Method for Diagnosing Channel Damage Using FPGA Transceiver

If a transmission line carrying a high-speed signal is damaged, for example by poor contact, the transmitted signal will have a slight increase in jitter. Normally, an oscilloscope or a Vector network analyzer (VNA) is required to measure this jitter increase. In this study, we will show that it is possible to diagnose small losses in transmission lines using only an FPGA without instruments by transmitting a pulse signal through the CH to be diagnosed and then oversampling it in an FPGA to statistically accurately measure the width of the transmitted pulse and detect the small pulse width reduction that occurs when a loss occurs.