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https://dx.doi.org/10.60692/w8...
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A Fuzzy-Based Angle-of-Arrival Estimation System (AES) Using Radiation Pattern Reconfigurable (RPR) Antenna and Modified Gaussian Membership Function

نظام تقدير زاوية الوصول القائم على التشويش (AES) باستخدام هوائي نمط الإشعاع القابل لإعادة التشكيل (RPR) ووظيفة عضوية جاوسي المعدلة
Authors: M. I. Jais; Thennarasan Sabapathy; Muzammil Jusoh; Rais Ahmad; Mohd Haizal Jamaluddin; Muhammad Ramlee Kamarudin; Phaklen Ehkan; +2 Authors

A Fuzzy-Based Angle-of-Arrival Estimation System (AES) Using Radiation Pattern Reconfigurable (RPR) Antenna and Modified Gaussian Membership Function

Abstract

L'estimation de l'angle d'arrivée (AOA) est un facteur important dans diverses applications de détection sans fil, en particulier les systèmes de localisation. Cet article propose un nouveau type de nœud de capteur d'estimation de l'AOA, connu sous le nom de système d'estimation de l'AOA (AES) où l'indication de l'intensité du signal reçu (RSSI) provenant de multiples antennes reconfigurables en diagramme de rayonnement (RPR) est utilisée pour calculer l'AOA. Dans le cadre proposé, trois ensembles d'antennes RPR ont été utilisés pour fournir une couverture de 15 régions de diagrammes de rayonnement à différents angles. La caractéristique saillante de cette estimation de l'AOA basée sur la RPR est l'utilisation du système d'inférences floues (fis) pour améliorer davantage le nombre de points d'estimation. L'introduction d'une fonction d'appartenance à la fis modifiée (MF) basée sur la fonction gaussienne a entraîné une amélioration de 85% du pourcentage d'agrégation de la fis entre l'entrée et la sortie floues. Cela a ensuite entraîné une faible erreur AOA (inférieure à 5 %) et une erreur quadratique moyenne (inférieure à 8°).

La estimación del ángulo de llegada (AOA) es un factor importante en varias aplicaciones de detección inalámbrica, especialmente en los sistemas de localización. Este documento propone un nuevo tipo de nodo de sensor de estimación de AOA, conocido como sistema de estimación de AOA (AES), donde se utiliza la indicación de intensidad de señal recibida (RSSI) de múltiples antenas reconfigurables por patrón de radiación (RPR) para calcular el AOA. En el marco propuesto, se han utilizado tres conjuntos de antenas RPR para proporcionar una cobertura de 15 regiones de patrones de radiación en diferentes ángulos. La característica más destacada de esta estimación de AOA basada en RPR es el uso del Sistema de Inferencias Difusas (FIS) para mejorar aún más el número de puntos de estimación. La introducción de una función de membresía (MF) FIS modificada basada en la función gaussiana dio como resultado un porcentaje de agregación FIS del 85% mejorado entre la entrada y la salida difusa. Esto más tarde dio como resultado un error de AOA bajo (de menos del 5%) y un error cuadrático medio (de menos de 8°).

Angle-of-arrival (AOA) estimation is an important factor in various wireless sensing applications, especially localization systems. This paper proposes a new type of AOA estimation sensor node, known as AOA-estimation system (AES) where the received signal strength indication (RSSI) from multiple radiation pattern reconfigurable (RPR) antennas are used to calculate the AOA. In the proposed framework, three sets of RPR antennas have been used to provide a coverage of 15 regions of radiation patterns at different angles. The salient feature of this RPR-based AOA estimation is the use of Fuzzy Inferences System (FIS) to further enhance the number of estimation points. The introduction of a modified FIS membership function (MF) based on Gaussian function resulted in an improved 85% FIS aggregation percentage between the fuzzy input and output. This later resulted in a low AOA error (of less than 5%) and root-mean-square error (of less than 8°).

يعد تقدير زاوية الوصول (AOA) عاملاً مهمًا في العديد من تطبيقات الاستشعار اللاسلكي، وخاصة أنظمة التوطين. تقترح هذه الورقة نوعًا جديدًا من عقدة مستشعر تقدير AOA، والمعروفة باسم نظام تقدير AOA (AES) حيث يتم استخدام إشارة قوة الإشارة المستقبلة (RSSI) من هوائيات متعددة أنماط الإشعاع القابلة لإعادة التكوين (RPR) لحساب AOA. في الإطار المقترح، تم استخدام ثلاث مجموعات من هوائيات RPR لتوفير تغطية لـ 15 منطقة من أنماط الإشعاع في زوايا مختلفة. تتمثل السمة البارزة لتقدير AOA القائم على RPR في استخدام نظام الاستدلالات الضبابية (FIS) لزيادة تعزيز عدد نقاط التقدير. أدى إدخال وظيفة عضوية FIS معدلة (MF) بناءً على وظيفة Gaussian إلى تحسين نسبة تجميع FIS بنسبة 85 ٪ بين المدخلات والمخرجات الغامضة. أدى ذلك لاحقًا إلى انخفاض خطأ AOA (أقل من 5 ٪) وخطأ الجذر التربيعي (أقل من 8درجات).

Keywords

Antenna (radio), Aerospace Engineering, FOS: Mechanical engineering, Quantum mechanics, TK Electrical engineering. Electronics Nuclear engineering, Wireless Indoor Localization Techniques and Systems, Radar Wave Propagation and Refractivity Estimation, Engineering, Radiation pattern, Angle of arrival, membership function (MF), FOS: Electrical engineering, electronic engineering, information engineering, FOS: Mathematics, Electrical and Electronic Engineering, Angle-of-arrival (AOA), Refractivity Estimation, Physics, Statistics, Direction of arrival, radiation pattern reconfigurable (RPR) antenna, Computer science, 003, Direction-of-Arrival Estimation, TK1-9971, Algorithm, Robust Adaptive Beamforming, Location Estimation, Physical Sciences, Signal Processing, Computer Science, Gaussian, RF-Based Positioning, Telecommunications, fuzzy inferences system (FIS), Mean squared error, Electrical engineering. Electronics. Nuclear engineering, Mathematics, Array Processing for Signal Localization and Estimation

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
9
Top 10%
Average
Top 10%
gold