引入局部频率估计解决了相位展开的“坡度欠估计”问题，使用有限元方法利用了其可以适应任意不规则区域求解的特性。
The underestimation of phase slope was overcome via local frequency estimation. The FEM could easily handle any irregular shape problem domain.
引入局部频率估计解决了相位展开的“坡度欠估计”问题，使用有限元方法利用了其可以适应任意不规则区域求解的特性。
The underestimation of phase slope was overcome via local frequency estimation. The FEM could easily handle any irregular shape problem domain.
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