面向移动通信网的蓝牙加密语音同步研究

在蓝牙终端嵌入加密模块,可以实现语音在手机和移动通信网的安全传输,针对蓝牙加密语音同步问题,通过正弦信号时域特征提取,利用波形码本的可透传性,设计了初始同步头和周期同步头,提出了语音初始同步建立方案和语音同步检测恢复方案。仿真实验及分析表明,方案具有较小时间开销和计算开销,能够有效实现初始同步、同步检测及恢复。

Research on Bluetooth Encrypted Speech Synchronization for Mobile Communication Network

Embedding the encryption module in the bluetooth terminal can realize the secure transmission of voice on the mobile phone and the mobile communication network. Aiming at the problem of bluetooth encrypted speech synchronization, the initial synchronization header and the periodic synchronization header are designed by using the sinusoidal signal time domain feature extraction and the transparent transmission of the waveform codebook. The initial synchronization establishment scheme and the voice synchronization detection recovery scheme are proposed. Simulation experiments and analysis show that the scheme has less time overhead and computational overhead, and that the scheme can effectively achieve initial synchronization, synchronous detection and recovery.