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Through-wall imaging (TWI) is an emerging field of research that maps the scene behind obstacles (including the walls of buildings,rubber,grass,etc).It has a wide range of applications in the military and commercial spheres,such as antiterrorism,rescue and surveillance missions.[1] Over the last few years,TWI image enhancement has enjoyed increasing interest.[1-4] Unwanted artifacts generated from wall reflections,antenna coupling and ghost targets produce clutters and noise which degrade image quality significantly.[1] These unwanted artifacts should be minimized prior to target detection and recognition steps.