FPGA implementation of a subspace tracker based on a recursive unitary ESPRIT algorithm

Boonyanant, Phakphoom; Tan-a-ram, S.

doi:10.1109/tencon.2004.1414478

Cited by 9 publications

(6 citation statements)

References 5 publications

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“…Also in this case several implementations have been proposed to try to lighten the computational complexity. In [23], Boonyanant et al propose the implementation of Recursive ESPRIT on a Xilinx Virtex-II FPGA. In this implementation, similarly to [17] they make use of a linear transformation to operate only on real numbers.…”

Section: Related Workmentioning

confidence: 99%

A Reconfigurable Full-Digital Architecture for Angle of Arrival Estimation

Florio¹,

Avitabile²,

Talarico³

et al. 2023

Preprint

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<p>In recent years, Real-Time Localization Systems (RTLS) are gaining significant attention from the scientific community. Usually, RLTS rely on positioning techniques based on the electromagnetic (e.m.) propagation properties of the received signals. Among the many possible approaches, RTLS based on the Angle-of-Arrival (AoA) estimation allows for accurate results with a comparatively lower number of receivers. In this work, we propose a novel, fully digital synchronous architecture for AoA estimation based on phase interferometry. After reviewing the state of-the-art on full-hardware techniques for localization, the main blocks composing the proposed architecture, are discussed in detail, along with their dimensioning equations. The granularity with which the system estimates the phase shifts used to compute the AoA is reconfigurable according to the desired accuracy. The architecture is lightweight and computes the AoA in real-time. To validate the proposed approach, the RTLS architecture has been implemented on an Intel Cyclone IV E EP4CE115F29C7 FPGA board interfaced with a custom-designed receiver front-end, and experimental results on benchmark applications have been collected and analyzed.</p>

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Section: Related Workmentioning

confidence: 99%

A Reconfigurable Full-Digital Architecture for Angle of Arrival Estimation

Florio¹,

Avitabile²,

Talarico³

et al. 2023

Preprint

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“…The authors of [20] presented an implementation of MUSIC algorithm for two sources and 8‐element ULA. Finally, the researchers in [9] implemented ESPRIT algorithm with 4‐sensor ULA for estimating the direction of a single source. Along with previous works, Table 3 also displays performance results of our proposed design of 4 and 8 element receivers.…”

Section: Resource Utilisation and Performance Analysismentioning

confidence: 99%

“…Several papers have addressed real‐time implementation of DOA estimation using FPGAs; examples of which are Bartlett DOA algorithm [6], MUSIC algorithm [7, 8], and ESPRIT algorithm [9]. This paper, on the other hand, focuses on FPGA implementation of a recently published DOA algorithm presented in [10].…”

Section: Introductionmentioning

confidence: 99%

FPGA‐based real‐time implementation for direction‐of‐arrival estimation

Alhamed

Tayem

Alshawi

et al. 2017

J. eng.

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“…In [7], the FPGA implementation of the Multiple Signal Classification (MUSIC) algorithm is presented. Other works include DOA estimation using Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRITs) algorithm [8] and Barlett algorithm [9]. Existing works may not be suitable for next-generation networks due to the high sampling rate for digitization of the wideband spectrum and hence, non-contiguous Sub-Nyquist sampling (SNS) is preferred [11]- [13].…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable Architecture for Spatial Sensing in Wideband Radio Front-End

Gupta

Sharma

Joshi

et al. 2022

IEEE Trans. Circuits Syst. II

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The deployment of cellular spectrum in licensed, shared and unlicensed spectrum demands wideband sensing over non-contiguous sub-6 GHz spectrum. To improve the spectrum and energy efficiency, beamforming and massive multi-antenna systems are being explored which demand spatial sensing i.e. blind identification of vacant frequency bands and direction-ofarrival (DoA) of the occupied bands. We propose a reconfigurable architecture to perform spatial sensing of multi-band spectrum digitized via wideband radio front-end comprising of the sparse antenna array (SAA) and Sub-Nyquist Sampling (SNS). Proposed architecture comprises SAA pre-processing and algorithms to perform spatial sensing directly on SNS samples. The proposed architecture is realized on Zynq System on Chip (SoC), consisting of the ARM processor and FPGA, via hardware-software co-design (HSCD). Using the dynamic partial reconfiguration (DPR), on-the-fly switching between algorithms depending on the number of active signals in the sensed spectrum is enabled. The functionality, resource utilization, and execution time of the proposed architecture are analyzed for various HSCD configurations, word-length, number of digitized samples, signal-to-noise ratio (SNR), and antenna array (sparse/non-sparse).

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FPGA implementation of a subspace tracker based on a recursive unitary ESPRIT algorithm

Cited by 9 publications

References 5 publications

A Reconfigurable Full-Digital Architecture for Angle of Arrival Estimation

A Reconfigurable Full-Digital Architecture for Angle of Arrival Estimation

FPGA‐based real‐time implementation for direction‐of‐arrival estimation

Reconfigurable Architecture for Spatial Sensing in Wideband Radio Front-End

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