Note : island ( s ) enclosed by the range line means that such places are not included to the respective range 注?凡岛屿/群岛被线圈上者，表示该等地区不包括在有关之半径之内。
2.
This method constructs covariance matrix by utilizing data vectors in different range lines and projects phase error vector into noise sub - space which is formed by eigendecomposing the covariance matrix 该方法利用不同距离单元的观测矢量构造协方差矩阵，然后通过对协方差矩阵特征分解得到噪声子空间，最后将相位误差矢量向噪声子空间投影来估计多普勒调频率。
