基于曼彻斯特软件解码的PKE射频通信设计

Design of PKE RF Communication Based on Manchester Decoding

对PKE射频链路软件解码进行集中研究,提出了一种具有滤波功能的新型曼彻斯特软件解码设计。该设计基于ATA5724射频接收器,解调输出数字信号经MCU捕捉,实现曼彻斯特软件解码和软件滤波。测试基于该设计的PKE射频链路表明,该设计能实现正确解码、有效排除解码过程中的噪声干扰、减少布线,且易于代码实现,在不同平台间通用性强。

The study on software decoding used for the PKE RF link is conducted,and a new Manchester decoding design in software and with filter function is presented.The design runs on an ATA524 RF signal receiver that outputs the demodulated digital signal to be captured by MCU directly,then implements the software-based decoding and filtering.Test results obtained by using a PKE RF link running demonstrate that the design is capable of decoding data correctly,filtering noise produced in decoding process effectively,reducing system wiring,as well as easy to code and possesses good versatility for different platforms.