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本文提出了一种基于测向天线阵列阵列流形上方向向量的空间距离的干涉仪测向处理方法，利用该方法不用对长基线上的相位差测量数据进行匹配，而通过利用测得的一组有模糊的相位差数据构成的方向向量的估计值与阵列流形上的方向向量求空间距离，即可得到入射方位角的估计。与以往相比该方法不用进行数据匹配，并可避免匹配误差的传播，同时，该方法可以直接进行阵列流形误差的修正，因而具有处理简单、稳健、精度高等特点。
In this paper, we present a method of DFI based on spatial distance measurement of directional vectors on the manifold of DF antenna arrays. This method does not need to match the phase difference measurement data of long baseline, but uses the measured one The azimuth angle of arrival can be estimated by finding the spatial distance between the estimated value of the directional vector composed of fuzzy phase difference data and the directional vector on the manifold. Compared with the previous method, this method does not need to perform data matching and avoids the propagation of matching error. At the same time, this method can directly correct the error of array manifold, so it has the advantages of simple, robust and high accuracy.