Building Structure Imaging Algorithm with an Envelope of Ellipses based Multipath

On the basis of the propagation characteristics of electromagnetic wave attenuation, reflection, and diffraction, a imaging algorithm with an envelope of ellipses is proposed to obtain the image of the building geometry structure. The ellipse model regarding a target is established by analyzing the geometry relationship between the target and the coordinates of transceiver. With this model, it can get better imaging results using the echo delay.