Abstract:

In order to make full use of the wideband signal information to get efficient direction of arrival (DOA) estimation, a weighed wideband DOA estimation method based on normalized Cramer-Rao bound (CRB) is proposed. Firstly, it estimates the DOA in different frequency bands. Then, the result of DOA is given by weighing the DOA in different frequency bands. The weight is calculated according to the normalized CRB value. The proposed method improves the estimation accuracy and resolution of DOA. Simulation results show the validity of the method.