Title :
Multipath ghost suppression for through-the-wall radar
Author :
Qinyan Tan ; Leung, Henry ; Yaoliang Song ; Towe Wang
Author_Institution :
Shanghai Inst. of Spaceflight Control Technol., Shanghai, China
Abstract :
When through-the-wall ultra-wideband (UWB) synthetic aperture radar (SAR) is applied to imaging, the interference of multipath spreading between targets will introduce ghosts into the SAR image. This paper proposes a hidden Markov model (HMM)-based method for suppressing ghosts in the SAR images. Simulations show that the method proposed can improve the peak value ratio of real targets to ghosts by about 15 dB.
Keywords :
hidden Markov models; image denoising; interference suppression; radar imaging; synthetic aperture radar; ultra wideband radar; HMM-based method; hidden Markov model; multipath ghost suppression; multipath interference suppression; through-the-wall UWB synthetic aperture radar; through-the-wall ultrawideband SAR imaging; Educational institutions; Hidden Markov models; Radar imaging; Scattering; Synthetic aperture radar; Trajectory;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
DOI :
10.1109/TAES.2013.100241
