 more
core   +1 more source

Backscatter Transponder Based on Frequency Selective Surface for FMCW Radar Applications [PDF]

open access: yes, 2014
This paper describes an actively-controlled frequency selective surface (FSS) to implement a backscatter transponder. The FSS is composed by dipoles loaded with switching PIN diodes. The transponder exploits the change in the radar cross section (RCS) of
Girbau, D.   +3 more
core   +1 more source

Experimental analysis of multistatic multiband radar signatures of wind turbines [PDF]

open access: yes, 2016
This study presents the analysis of recent experimental data acquired using two radar systems at S-band and X-band to measure simultaneous monostatic and bistatic signatures of operational wind turbines near Shrivenham, UK.
Balleri, Alessio   +3 more
core   +2 more sources

Material Selection and Fabrication Processes for Flexible Conformal Antennas

open access: yesInternational Journal of Antennas and Propagation, 2018
Flexible antennas offer many advantages for communication, radar, RF identification, and energy harvesting applications. A review on the material selection and fabrication process of flexible antennas is presented since these aspects are critical to the ...
Mahmuda Akter Monne   +2 more
doaj   +1 more source

Two-Stage Fast DOA Estimation Based on Directional Antennas in Conformal Uniform Circular Array

open access: yesSensors, 2021
In conformal array radar, due to the directivity of antennas, the responses of the echo signals between different antennas are distinct, and some antennas cannot even receive the target echo signal.
Yao Xie   +4 more
doaj   +1 more source

Isolation Improvement in Reflectarray Antenna-Based FMCW Radar Systems

open access: yesSensors, 2022
This paper presents an optimization of reflectarray-based RF sensors for detecting UAV and human presence. Our previous human detection radar system adapted a center-fed reflectarray antenna to a commercially available radar system, successfully ...
Hesham Yamani, Jihwan Yoon
doaj   +1 more source

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