Summary
International Symposium on Antennas and Propagation
2011
Session Number:WeF2
Session:
Number:WeF2-4
ACCURATE SHADOW REGION IMAGING ALGORITHM BASED ON DOUBLY SCATTERED RANGE POINTS MIGRATION FOR UWB RADARS
Shouhei Kidera, Tetsuo Kirimoto,
pp.-
Publication Date:2011/10/25
Online ISSN:2188-5079
Summary:
Ultra wideband (UWB) radar shows promise for near field measurement with its high range resolution, which is suitable for imaging sensors of rescue robots. Recently, radar algorithms employing multiple scattered components have been developed to enhance imaging range compared to that synthesized by a single scattered component. While, as such, we have already proposed a fast algorithm using ranges derivatives for double scattered signals, this cannot produce an accurate image for more complex-shaped objects or in noisy environments, because interference signals or random errors can produce non-negligible image degradation caused by its derivative operation. As a solution to this difficulty, this paper introduces a novel algorithm without using range derivatives but employing a global characteristic of double scattered range points. Some numerical simulation examples verify that this method can create more accurate images even for more interfered and noisy situations.