Browsing Cranfield Defence and Security by Title

Browsing Cranfield Defence and Security by Title

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  • Radar cross section modelling using genetic algorithms 
    Hughes, Evan J. (Department of Aerospace and Sensors, 2009-03-12)
    In the design of new, more sophisticated missile systems, simulations need to be realistic and fast. Realistic target models are just as important as realistic models of the missile, but have often been overlooked in the ...
  • Radar detection performance prediction using measured UAVs RCS data 
    Rosamilia, Massimo; Balleri, Alessio; De Maio, Antonio; Aubry, Augusto; Carotenuto, Vincenzo (IEEE, 2022-12-12)
    This paper presents measurements of Radar Cross Section (RCS) of five Unmanned Aerial Vehicles (UAVs), comprising both consumer grade and professional small drones, collected in a semi-controlled environment as a function ...
  • Radar detection performance via frequency agility using measured UAVs RCS data 
    Rosamilia, Massimo; Aubry, Augusto; Balleri, Alessio; Carotenuto, Vincenzo; De Maio, Antonio (IEEE, 2023-08-22)
    This paper addresses radar detection performance prediction (via measured data) for drone targets using a frequency agility-based incoherent (square-law) detector. To this end, a preliminary statistical analysis of the ...
  • The radar signature of the Wind Lens: a less disruptive wind turbine? 
    Balleri, Alessio; Al-Armaghany, A.; Griffiths, H.; Tong, K.; Matsuura, T. (2013-08-25)
    We study the radar signature of a new type of wind turbine, named the Wind Lens. This design includes a flanged shroud around the turbine which concentrates the wind flow past the turbine blades and hence improves the ...
  • Radial blast prediction for high explosive cylinders initiated at both ends 
    Anastacio, A.; Knock, Clare (2016-07-11)
    This paper presents experimental results for the double ended initiation of cylindrical, explosive charges. Bare cylindrical charges of PE4 (RDX/binder 88/12 %) were used with length to diameter ratios of 1/3.7 to 5.75/1 ...
  • Radiation pattern performance of unequally linear arrays with parasitic element 
    Zaina, Noor Ainniesafina; Kamarudin, Muhammad Ramlee; Yamada,Yoshihide; Seman, Norhudah (Institute of Advanced Engineering and Science, 2017-04-01)
    For next generation of 5G mobile base station antennas, multibeam, multifrequency and low sidelobe characteristics requested. Simplify the feeding network will contribute a low feeder loss and frequency dependent. From the ...
  • A radiative transfer model-based multi-layered regression learning to estimate shadow map in hyperspectral images 
    Zahidi, Usman A.; Chatterjee, Ayan; Yuen, Peter W. T. (MDPI, 2019-08-06)
    The application of Empirical Line Method (ELM) for hyperspectral Atmospheric Compensation (AC) premises the underlying linear relationship between a material’s reflectance and appearance. ELM solves the Radiative Transfer ...
  • Radiocarbon dating historical mortars: lime lumps and/or binder carbonate? 
    Lindroos, Alf; Ringbom, Åsa; Heinemeier, Jan; Hodgins, Greg (Cambridge University Press, 2018-04-06)
    Lime lumps and bulk mortars show different 14C contamination when analyzed in several CO2 fractions isolated from the effervescence of an ongoing hydrolysis reaction. Age profiles of both materials are therefore highly ...
  • Radiocarbon dating of Early Egyptian pot residues 
    Dee, M. W.; Wengrow, D.; Shortland, Andrew J.; Stevenson, A.; Brock, Fiona; Bronk Ramsay, Christopher (Peeters Publishers., 2016-06-24)
    A number of absolute dating techniques are now used in archaeology, from dendrochronology to a variety of luminescence and radiometric methods.1 However, radiocarbon dating remains the most effective approach for the ...
  • Radiocarbon dating wooden carvings and skeletal remains from Pitch Lake, Trinidad 
    Brock, Fiona; Ostapkowicz, J.; Wiedenhoeft, A. C.; Bull, I. D. (University of Arizona - Cambridge University Press, 2017-10-30)
    Since the mid 19th century, rare prehistoric wooden carvings and human skeletal remains have been dredged from Pitch Lake, Trinidad, during commercial asphalt mining. Establishing a chronology for these objects is challenging, ...
  • Radiological risk assessment by convergence methodology model in RDD scenarios 
    Rother, Fagner C.; Rebello, Wilson F.; Healy, Matthew J. F.; Silva, Mauricio M.; Cabral, Paulo A. M.; Vital, Helio C.; Andrade, Edson R. (Wiley, 2016-02-19)
    A radiological dispersal device (RDD) is a simple weapon capable of causing human harm, environmental contamination, disruption, area denial, and economic cost. It can affect small, large, or long areas depending on ...
  • Raman spectroscopy of biological tissue for application in optical diagnosis of malignancy 
    Stone, N. (Department of Environmental and Ordnance Systems, 2009-11-25)
    The utilisation of near-infraredR aman spectroscopyfo r the discrimination of cancersa nd pre-cancers from normal tissue in the acro-digestive tract has been evaluated. A commercially available Raman microspectrometehr ...
  • Range images 
    Liu, Yonghuai; Yuen, Peter W. T.; Pang, Yanwei; Zhao, Yitian; Rosin, Paul L. (Wiley, 2019-05-10)
    This article gives an overview of range‐imaging techniques with an aim to let the reader better understand how the difficult issue, such as the registration of overlapping range images, can be approached and solved. It ...
  • Rapid estimation of orthogonal matching pursuit representation 
    Chatterjee, Ayan; Yuen, Peter W. T. (IEEE, 2021-02-17)
    Orthogonal Matching Pursuit (OMP) has proven itself to be a significant algorithm in image and signal processing domain in the last decade to estimate sparse representations in dictionary learning. Over the years, efforts ...
  • Rapid prototyping-coded masks for x-ray backscatter imaging 
    Munoz, Andre Arelius Marcus; Vella, Anna; Healy, Matthew J. F.; Lane, David W. (2018-08-22)
    Coded masks (CM) often lack a self-supporting structure that is difficult to manufacture without recourse to drilled holes in place of ideal square apertures, degrading imaging properties. An alternative approach is presented ...
  • The rate of binary black hole mergers inferred from Advanced LIGO observations surrounding GW150914 
    Abbott, B. P.; Davies, G. S.; LIGO Scientific Collaboration and Virgo Collaboration (American Physical Society, 2016-11-30)
    A transient gravitational-wave signal, GW150914, was identified in the twin Advanced LIGO detectors on 2015 September 2015 at 09:50:45 UTC. To assess the implications of this discovery, the detectors remained in operation ...
  • RCS measurements of UAVs and their statistical analysis 
    Rosamilia, Massimo; Aubry, Augusto; Balleri, Alessio; Carotenuto, Vincenzo; De Maio, Antonio (IEEE, 2022-06-29)
    This paper deals with Radar Cross Section (RCS) measurements of five small Unmanned Aerial Vehicles (UAVs) in a semi-controlled environment as a function of azimuth aspect angle, polarization, and frequency in the range ...
  • Re-offending by released terrorist prisoners: Separating hype from reality 
    Silke, Andrew; Morrison, John (International Centre for Counter-Terrorism, 2020-09-02)
    Recent cases of attacks by released terrorist prisoners highlight issues around the risk of re-offending posed by former terrorist prisoners. What are the appropriate processes and systems for managing and risk assessing ...
  • Reactivity and free radical chemistry of lilac (Syringa vulgaris) charcoal 
    Nyombi, Antony; Williams, Mike; Wessling, Roland (American Chemical Society, 2019-01-28)
    The reactivity, and surface chemistry of charcoal determine its combustion behaviour, and these properties depend on the source of the original wood, production conditions and treatment. Here we studied the properties of ...
  • Real time analysis of combustion emissions: a comparison of catalyst treated and untreated solid fuels 
    Nyombi, Antony; Williams, Michael; Wessling, Roland (Cranfield University, 2019-07-25)
    Carbon monoxide (CO) from combustion of solid fuels causes some deaths worldwide every year. This study has been undertaken to evaluate the amount of carbon monoxide, (and carbon dioxide, nitrogen oxide & methane) evolved ...

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