Wide-band DOA Method with Sparse Array for Interference Cancellation

The wide-band direction of arrival (DOA) method is proposed for interference cancellation when the frequency of communication is wide, which not only inherits high-precision advantage of multiple signal classification (MUSIC), but also introduces minimum redundancy array (MRA) for avoiding DOA ambiguity. Besides, calibration of channel and Jacobi mod-el with CORDIC rotation ensure accuracy of DOA in hardware. Hence, there will be a remarkable improvement of DOA accura-cy with wide-band working frequency. Implementation in hard-ware and numerical experiments demonstrate state-of-the-art performance of proposed method. It is ideal for DOA estimation in anti-interference of communication.