Liam Daniel
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View article: Automatic Vegetation Mapping in Peatlands Using Drone Imagery and Ecologically Informed Machine Learning
Automatic Vegetation Mapping in Peatlands Using Drone Imagery and Ecologically Informed Machine Learning Open
Drained peatlands emit vast amounts of greenhouse gases (GHGs), contributing around 4 % of global GHG emissions. Rewetting peatlands, thus, has the potential to lower global emissions significantly. Restoring drained peatlands to prot…
View article: Improved SAR Imaging via Cross-Learning From Camera Images
Improved SAR Imaging via Cross-Learning From Camera Images Open
In this paper, we propose a novel concept of cross-learning, in order to improve SAR images by learning from the camera images. We use a multi-level abstraction approach to materialise knowledge transfer between the two modalities. We also…
View article: Experimental Evaluation of 79 and 300 GHz Radar Performance in Fire Environments
Experimental Evaluation of 79 and 300 GHz Radar Performance in Fire Environments Open
This paper presents an experimental study of the propagation of mm-wave/low-THz signals in the frequency ranges of 79 and 300 GHz through fire. Radar performance was investigated in various real scenarios, including fire with strong flame,…
View article: Image Segmentation and Region Classification in Automotive High-Resolution Radar Imagery
Image Segmentation and Region Classification in Automotive High-Resolution Radar Imagery Open
Image segmentation and classification of surfaces and obstacles in automotive radar imagery are the key technologies to provide valuable information for path planning in autonomous driving. As opposed to traditional radar processing, where…
View article: 76-81 GHz Millimeter Wave Radar Sea Surface and Maritime Target Measurements
76-81 GHz Millimeter Wave Radar Sea Surface and Maritime Target Measurements Open
Imaging radar measurements of sea surface clutter/reflections and targets of opportunity in the 76-81 GHz frequency band. Part of the University of Birmingham data collection for the EPSRC funded STREAM project (EP/S033238/1).
View article: Imaging Moving Targets for a Forward-Scanning Automotive SAR
Imaging Moving Targets for a Forward-Scanning Automotive SAR Open
In this paper, we extend the forward-scanning synthetic aperture radar (SAR) methodology to reconstruct images of the moving targets, for a forward-looking automotive radar. We adapt a matrix decomposition approach to forward-scanning SAR …
View article: Imaging for a Forward Scanning Automotive Synthetic Aperture Radar
Imaging for a Forward Scanning Automotive Synthetic Aperture Radar Open
In this paper, we propose a forward scanning synthetic aperture radar methodology for a forward-looking automotive (low-terahertz) radar, which combines scene scanning with synthetic aperture processing, resulting in enhanced angular resol…
View article: Application of Doppler beam sharpening for azimuth refinement in prospective low‐THz automotive radars
Application of Doppler beam sharpening for azimuth refinement in prospective low‐THz automotive radars Open
In this study, the authors investigate the application of the Doppler beam sharpening (DBS) technique for angular refinement to the emerging area of low‐terahertz (THz) radar sensing. Ultimately this is to improve radar image quality in th…
View article: Maritime forward scatter radar
Maritime forward scatter radar Open
This thesis is dedicated to the study of forward scatter radar (FSR) in the marine environment. FSR is a class of bistatic radar where target detection occurs at very large bistatic angle, close to the radar baseline. It is a rarely studie…
View article: Design and Validation of a Passive Radar Concept for Ship Detection Using Communication Satellite Signals
Design and Validation of a Passive Radar Concept for Ship Detection Using Communication Satellite Signals Open
In this paper, the feasibility of a bistatic passive maritime surveillance system based on the use of communication satellites as illuminators of opportunity is considered and confirmed experimentally. A theoretical comparison of the chara…
View article: Comparison of Adaptive Spectral Estimation for Vehicle Speed Measurement with Radar Sensors
Comparison of Adaptive Spectral Estimation for Vehicle Speed Measurement with Radar Sensors Open
Vehicle speed-over-ground (SoG) radar offers significant advantages over conventional speed measurement systems. Radar sensors enable contactless speed measurement, which is free from wheel slip. One of the key issues in SoG radar is the d…
View article: Simultaneous data collection of small maritime targets using multistatic radar and forward scatter radar
Simultaneous data collection of small maritime targets using multistatic radar and forward scatter radar Open
Radar detection of small maritime targets is of great interest in the context of coastal and port security for prevention of activities such as smuggling and piracy. Multistatic radar and forward scatter radar offer detection advantages co…
View article: Passive Multifrequency Forward-Scatter Radar Measurements of Airborne Targets Using Broadcasting Signals
Passive Multifrequency Forward-Scatter Radar Measurements of Airborne Targets Using Broadcasting Signals Open
This paper demonstrates the feasibility and effectiveness of forward-scatter radar (FSR) target detection based on the signals of opportunity made available by standard radio and TV broadcast transmission stations. This passive FSR (P-FSR)…
View article: Target motion estimation via multi‐node forward scatter radar system
Target motion estimation via multi‐node forward scatter radar system Open
The focus of this study is on the estimation of the kinematic parameters of a moving target via a multiple‐input‐multiple output (MIMO) forward scatter radar (FSR) system. For this purpose, a crossing time‐based estimation technique is pro…
View article: Target motion estimation via multistatic Forward Scatter Radar
Target motion estimation via multistatic Forward Scatter Radar Open
The focus of this paper is on the estimation of the kinematic parameters of moving targets via a MIMO Forward Scatter Radar (FSR) system. A sub-optimum estimation technique is considered that exploits the information concerning the time in…