Nulling broadening technology based on circular array adaptive beamforming

Adaptive beamforming technology is one of the most effective method of interference suppression, however, the nulling formed by the conventional beamforming methods is usually quite narrow, and it may leading to the adaptive weights and the data mismatch when the interference source and the carrier is relatively fast-moving. This article deduce a news algorithm of nulling widening, based on the uniform circular array, and for the perspective of the statistical model, the algorithm is well broadening the nulling at the interference. The calculation and simulation results show the effectiveness of the algorithm.