Output details
13 - Electrical and Electronic Engineering, Metallurgy and Materials
University of Leeds
Separation of overlapping linear frequency modulated (LFM) signals using the fractional fourier transform
SF-4: This paper reports a generalized technique for splitting propagating chirp signals that overlap in the time/frequency domains. Although applicable wherever reverberation occurs (including communications/terahertz systems), it focused on ultrasonic measurement through metal walls for detection of sand in oil pipelines with BP-funding (michael.power@uk.bp.com, £150k, 2009–2011). This led to a TSB ‘Developing the civil nuclear power supply chain’ programme, with MMI Engineering/Sellafield, to measure sludge transport/separation (TS/K004476, PI:Fairweather, £1.2M). Furthermore, pump-priming (PI:Freear, £500k) from Speir Hunter (paul.jarram@speirhunter.com), led to patented technology (WO2013/128212,WO2013/128210; priority 02/03/2012) and a £1M contract (2013–2015) with National Grid (peter.b.martin@nationalgrid.com)/Speir Hunter/GL(peter.nolan@gl-group.com) for pipeline corrosion detection.
