An Algorithm for Estimating Direction-of-Arrival of Signals Used in CDMA Systems
Tuanfa Qin · Telecommunication Engineering · 2004
A new algorithm is proposed for estimating direction-of-arrival (DOA) of mobile users' signals, which is based on smart antennas in CDMA systems. The information of user's spread codes and the constant modules property of base band signals are used in the algorithm. The number of estimating DOA is not limited by the number of antenna elements. Both theoretic analysis and computer simulation prove that the algorithm is feasible and suitable for being used in lower Signal-to-Noise Ratio(SNR) and real-time situation.