The algorithm takes advantages of all nonredundant information of the fourth - order cumulant matrices and so reduces the computational cost 該方法利用了四階累積量陣的所有非冗余信息,在很大程度上降低了運算量。
Second , since there are lots of redundant items in the fourth - order cumulant matrices , we introduce an algorithm of direction - of - arrival estimation based on the maximal set of nonredundant cumulant ( msnc ) 其次,由于利用四階累積量進行波達方向估計時計算量很大,文中提出了一種基于最大非冗余累量集合的方向估計方法。