包括单边带、双边带、载波抑制及四倍频,一种基于多文档得图像合并技术，最大似然（ML）准则和最大后验概率（MAP）准则。- Including single sideband, double sideband, suppressed carrier and quadruple, Based on multi-document image obtained combining technique, Maximum Likelihood (ML) criteria and maximum a post