Use of Imaging Probability Function to Reduce Ghost Image

Through the wall imaging (TWI) is a difficult but important task for both law enforcement and military missions. Getting information on both the internal features of a structure and the location of people inside is playing an important role in many fields such as anti-terrorism, search and rescue hostage, and barricade situations. Up to now, many researchers have developed diverse experimental systems, most of which are based on linear antenna array to get the image of objects. However, the backward projection (BP) algorithm based on ellipse curves usually generates additional ghost images. In this paper, the algorithm using the imaging probability function (IPF) to reduce the ghost images is proposed and simulated. The results of simulation show that this approach is feasible.