Abstract:A conical polarization sensitive conformal array is structured with crossed dipole elements and its data model is built, on the basis of which, a joint two Dimensional Directional Of Arrival (2D DOA) and polarization estimation algorithm is given. In the algorithm, the 2D DOA and polarization information of incident signals are de-coupled first through appropriate transformation to manifold matrix of the array, and then they are estimated separately according to rank reduction theory and Estimation of Signal Parameters via Rotational Invariance Techniques (ESPRIT) algorithm. The final result of joint 2D DOA and polarization estimation is achieved by employing a new designed alternative comparing parameter match algorithm. Monte-Carlo simulation results show that the proposed algorithm is competent?to solve the multiple parameter estimation problem based on conical conformal array antenna.