一种新的S/PDIF接收机数据译码的实现方法

A New Method to Design the Data Decoder of the S/PDIF Receiver

论文分析了S/PDIF音频数据流的特点,引入模式识别中的训练机对S/PDIF音频数据流进行现场脉冲宽度特征提取。依据训练机结果建立分类器实现脉冲宽度分类,根据脉冲宽度进行同步前置码和逻辑电平的解码。利用硬件描述语言Verilog进行设计实现与验证,仿真结果说明这种特征提取方法可以提高S/PDIF接收机数据解译码的适应性和准确性。

Based on an analysis of the characteristics of the S/PDIF audio data stream, this paper brings in the concept of the training machine used in the pattern recognition to complete the feature extraction of the pulse width. According to the result of the training machine, a classifier is built to classify the pulse width used to decode the preambles and logic level. Such a design has been achieved and verified using the hardware description language Verilog, the simulation results show that this method can help to enhance the adaptability and accuracy of the S/PDIF receiver.