CAJ | 학술논문

针对通用信号模型下的顽健波束形成问题,提出了一种基于半正定约束的最差性能最优顽健自适应波束成形算法,通过对波束成形器进行建模和变换,得到了一种简单的顽健自适应波束成形器的表达式.对波束成形器进行求解,不仅得到了最优权矢量的近似闭式解,而且获得了一定的性能改善,并且该算法具有较低的计算复杂度.仿真结果表明了该算法的有效性和正确性.
침대통용신호모형하적완건파속형성문제,제출료일충기우반정정약속적최차성능최우완건자괄응파속성형산법,통과대파속성형기진행건모화변환,득도료일충간단적완건자괄응파속성형기적표체식.대파속성형기진행구해,불부득도료최우권시량적근사폐식해,이차획득료일정적성능개선,병차해산법구유교저적계산복잡도.방진결과표명료해산법적유효성화정학성.
@@@@For the robust adaptive beamforming problem of the general signal models, a robust beamforming algorithm based on the worst-case performance optimization with positive semi-definite constraints was proposed. A simple robust adaptive beamformer was derived by modeling and transforming. Not only an approximate closed-form solution to the optimal weight vector was derived with low complexity, but also the performance improvement could be obtained. The final simulation attests its effectiveness and correctness.