The paper also gives an algorithm for estimating the variance of the imaging noises by computing residual deconvolution errors, which is used in the second step of the modified Wiener filter.
对改进算法中二次滤波的噪声方差参数选取采取一种计算反卷积剩余误差的方法，用在第二次滤波步骤中。
2
Recovery-Oriented Computing (ROC) takes the perspective that hardware faults, software bugs, and operator errors are facts to avoid coped with, not problems to avoid.
面向修复计算把硬件故障、软件错误和操作员失误当作不可避免的事实，研究的是面对事实的处理技术。
3
Radiowave refractive errors correction methods have defect of computing complexity and no real time in common use.