smartphone | Shahabuddin Amerudin @ UTM

Enhancing Smartphone GNSS Accuracy with External Receivers

Shah / August 14, 2023 / Project, Public, Research, Teaching / accuracy, GNSS, GPS, LBS, receiver, smartphone, sub-meter / 3 minutes of reading

By Shahabuddin Amerudin In an era driven by digital navigation and geospatial accuracy, the fusion of smartphones and external GNSS receivers has revolutionized positioning capabilities. With the proliferation of location-based services, achieving sub-meter accuracy with smartphones has become a tantalizing possibility. In this article, we explore how to realize this feat, including a dive into cost-effective external receivers that can elevate your smartphone’s positioning prowess. Smartphone GNSS: The Foundation Modern smartphones are equipped with built-in […]

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How to Achieve Sub-Meter Positioning Accuracy using Smartphone

Shah / August 14, 2023 / Knowledge, Research, Teaching / accuracy, positioning, smartphone, sub-meter / 3 minutes of reading

By Shahabuddin Amerudin Achieving sub-meter positioning accuracy using a smartphone involves utilizing a combination of techniques, technologies, and tools that optimize the device’s built-in Global Navigation Satellite System (GNSS) capabilities. While smartphones typically offer less precise positioning compared to dedicated high-end GNSS receivers, advancements in hardware and software have enabled the enhancement of smartphone-based positioning accuracy. Here’s how to achieve sub-meter accuracy: It’s important to note that achieving sub-meter accuracy with a smartphone might still

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Pioneering High-Accuracy GNSS Positioning with Low-Cost Receivers and Smartphones

Shah / August 14, 2023 / Knowledge, Project, Public, Research, Teaching / accuracy, GNSS, GPS, low-cost, positioning, receivers, smartphone / 4 minutes of reading

By Shahabuddin Amerudin Introduction In the dynamic landscape of navigation and positioning technology, a remarkable breakthrough has emerged: the accessibility of high-accuracy GNSS positioning through low-cost receivers and smartphones (Marchi et al., 2022). As we delve deeper into this realm, we uncover a transformative era of precision that was once reserved for specialized equipment. This article explores the advancements, implications, and the potential for achieving centimeter-level accuracy through these affordable solutions. Empowering Ubiquity The narrative

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Sub-Meter Accuracy in Consumer Smartphones: Advancements and Challenges in GNSS Positioning

Shah / July 31, 2023 / Knowledge, Research, Teaching / accuracy, consumer, GNSS, GPS, LBS, positioning, smartphone, submeter / 3 minutes of reading

By Shahabuddin Amerudin Sub-meter accuracy in the context of GNSS (Global Navigation Satellite System) refers to the capability of a receiver to determine its position with an accuracy of less than one meter, typically in the range of centimeters or decimeters. This level of accuracy is highly desirable for various applications, including augmented reality, precise navigation, surveying, agriculture, and other location-based services where high precision is crucial. To achieve sub-meter accuracy, GNSS receivers need access

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A Review: Accuracy for the Masses: Real-Time Sub-Meter in a Consumer Receiver?

Shah / July 31, 2023 / Knowledge, Research, Teaching / accuracy, consumer, GNSS, smartphone, submeter / 3 minutes of reading

By Shahabuddin Amerudin Authors: Joshua Critchley-Marrows, Marco Fortunato and William Roberts Publication Date: April 6, 2020 The article discusses a new methodology aimed at achieving sub-meter Global Navigation Satellite System (GNSS) accuracies in consumer devices such as smartphones. The goal is to enable applications like augmented reality and visually impaired navigation to function with higher precision. The article explores the challenges of achieving high accuracy in mass-market GNSS receivers, especially in the context of real-time

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Understanding Location Accuracy in Consumer Smartphones

Shah / July 6, 2023 / Knowledge, Project, Public, Research, Teaching / accuracy, GNSS, GPS, location, position, smartphone / 3 minutes of reading

By Shahabuddin Amerudin Introduction Consumer smartphones have become integral to our daily lives, offering a wide range of features and functionalities, including location-based services. The accuracy of location information provided by smartphones is crucial for navigation, mapping, and various location-dependent applications. In this article, we explore the general capabilities of consumer smartphones in achieving location accuracy and the factors that influence it. GPS Technology and Accuracy Global Positioning System (GPS) is a widely used positioning

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Voice Interaction with Smartphones: An Overview

Shah / March 25, 2023 / Public, Research, Teaching / AI, interaction, NLP, smartphone, voice / 4 minutes of reading

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Mapping of Social Media

Shah / December 21, 2014 / Knowledge, Teaching / 2010, 2012, data, GIS, Internet, smartphone, twitter, ubiquitous / 2 minutes of reading

Software companies are integrating geographic information systems (GIS) technology and social media to map people’s tweets and other social media platforms with geospatial data. This pairing has been helpful in disaster response and crisis management. In the wake of the January 12th, 2010 earthquake in Haiti, a free phone number was established to allow people to text their requests for medical care, food, water, security, and shelter. According to the Mission 4636 report, “Tireless workers

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Privacy on Smartphones – Part 2

Shah / December 20, 2014 / Knowledge, Public / android, apps, FBI, smartphone, WiFi / 1 minute of reading

Remove Carrier IQ on your Android devices. A free Android app “Voodoo Carrier IQ Detector ” can be used to detect the presence of Carrier IQ on your smartphone. In December 2011, Federal Bureau of Investigation director Robert Mueller testified before the US Congress, “We may obtain information that in some way Carrier IQ may have been involved with. … [but the FBI] has neither sought nor obtained any information from Carrier IQ in any

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Privacy on Smartphones – part 1

Shah / December 20, 2014 / Knowledge / android, Apple, foursquare, Google Maps, Instagram, Microsoft, NSA, privacy, Russian, Rutgers University, smartphone, Wall Street Journal / 2 minutes of reading

Turn off location services on your Android devices. The location services function can be turned on or off in Android’s setting menu. It is off by default. However, Apple, Microsoft, and RIM turn on location services by default. However, your cell phone registers its location with cell phone networks several times a minute, and this function cannot be turned off when the phone is getting a wireless signal. Moreover, each mobile user’s daily movements can

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