Array Antenna Channel Uncertainty Calibration Algorithm and DSP Implementation

The performance of direction-of-arrival (DOA) estimation algorithms is seriously degenerated when there are errors in array manifold. A correlative based technique, which estimates and calibrates the circle array antenna channel uncertainty used an auxiliary source, is given in this paper. Moreover, the high-accuracy DOA estimation algorithm using digital interferometer and all these algorithms' DSP implementations are also studied. The efficiency of the method is confirmed by computer simulation.