中文摘要：

对噪声的相关性进行了数学分析,并通过计算机仿真,证实了人为噪声具有较强的相关性.论文还给出了PISM在双边带系统中的应用实例,并通过实验和仿真证实了PISM-DSB系统确实能大幅度提高信噪比.

英文摘要：

This paper mathematically analyzes the correlations of noise and validates the comparatively stronger correlation of the man-made noise. It also shows that the applied case of the PISM in the DSB system could greatly improve SNR by experiments and simulations.