Design of Transponder Message Transmission Mechanism Based on Error Correction Code BCH

In order to improve the reliability of the message sent by the Lineside Electronic Unit (LEU) to the active transponder and reduce the channel interference in message transmission, this paper will use the system cyclic code BCH (15,11) code to perform error correction coding on the message. Starting from the principle of encoding and decoding of BCH codes, this paper proposes a method of implementing encoding and decoding based on hardware circuits, and proves the correctness of the encoding and decoding algorithms through simulation. Finally, this article also analyzes the system's symbol error rate performance. The hardware circuit in the article is simple in design and high in realizability, which is suitable for practical applications in engineering.