DOA error estimation in 3D cylindrical dipole array geometries including the mutual coupling effect

Poormohammad, Sarah; Nia, Zahra Sasan; Farzaneh, Forouhar

doi:10.1016/j.aeue.2017.12.019

Cited by 9 publications

(9 citation statements)

References 14 publications

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“…As is clear in the MUSIC algorithm, the direction of the signal and interferences is determined by the maxima of the Pseudospectrum function. The Pseudospectrum function has been modified using the mutual impedance matrix [7] as described in Equation ( 4).…”

Section: Data Model For the Music Direction Finding Algorithm In The ...mentioning

confidence: 99%

“…For better system performance, the mutual coupling effect needs to be compensated [5]. The mutual coupling effects were considered in Bartlett and (multiple signal classification) (MUSIC) direction-finding algorithms in [6,7]. The simulations in [7] showed that the proposed method modelled properly the mutual coupling effects in three-dimensional arrays and predicted correctly the RMSE in direction finding.…”

Section: Introductionmentioning

confidence: 99%

“…The mutual coupling effects were considered in Bartlett and (multiple signal classification) (MUSIC) direction-finding algorithms in [6,7]. The simulations in [7] showed that the proposed method modelled properly the mutual coupling effects in three-dimensional arrays and predicted correctly the RMSE in direction finding. The mutual coupling effects between dipole antenna arrays decreased the beamforming efficiency, especially in compact configurations.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the induced EMF method was used for computation of the mutual impedance matrix, which drastically reduces the computation time with respect to the conventional 3D electromagnetic simulators. The algorithms of [7,8] were conducted for accounting the mutual coupling with a novel formulation for the reflector's effect. The effects of the central reflector were considered with an analytical method instead of using computationally time-consuming electromagnetic or iterative simulations.…”

Section: Introductionmentioning

confidence: 99%

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Direction finding and beamforming using cylindrical array of dipole antennas in the presence of cylindrical scatterer/reflector including the mutual coupling effect

Poormohammad

Farzaneh

Banai

2021

IET Microwaves Antenna & Prop

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Three-dimensional dipole arrays are normally used at the proximity of a reflective structure. Filamentary short-circuited dipoles are proposed to model the effect of the reflector structure. The computational burden is significantly reduced by using mutual impedance matrices. An analytical method of modelling the effect of the cylindrical reflector in a threedimensional cylindrical geometry of dipole antenna arrays is introduced both for direction finding and beamforming applications in the presence of mutual coupling. The results of the implementation of the MUSIC (multiple signal classification) direction-finding algorithm show that the proposed model for accounting the cylindrical reflector, in the presence of a mutual coupling effect, has the required efficiency and reduced root-mean-square-error (RMSE). Monte-Carlo simulations for the beamforming algorithm are conducted to evaluate the signal-to-interference ratio (SIR) values in the presence of a cylindrical reflector and the results show that the model has the desired performance. The whole process of beamforming and pattern generation has been verified through high-frequency structural simulator (HFSS) simulation. The simplicity, adequate precision and low computational cost of this method can be appropriately used in the cylindrical reflector/scatterer in threedimensional geometries, especially for base station applications. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.

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Section: Data Model For the Music Direction Finding Algorithm In The ...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Direction finding and beamforming using cylindrical array of dipole antennas in the presence of cylindrical scatterer/reflector including the mutual coupling effect

Poormohammad

Farzaneh

Banai

2021

IET Microwaves Antenna & Prop

Self Cite

View full text Add to dashboard Cite

show abstract

“…MC causes the received data becoming the sum of direct incident signals and re‐radiated signals by other antennas. The effect can be carried out by electromagnetic computation in favourable situations [1, 8, 9] but are not reliable in variable electromagnetic environment. The line of processing algorithms is more applicable due to utilising the received data.…”

Section: Introductionmentioning

confidence: 99%