Multi-Channel FPGA Acquisition System for SDR Receivers

Diaz, Juan Gabriel; Scillone, Germán; García, Javier

doi:10.23919/aadeca.2018.8577394

Cited by 3 publications

(3 citation statements)

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“…Furthermore, SDR is commonly found in diverse projects encompassing various applications. These include the regulation of the electromagnetic spectrum by identifying transmitters and utilized bands, networks such as advanced driver assistance systems that integrate control devices with SDR technology in vehicles (Park et al, 2019), data acquisition and processing systems (Diaz et al, 2018), positioning systems using GPS (Seo et al, 2011), transmitter identification using machine learning techniques (Riyaz et al, 2018), advancements in ground stations for satellite communication (Boettcher et al, 2016), and even the localization of receivers through an LTE network using SDR (del Peral-Rosado et al, 2013), among numerous other applications. Moreover, it is crucial to highlight that SDR presents significant possibilities for academia and research.…”

Section: Sdr Applicationsmentioning

confidence: 99%

Software Defined Radio, a perspective from education

Ramos,

Camacho,

Buitrago

et al. 2024

Front. Educ.

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The evolution of communication systems has brought about a paradigm shift, particularly in radiocommunications, where software has increasingly taken precedence over hardware. This transition has not only reduced implementation costs but has also significantly enhanced the flexibility of equipment architecture. A prime example of this trend is the emergence and consolidation of software-defined radio (SDR) technology in recent decades. This study provides a comprehensive contextualization of SDR technology, offering insights into its current state in terms of development tools and market equipment. Additionally, two learning scenarios are presented that employ different teaching methodologies. In one of these scenarios, communication theory is exclusively approached from a theoretical perspective. In the second scenario, knowledge acquisition is encouraged through the implementation of low-cost laboratories that incorporate SDR technology. The study indicates that implementing SDR technology boosts student motivation and learning, with 73.13% believing it enhances engineering education and 96% showing increased motivation. Those using SDR in practical laboratories perform better on knowledge tests, but statistical analysis shows that the difference is not statistically significant.

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Section: Sdr Applicationsmentioning

confidence: 99%

Software Defined Radio, a perspective from education

Ramos,

Camacho,

Buitrago

et al. 2024

Front. Educ.

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“…Las señales de cada antena son recuperadas luego de pasar por las etapas de RF, y ser muestreadas a frecuencia intermedia f IF . Para la adquisición de los datos se utilizó un sistema cuya arquitectura de diseño está basada en [78]. El hardware asociado se compone de ADC's y un arreglo de compuertas lógicas programables.…”

Section: Implementación Y Validaciónunclassified

“…Las señales de cada antena son recuperadas luego de pasar a través del cabezal de RF y ser digitalizadas en frecuencia intermedia, f IF . La etapa de adquisición de datos utiliza una plataforma de muestreo de gran velocidad y ancho de banda, cuya arquitectura se basa en [78]. Los parámetros principales del receptor utilizado en este ensayo son, Cuantización: 2 bits por canal.…”

Section: Escenario Parciamente Controlado Nf Adaptivounclassified

Diseño de antenas inteligentes

Marranghelli¹

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Los sistemas de comunicaciones inalámbricos utilizan arreglos de antenas para discriminar la dirección de arribo de las señales recibidas. Estos arreglos junto a los algoritmos de procesamiento asociados suelen denominarse Antenas Inteligentes. En aplicaciones de precisión o críticas de los Sistemas de Navegación por Satélite permiten rechazar interferencias, evitar rebotes de la propia señal y aumentar la potencia recibida. Naturalmente, un arreglo compacto y de pocos elementos es muy conveniente por su bajo costo y su practicidad de montaje. Sin embargo, el acoplamiento mutuo entre antenas no puede ser despreciado en estos casos. Pero, ¿cuáles son realmente las desventajas del acoplamiento mutuo?, ¿puede aportar alguna ventaja? Esta tesis muestra que una comprensión profunda del acoplamiento permite realizar diseños compactos, eficientes y con baja complejidad de procesamiento. Concretamente, se presenta una técnica novedosa de transformación que permite aplicar los mismos algoritmos utilizados bajo un modelo de arreglo ideal (antenas idénticas y no acopladas), sin alterar las propiedades estadísticas de las señales recibidas. Además, se ha diseñado, construido y validado experimentalmente un arreglo compacto y eficiente de cuatro antenas que, a través de esta transformación, es equivalente a un arreglo ideal con antenas a mayor distancia entre sí, aumentando su resolución espacial.

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Simple and Effective GNSS Spatial Processing Using a Low-Cost Compact Antenna Array

Marranghelli

Valle

Roncagliolo

2021

IEEE Trans. Aerosp. Electron. Syst.

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A compact planar four-element antenna array that can be used to improve robustness and accuracy in applications of satellite-based navigation systems which require simple, lowcost, lightweight but also efficient antenna solutions is proposed. By introducing an orthonormal transformation in the digital signal processing stage, it is possible to simplify the effect of the distorted in-situ antenna radiation patterns obtaining an equivalent almost ideal phased array response. The actual prototype designed under this concept is a 14 cm ×14 cm single layer microstrip antenna array for the GNSS L1/E1-bands that achieves good total antenna efficiency without employing any additional matching/decoupling stage. Promising results obtained through numerical simulations and on-field experiments showing effective direction of arrival estimations and mitigation of radio frequency interferences with simple spatial processing algorithms applied after the proposed signal transformation are presented.

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Multi-Channel FPGA Acquisition System for SDR Receivers

Cited by 3 publications

References 1 publication

Software Defined Radio, a perspective from education

Software Defined Radio, a perspective from education

Diseño de antenas inteligentes

Simple and Effective GNSS Spatial Processing Using a Low-Cost Compact Antenna Array

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