Single-port direction of arrival estimation using adaptive null-forming

Farzaneh, S.; Sebak, Abdel-Razik

doi:10.1109/aps.2009.5171463

Cited by 2 publications

(1 citation statement)

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“…In [13] authors proposed the power-based solution that applies an adaptive beamforming technique in order to minimize the received power. The result beamforming vector belongs to the noise subspace and provides a pattern with nulls at AOAs that could be estimated.…”

Section: Introductionmentioning

confidence: 99%

Subspace-based AOA estimation in mmWave NR system using power measurement with a single-port antenna array

Shmonin¹,

Kuptsov²,

Trushkov³

et al. 2022

Preprint

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The paper is dedicated to the multipath angle of arrival (AOA) estimation problem in millimeter wave (mmWave) 5G NR communication system. The case of a phased antenna array with a single digital port is considered. In this scenario, the conventional highly accurate subspace-based algorithms cannot be applied because of hardware restrictions. We proposed a novel subspace-based algorithm called power-based root minimal polynomial method (PR-MPM) that uses the spatial power spectrum to get an approximation of the signal correlation matrix. The power spectrum is measured via the conventional beam sweeping procedure over a finite number of directions. The efficiency of the proposed method is studied using the high-realistic ray-tracing-based channel model applied in mmWave IEEE 802.11ay standard. Simulation results show that AOAs can be precisely estimated using only single-port power measurement.

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Section: Introductionmentioning

confidence: 99%