Ellipse-cross-localization accuracy analysis of through-the-wall radar

Ellipse-cross-localization (ECL) method is presented for TWR location in this paper. The location error is mainly influenced by errors of the wall parameters and the target relative position to antennas. The effect of wall thickness and dielectric constant on TWR localization is analyzed. And the localization accuracy of detection region in different antennas configurations is illustrated by location error distribution map. The results demonstrate that accurate estimation of wall parameters and proper configuration of antennas can improve the performance of TWR system efficiently. These lead to new insights on TWR system design.