Special Issue "Through-Wall Radar Imaging and Indoor Surveillance"
Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 3996
Interests: electromagnetic scattering; radar imaging; ground penetrating radar; data integration; non-invasive monitoring tools
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Interests: microwave sensors; radar imaging; electromagnetic scattering
Interests: microwave imaging; radar imaging
Interests: microwave sensors; radar imaging; radar target detection; through-barrier sensing
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Through-wall radars are attracting notable interest for the identification of targets in complex and closed or inaccessible building environments, thanks to the capability of electromagnetic signals to penetrate opaque media in frequencies ranging from some hundreds of megahertz to a few gigahertz. As a result, these systems have profound implications in military and public security fields, such as search and rescue missions, law enforcement, indoor surveillance, and building interior reconstruction, to name but a few examples.
In the last decade, notable technological advances have led to the development of advanced radar systems based on different waveforms (pulsed, stepped-frequency, frequency-modulated continuous wave, noise, etc.) and operating under different (physical/synthetic) antenna array configurations (monostatic, bistatic, MIMO). Aside from active radar transceivers, passive through-wall radars exploiting ubiquitous devices as opportunistic illuminators (e.g., Wi-Fi access points) have also been developed.
Through-wall radar technology has now matured, but some technical issues demand signal-processing approaches capable of providing quick and reliable information at the scene under investigation. For example, the ringing effect caused by multiple reflections inside the front wall is a strong source of clutter to be filtered while imaging stationary targets. Aside from clutter rejection methods, SAR imaging algorithms play a crucial role in providing, to the end-user, a clear and focused image of the surveillance area which is more easily interpretable than raw data. In this respect, accurate modeling of the electromagnetic sensing process that also accounts for multipath radar signal propagation in the complex indoor environment can be exploited improve the imaging performance. Signal processing strategies can be also devised to mitigate the effect of artifacts produced by the mutual interactions between nearby targets.
The image formation process is preliminary to higher-level signal processing procedures such as automatic detection and tracking capable of estimating the real-time position and dynamics of targets in the scene. Similarly, classification algorithms play a relevant role for human activity recognition as well as building feature extraction.
This Special Issue aims at highlighting the most recent scientific and technological advances in the field of through-wall radar imaging and indoor surveillance with a focus on hardware, modeling, and data processing. We solicit the submission of original research articles as well as review articles that explore the following non-exhaustive list of topics.
- Active/passive through-wall radar systems for real-time sensing and imaging
- Forward and inverse electromagnetic scattering models
- Clutter rejection and multipath exploitation data processing approaches
- SAR focusing algorithms for UWB radar
- Compressive sensing for through-wall radar imaging
- Building layout imaging and feature extraction
- Data processing approaches exploiting opportunistic sources for real-time surveillance
- Moving human target detection and tracking in indoor environments
- Statistical methods and artificial intelligence tools for radar image classification
- Vital body and human activity signal detection and monitoring
Integration of radar systems in surveillance systems exploiting other kinds of sensors (optical camera, infrared cameras, lidar, magnetometers, optic fiber sensors, etc.)
Dr. Francesco Soldovieri
Dr. Gianluca Gennarelli
Prof. Matteo Pastorino
Prof. Ram Narayanan
Manuscript Submission Information
Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.
Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Remote Sensing is an international peer-reviewed open access semimonthly journal published by MDPI.
Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.
- radar imaging
- inverse electromagnetic scattering problem
- UWB radar
- Doppler and micro-Doppler detection
- target detection and tracking