Radar clutter suppression and target discrimination using twin inverted pulses by T. G. Leighton, G. H. Chua, P. R. White, K. F. Tong, H. D. Griffiths,

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Radar clutter suppression and target discrimination using twin inverted pulses by T. G. Leighton, G. H. Chua, P. R. White, K. F. Tong, H. D. Griffiths, and D. J. Daniels Proceedings A Volume 469(2160): December 8, 2013 ©2013 by The Royal Society

Schematic of the expected characteristics for using TWIPR to distinguish between linear scatterers (here exemplified by soil and vegetation), semiconductors and rusty metal. T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

(a) Time history of one pulse in the pair, showing the normalized amplitude of the Gaussian- modulated waveform used. T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

Block diagram of the experimental hardware. T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

(a) The general experimental layout and the targets: (b) a BAT54 Schottky diode (dipole+diode target), which measure 6.3 cm tip-to-tip; (c) a piece of 1 mm-thick aluminium plate, with area 34×40 cm2 broadside onto the incident beam, mounted on an iron stand... T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

Measurements using TWIPR with the TWIPR functions P1− and P2+: (a) P1− of background conditions, (b) P2+ of background conditions, (c) P1− of aluminium plate, (d) P2+ of aluminium plate, (e) P1− of diode+dipole target, (f) P2+ of diode+dipole target, (g) P1... T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

Measurements using TWIPR with the TWIPR functions P1− and P2+: (a) P1− of Nokia 3330 (switched on), (b) P2+ of Nokia 3330 (switched on), (c) P1− of Nokia 3330 (switched off), (d) P2+ of Nokia 3330 (switched off), (e) P1− of Nokia 3330 (switched on with out-... T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

Measurements using TWIPR with the TWIPR functions P1− and P2+: (a) P1− of Nokia 3510 (switched on), (b) P2+ of Nokia 3510 (switched on), (c) P1− of Nokia 3510 (switched off), (d) P2+ of Nokia 3510 (switched off), (e) P1− of Nokia 3510 (switched on with out-... T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society

Colour map of the ratio P2+/P1− expressed in dB for the targets studied here. T. G. Leighton et al. Proc. R. Soc. A 2013;469: ©2013 by The Royal Society