雷达成像需要获得目标空间谱域一定范围和密度的采样以重建目标图像，目标空间谱域的填充方式与雷达成像的质量有直接关系。
Radar imaging must obtain an extent of target spatial spectral-domain sampling, and the filling of spatial spectral domain is in direct connection with the quality of imaging result.
在精确重建滤波过程中，需要计算投影数据的雷当变换，本文采用普通累加法和辛普森直线积分法来完成对象素网格的采样。
The Radon transform of the projection is calculated in the filtered process of exact reconstruction, Siddon and Simpson integral are used to sample the pixels to get the projection.
通过增加点云的采样密度，提高重建模型的精度和可靠性。
The high precision and reliability of the reconstruction model are reached by increasing sample density of measuring point cloud.
并行采集图像的SNR，不仅与线圈的几何形态和位置有关，还受重建方法及采样模式的影响。
The SNR of the parallel-collected images is relevant to the geometric shape and the position of the coil and is influenced by the reconstruction method and the sampling mode.
如何在三坐标测量机上合理地对自由曲面进行采样，将关系到曲面重建精度和测量效率等重要问题。
It is important to know how to sample properly free form surfaces on CMM, which concerns the reconstruction accuracy of free form surfaces and measuring efficiency.
如何在三坐标测量机上合理地对自由曲面进行采样，将关系到曲面重建精度和测量效率等重要问题。
It is important to know how to sample properly free form surfaces on CMM, which concerns the reconstruction accuracy of free form surfaces and measuring efficiency.
应用推荐