An optical flow method instead of the cross correlation method is proposed for convective precipitation system.
针对强对流降水的情况，提出了使用光流法计算得到的光流场来代替交叉相关法得到的运动矢量场。
Based on the Doppler radar data, a technique is described with the cross correlation method to heavy rainfall nowcast.
以天气雷达体积扫描的资料为基础，采用交叉相关法建立了一种对暴雨的临近预报方法。
This thesis presents the theory on the generalized cross-correlation method and its detailed derivation mathematically. Five generalizations of the cross-correlation function are listed and discussed.
阐述了广义互相关时延估计算法的原理并对其作了详细的数学推导，研究各种加权函数的形式以及性能特点。
In the case of large density difference, there is a velocity separation between different media, making the measurement more difficult, cross-correlation method is still usable.
在密度差别较大时，存在着不同介质间的速度分离，给相关法测量带来困难。
In the case of large density difference, there is a velocity separation between different media, making the measurement more difficult, cross-correlation method is still usable.
在密度差别较大时，存在着不同介质间的速度分离，给相关法测量带来困难。
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