用波数域的位场转换和快速傅立叶变换理论研究重力归一化总梯度和归一化相位；
The normalized full gradient and phase of gravity anomalies have been studied by potential field conversion and fast Fourier transform in wave-number domain.
等效斜视的波数域算法是一种适用于大距离徙动高分辨率星载合成孔径雷达成像的优化算法。
Equivalent squint wavenumber domain algorithm is an optimized algorithm suitable for precise imaging of high resolution spaceborne SAR with large range cell migration.
利用多级汇水盆地在频率域(或波数域)中的频率差异，通过滤波方法逐级分离，并提取它们。
In this paper, multilevel water gathering basins are separated and extracted automatically with filtering from geographic map based upon their differences in frequency domain.
从近场声全息原理出发，利用声波沿不同方向传播的特点，针对平面、柱面和球面全息测量建立了波数域内的声场分离公式。
According to the NAH theory and propagating characteristics along different directions, sound field separation technique can be established in the wave-number domain.
在正侧视模式下，以不同视角对同一地域进行观测可获得多组回波数据，通过对多组回波数据的综合处理可提高SAR的距离向分辨力。
Different data sets relative to the same scene acquired with different view angles can be exploited to improve slant-range resolution of SAR in broadside mode.
在正侧视模式下，以不同视角对同一地域进行观测可获得多组回波数据，通过对多组回波数据的综合处理可提高SAR的距离向分辨力。
Different data sets relative to the same scene acquired with different view angles can be exploited to improve slant-range resolution of SAR in broadside mode.
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