Attitude Estimation for Linear-Type Targets Based on Bistatic Full-Polarization Information

This letter proposes a novel algorithm to estimate the 3-D attitude using bistatic full-polarization information. First, tilt angles of bistatic Huynen target parameters are extracted from the Sinclair matrix. Then, extracted tilt angles are used to recover the linear-type target attitude by parametric space searching and noncoherent accumulation. Anechoic chamber experiment results demonstrate that the max relative error is smaller than 3% for an iron wire object with two attitude placements.