Joint estimation of Doppler frequency and directions in channel sounding using switched Tx and Rx arrays. - Troels Pedersen; Claus Pedersen; Xuefeng Yin; Bernard H. Fleury; Rene R. Pedersen; Biljana Bozinovska; Asger Hviid; Patrik Jourdan; Andreas Stucki (GLOBECOM, 2004)