Results 31 to 40 of about 5,538,194 (288)

Transmitting strategy with high degrees of freedom for pulsed‐coherent FDA radar

open access: yesIET Radar, Sonar & Navigation, 2022
Multidimensional and flexible radar resource transmission in time, frequency and space domains is strongly demanded for advanced digital array radar to meet the challenging observation requirements.
Lei Yu, Feng He, Yi Su, Zhen Dong
doaj   +1 more source

Design of a Millimeter-Wave MIMO Antenna Array for 5G Communication Terminals

open access: yesSensors, 2022
This paper presents a design of multiple input multiple output (MIMO) antenna array for 5G millimeter-wave (mm-wave) communication systems. The proposed MIMO configuration consists of a two antenna arrays combination.
Jalal Khan   +5 more
doaj   +1 more source

Frequency-Selective Surface-Based MIMO Antenna Array for 5G Millimeter-Wave Applications

open access: yesSensors, 2023
In this paper, a radiating element consisting of a modified circular patch is proposed for MIMO arrays for 5G millimeter-wave applications. The radiating elements in the proposed 2 × 2 MIMO antenna array are orthogonally configured relative to each other
Iftikhar Ud Din   +8 more
doaj   +1 more source

An error bound analysis for M-DPSK in frequency-selective Rayleigh fading channel with diversity reception [PDF]

open access: yes, 1994
A theoretical upper bound is presented to calculate the error probability for raised cosine filtered M-ary differential phase-shift keying (RC M-DPSK) in frequency-selective Rayleigh fading channels.
Nix, AR, Chow, YC, McGeehan, JP
core   +1 more source

Robust FDA-STAP Under Transmit Array Gain and Phase Error for Range Ambiguity

open access: yesEng
Frequency diverse array (FDA)-aided spacetime adaptive processing (STAP) is a useful approach to suppressing range-ambiguous clutter in airborne radars.
Di Song   +3 more
doaj   +1 more source

Mainlobe Deceptive Jammer Suppression Based on Quadratic Phase Coding in FDA-MIMO Radar

open access: yesRemote Sensing, 2022
In this paper, the problem of mainlobe deceptive jammer suppression is solved with the frequency diversity array-multiple-input multiple-output (FDA-MIMO) radar system.
Yiqun Zhang   +3 more
doaj   +1 more source

Focusing RF-on demand by Logarithmic Frequency-Diverse Arrays

open access: yes2020 IEEE Wireless Power Transfer Conference (WPTC), 2020
The radiating systems exploiting the frequency diversity of the antennas are powerful architectures, that can have a big impact on wireless power transmission applications, but their characterization is merely theoretical. This paper offers a deep and critical numerical analysis of frequency- diverse arrays and shows the advantages of the family with ...
Fazzini E.   +3 more
openaire   +1 more source

Frequency Diverse Coprime Arrays With Coprime Frequency Offsets for Multitarget Localization

open access: yesIEEE Journal of Selected Topics in Signal Processing, 2017
Different from conventional phased-array radars, the frequency diverse array (FDA) radar offers a range-dependent beampattern capability that is attractive in various applications. The spatial and range resolutions of an FDA radar are fundamentally limited by the array geometry and the frequency offset.
Si Qin   +3 more
openaire   +1 more source

Frequency diverse array with random logarithmically increasing frequency offset [PDF]

open access: yesMicrowave and Optical Technology Letters, 2020
AbstractThe frequency diverse arrays (FDAs) have been extensively investigated since it can provide a unique angle‐range‐dependent beampattern. This range‐dependent characteristic can suppress the range ambiguous clutters, leading to many novel potential Radar applications.
Gaojian Huang   +3 more
openaire   +2 more sources

Reduced-Dimension FDA-STAP for Range-Ambiguous Clutter Rejection Under Limited Snapshots

open access: yesEng
Space-time adaptive processing (STAP) has been widely recognized as an effective technique for suppressing clutter in airborne radar systems. Nevertheless, range ambiguity can seriously affect the clutter rejection capability of conventional STAP methods.
Di Song   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy