语音时域保密系统的研究

An Investigation on a Time-Domain Speech Security System

对时域置乱技术作了较深入的探讨。提出将子帧长定为电视场周期的数字式时域保密处理方法，实现了电视伴音加密，最后结合实验，提供了系统中切割噪声和降低加密语音的剩余可懂度两个关键问题的解决途径。

Speech security plays an important role in the field of modern secret communication. An important speech security technology , the time-domain scrambling , is discussed. The basic principle is briefly described and a method of its realization is proposed. On the basis of experiments , some measures to deal with two key problems are given.