带幅频反馈的单音信号相位翻转检测

Tone Phase Reversal Detection with Frequency-Offset Feed Back

提出了一种针对ITU-T.G.168的有关规范、带有频偏估计和相位补偿的单音信号翻转检测方案。针对信号幅度有较大的动态范围,判决采用了自适应门限。信号滤波和参数提取由DPLL(数字锁相环)实现,起到了良好的效果。在TMS320C6415平台上的仿真表明,此算法在高斯白噪声信道下具有良好的检测性能和较低的计算量。

This article proposes a tone-phase reversal detection algorithm with frequency-offset feedback. This technique is tested under channel corruption by additive white Gaussian noise. The implementation is successful on TI6415.