Hardware Implementation of MUSIC and ESPRIT on NI-PXI Platform

Tayem, Nizar; Omer, Muhammad; Hussain, Ahmed

doi:10.1109/milcom.2014.59

Cited by 14 publications

(4 citation statements)

References 10 publications

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“…Notably, it employed a Reduced-Order Root-MUSIC method that reduces the polynomial order of Root MUSIC to speed up computations. In [ 20 , 21 ], researchers conducted a small-scale experiment using a ULA with four elements and one single transmitter. The array of antennas was connected to the NI PXI platform, and an antenna transmitter was connected to another PX platform.…”

Section: Literature Reviewmentioning

confidence: 99%

Direction of Arrival Method for L-Shaped Array with RF Switch: An Embedded Implementation Perspective

Troccoli

Pirskanen²,

Nurmi

et al. 2023

Sensors

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This paper addresses the challenge of implementing Direction of Arrival (DOA) methods for indoor localization using Internet of Things (IoT) devices, particularly with the recent direction-finding capability of Bluetooth. DOA methods are complex numerical methods that require significant computational resources and can quickly deplete the batteries of small embedded systems typically found in IoT networks. To address this challenge, the paper presents a novel Unitary R-D Root MUSIC for L-shaped arrays that is tailor-made for such devices utilizing a switching protocol defined by Bluetooth. The solution exploits the radio communication system design to speed up execution, and its root-finding method circumvents complex arithmetic despite being used for complex polynomials. The paper carries out experiments on energy consumption, memory footprint, accuracy, and execution time in a commercial constrained embedded IoT device series without operating systems and software layers to prove the viability of the implemented solution. The results demonstrate that the solution achieves good accuracy and attains an execution time of a few milliseconds, making it a viable solution for DOA implementation in IoT devices.

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Section: Literature Reviewmentioning

confidence: 99%

Direction of Arrival Method for L-Shaped Array with RF Switch: An Embedded Implementation Perspective

Troccoli

Pirskanen²,

Nurmi

et al. 2023

Sensors

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“…Works in [22] and [23] focus on adaptive beamformers using a 4 and 3 elements antenna arrays respectively, where each antenna is connected to a different USRP board. In [24] and [25] the antenna arrays (up to 8 antennas in the latter case!) are used for DoA estimation.…”

Section: Literature Surveymentioning

confidence: 99%

“…Beamforming applications or DoA estimation algorithms require, a tight phase synchronization over all antennas in order to exploit small phase differences in their signal processing algorithms. The multi-USRP platform designed as proposed would not support these applications as it is known that the USRP boards are not phase-coherent [24]. Therefore an extra phase calibration procedure needs to be implemented.…”

Section: B General Designmentioning

confidence: 99%

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A USRP-Based Multi-Antenna Testbed for Reception of Multi-Site Cellular Signals

et al. 2019

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This paper presents a design of a Software Defined Radio (SDR) multi-antenna testbed able to record live cellular signals from multiple sites. This measurement setup based on Universal Software Radio Peripheral (USRP) boards, is used to record live Long Term Evolution (LTE) signals in sub-6 GHz frequency bands. Due to recording of raw I&Q samples, this fully digital testbed is suitable for variety of research activities spanning channel characterization and beamforming performance evaluation. We propose a phase calibration method based on transmission of a single out of band tone to overcome the uncertainty introduced by the USRP's lack of phase alignment. We demonstrate two use cases where the proposed testbed can be used and we validate its performance during two measurement campaigns with self-generated and real cellular signals. INDEX TERMS Antennas and propagation, beam steering, measurement techniques, multi-antenna, SDR, USRP.

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