With choosing signal time delay and element location of nonuniformarray properly, the estimated frequencies and 2 D directions of arrival are unambiguous.
适当地选取时延和非均匀阵列阵元位置，该方法的信号频率和2 D到达方向估计无模糊。
2
The cause for generating nonuniform characteristics of SSPA image sensor array is investigated based on introduction of its basic operating principle, and the correcting method is given.