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本文介绍几种适用于频域与时域模拟语音保密的微处理器技术,重点描述时域语音信号编码。例如时段置换(TSP)和时段倒置(RTS)。文中给出了用微处理器为基础的试验装置对这些算法进行实验评价的结果,并讨论了将时间与频率置乱算法组合起来以获得借助多级编码提高保密度的可行性。文章最后对刚露头角的专用集成电路片给采用微处理器实现的模拟语音保密技术带来的影响作了估量。
This article describes several microprocessor technologies for frequency domain and time domain simulation of voice secrecy, focusing on the description of time-domain speech signal coding. Such as time period replacement (TSP) and time period inversion (RTS). In this paper, we present the results of experimentally evaluating these algorithms with a microprocessor-based experimental setup and discuss the feasibility of combining time-frequency scrambling algorithms to improve the degree of confidentiality using multilevel coding. The article concludes with an assessment of the impact of ASIC-only ASICs on microprocessor-based analog voice security.