Efﬁcient FPGA implementation of high speed digital delay for wideband beamforming using parallel architectures

Cardarilli, G.C.; Nunzio, Luca Di; Fazzolari, Rocco; Giardino, Daniele; Matta, Marco; Re, M.; Spanò, Sergio; Simone, L.

doi:10.11591/eei.v8i2.1483

Cited by 5 publications

(3 citation statements)

References 17 publications

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“…To make estimation of noise present in image and for removal of the same using complex algorithm is a crucial task which requires high computing capacity. In this context, hardware acceleration is crucial and Field programmable Gate Array (FPGA) best fit the growing demand of computational capabilities [8][9][10][11][12][13][14][15][16].…”

Section: Previous Work Donementioning

confidence: 99%

Denoising of MRI images using fast NLM

Hanchate

Joshi

2020

IJEECS

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Denoising of image is a very crucial step which should retain fine details but should remove noise. Making the difference between noise and actual edge related data is very difficult. NLM filter helps to make a differentiation between image data and noise data. Its weight function decides the weightage of the neighboring pixel depending upon the similarity with the pixel to process. It helps to retain the edges and avoid it from smoothening. This paper discusses the implementation of NLM filter using hardware platform Spartan 6. After implementaion of this on FPGA, not only denoise the image but preseve edges and there is a tremendous saving in time compared to its matlab implementation. Denoised image performance is calculated using various objective metrics such as MSE, PSNR, SSIM, PFOM etc. FPGA implementation shows clearly the advntages over its matlab implementation.

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Section: Previous Work Donementioning

confidence: 99%

Denoising of MRI images using fast NLM

Hanchate

Joshi

2020

IJEECS

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“…While in digital beamforming, the beamforming process is done using digital signal processing. Digital beamforming provides more flexibility and accuracy of the beamforming process in comparison to analog beamforming because it is easily to control the direction of beam through weight factors at baseband stage [14]. However, digital beamforming requires a separate transmit (receive) module dedicated to each antenna element, this module contains digital/analog converter analog to digital converter (ADC) or digital to analog converter (DAC), mixer, and power amplifier it is called RF chain.…”

Section: Introductionmentioning

confidence: 99%

Wideband hybrid precoder for mmWave multiuser MIMO OFDM communications

Shareef

Al-Kindi

2022

Bulletin EEI

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Using millimeter wave (mmWave) transmission for massive multiple input multiple output (MIMO) system can improve system performance and effectively reduce the size of the massive antennas array. However, A wideband beamformer design is needed to take advantage of this wideband channel. In this paper, a downlink multi-user massive MIMO orthogonal frequency division multiplexing (MIMO OFDM) system for mmWave communications is proposed. Each subcarrier channel can be approximated as a narrowband clustered channel, so a narrowband precoder can be applied for each subchannel. The hybrid precoder is implemented in a manner so the digital precoder is obtained for each subcarrier, whilst the analog precoder is common for all subcarriers. A modified “joint spatial division/multiplexing” (JSDM) scheme is used to design the precoder, where each user equipped with more than one antenna. The design of the analog precoder is based on the second order channel statistics to reduce the overhead information need to process and fed back and the subcarrier baseband precoder based on the instantaneous channel state information (CSI). Following the approach of Kronecker channel model, the iteration between the analog beamformers design at both end of link can be avoided. Finally testing the system using various numbers of antennas at base station.

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“…The original general test equipment typically makes use of ARM or perhaps singlechip microcomputer because of the model and its particular math running ability will be gradual, as well as the energetic packing handle ability will be not enough [13][14][15][16][17][18][19][20][21][22][23][24][25][26]. For this finish, we created the common screening device depending on FPGA.…”

Section: Introductionmentioning

confidence: 99%

Position and speed optimization of servo motor control through FPGA

Ajel

Abbas

Mnati

2021

IJECE

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We have put our model in this paper in which we will be controlling the speed and direction of the servomotor through FPGA. So, as to guarantee the precision from the check control procedure, we have made a project in which the document provides the control plane associated with servo motor depending on Altera DE1 board gentle primary processor as program controller. The system utilizes FPGA since the primary gadget, as well as within Quartus II 10.0 program atmosphere. The associated control components aremade to type a good executable control program in which speed and direction will be controlled the servo motor performance. The particular handle signs from your handle method are usually separated and amplified which results in the push to appreciate the particular handle with the servo motor. Based on the features associated with Altera, it is expounded through 2 facets of equipment’s hardware as well as a software program that supplies an answer for that style associated with the servo control system. This particular document utilizes the actual PID control formula to manage the actual common screening device to attain versatile as well as precise control reasons. The actual equipment execution from the PID control formula is put in place through FPGA; precise as well as effective control program is built to enhance the speed and performance of the servomotor through FPGA.

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Efﬁcient FPGA implementation of high speed digital delay for wideband beamforming using parallel architectures

Cited by 5 publications

References 17 publications

Denoising of MRI images using fast NLM

Denoising of MRI images using fast NLM

Wideband hybrid precoder for mmWave multiuser MIMO OFDM communications

Position and speed optimization of servo motor control through FPGA

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