Abstract:

The combination of antennas-array and advanced signal processing technology leads to the appearance of smart antennas,which have the capability of concurrently dealing with signals of space domain and time domain.Research on smart antennas has become a hot spot in the area of signal processing.Currently,in TD-LTE systems,the multi-antennas beamforming technology with tiny array distance is applied to base station（BS）,in order to lower the intra frequency interference between different user equipments（UE）,and to increase the throughput of the UE in the edge of the cells,and enlarge the range of coverage of the cells.To grantee the accuracy and reliability of beam shaping,the adjusting of antennas-array has become a key technology,which can reduce the amplitude errors and phase errors of different tunnels of the arrays.The simulation results show that our proposed scheme grantees the accuracy and reliability of beamforming.

Key words: smart antenna, signal processing, intra frequency interference, beam-forming