Effectiveness of PAM-4 Line Coding in Triplication-based Error Correction Codes under Harsh Electromagnetic Disturbances

摘要

In harsh electromagnetic environments, Error Detection and Correction Codes can be used to counteract transmission errors. However, the overhead introduced by Triplication-based codes can be detrimental for the communication capabilities of the system. This paper assesses if a Pulse Amplitude Modulation with 4 symbols (PAM-4) is worth using in harsh electromagnetic environments. It is found that some systems can benefit from PAM-4 in terms of availability, but a significant trade-off in terms of False Negatives must be made. A False Negative arises when the Error Detection and Correction Code deems the received data valid, whilst it was corrupted during transmission.