Institute of Communications and Connected Systems


Online Seminar | Extracting 3D maps of cities from blockage and attenuation of Positioning signals

17 June 2020, 11:30 am–12:30 pm

A vector like futuristic sketch of city architecture with network nodes/lines at the base

In this seminar UKRI Future Leaders Fellow Professor Ana Basiri, of UCL's Centre for Advanced Spatial Analysis, will talk about the use of GPS and wireless signal blackspots to create 3D map of cities

This event is free.

Event Information

Open to

All | UCL staff | UCL students






Robert Thompson – Institute of Communications and Connected Systems

Extracting 3D maps of cities from blockage and attenuation of Positioning signals 

3-Dimensional (3D) models of cities are beneficial or even essential for many applications, including energy consumption modelling, emergency evacuation and responses, positioning and navigation (particularly for autonomous cars and drones in urban canyons), and Building Information Modelling (BIM). This talk discusses the crowdsourcing-based approach to create accurate 3D models from the blockage and attenuation of free-to-use and globally-available data of Global Navigation Satellite Systems (GNSS) and other available signals such as WiFi.

The effects of urban features, such as buildings and trees, on GNSS signals, i.e. signal blockage and obstruction, and attenuation will help to recognise the shape, size, and materials of urban features, through the application of statistical, machine learning (ML) and artificial intelligence (AI) techniques. The spatio-temporal patterns will be used for creating and updating the 3D models of cities at a high level of detail (LoDs), i.e. approximating the façade and the building materials, e.g. windows, from which the signals are reflected or have gone through.
The 3D models will feed into 3D-mapping aided GNSS positioning (and integrated with other signals e.g. WiFi) which can ultimately provide more continuous and accurate GNSS positioning in urban canyons and indoors. 

ICCS Chair

This session will be chaired by: Professor Izzat Darwazeh, ICCS Director

Attending the seminar 

The Seminar will be held on the Zoom platform. Details of how to access Zoom can be found on their website.

Please click this URL to join. https://zoom.us/j/93621264615
Webinar ID: 936 2126 4615
Password: Will be distributed to ICCS members or can be requested by email iccs@ucl.ac.uk

Download outlook calendar appointment

About the ICCS online seminar series

The ICCS seminar series is designed to bring together members of our community who are currently away from our home in Bloomsbury and distributed across the world. The Seminars are being curated to provide academic exploration and inspiration, offering insights into a range of topics surrounding communications and connected systems. Topics will either explore subjects close to the work of our academics or introduce wider concepts from experts in the global academic and industrial community.

If you wish to suggest a future topic or speaker please use the link below, speakers could be from academia, industry, within ICCS/UCL or from further a field.


The seminar will begin with a presentation aimed at a technical audience, but at a level that will be accessible to those from a range of engineering disciplines. Speakers have been asked to end their presentations with a technical challenge or delving deeper into the content to engage those more invested in the topic. 

The seminar series is designed to offer a compact exploration of ranging topics and is therefore short in format. The presentation will run for 15 - 30 minutes, followed by 15 minutes of questions.
 Suggest a topic or speaker

About the Speaker

Professor Ana Basiri

Chair of Geospatial Data Science at University Of Glasgow

Ana Basiri is Chair of Geospatial Data Science and UKRI Future Leaders Fellow based at University Of Glasgow
Ana works on developing solutions that consider gaps, unavailability, and biases in crowdsourced data as a useful source of data. For this, she leads an interdisciplinary team and collaborates with world-leading academic and industrial partners, including Ordnance Survey GB, Uber, Alan Turing Institute, and engages with the public, policymakers and government.

Ana is the Editor in Chief of Journal of Navigation and Associate/Guest Editor of several high impact journals including IET Smart city and International Journal Geographical Information Science. She has published more than 40 peer-reviewed journal papers, book chapters and chaired several conferences. Ana has secured over £1.5M in research funding and received several awards and prizes, including Women Role Model in Science by Alexander Humboldt and European Commission Marie Curie Alumni. 

More about Professor Ana Basiri