Target detection in multi-channel through-wall-radar imaging

In the building environment of through-wall-radar imaging, multi-path clutter generates ghost images and defocuses target images, and the ambiguities of wall parameters lead to the defocusing of target images. These two problems reduce the signal-to-clutter ratio of image, which makes it difficult to robustly implement target detection in image domain. In this paper, multi-channel through-wall-radar imaging is performed to achieve multiple single-channel images. Then M-N-K detector favoring target detection in multiple images with the ghost images and the defocusing of target images is employed to fuse these single-channel images to one high-quality binary image. The experiment results are provided to demonstrate the prominent detection performance in multiple single-channel images with the low signal-to-clutter ratio.