Physical layer transceiver with increased noise and interference tolerance and reduced loss

Abstract

Methods, PHYs, and computer-readable media are provided for reliably receiving data at a physical layer transceiver of an automobile in the presence of noise or interference. A non-equalized signal is received at a physical layer transceiver via a communication channel in a high noise or interference automotive environment. The non-equalized signal is prepared for extraction of data by performing one or more of the following: improving a signal-to-noise ratio of the non-equalized signal by using two or more parallel matching filters to correlate the non-equalized signal with two or more signal templates to detect the presence of logic low signal patterns and logic high signal patterns in the non-equalized signal; reducing jitter in the non-equalized signal by tracking a phase of the non-equalized signal using a digital timing loop; compensating for noise or interference distortion in the non-equalized signal by selecting a decision sample defined by a plurality of peaks, the selecting performed based on tracking peaks in the non-equalized signal; searching the non-equalized signal for a preamble before initiating a process of receiving payload data, to reduce false data reception caused by noise or interference; and extracting data from the prepared non-equalized signal.