Patent ID: 8175203
Filing Date: 2012-05-08
Classification: H04L

Abstract:
1. A method of channel estimation in a receiver of a digital television, the method comprising: generating a plurality of broadcast channel coefficients for a channel having a length substantially equaling a length of a field synchronization unit, the generating the plurality of broadcast channel coefficients using a first channel impulse response coefficients and a second channel impulse response coefficients, wherein the generating including: wherein the first channel impulse response coefficients are calculated for near echoes and far echoes related to a main path signal, wherein the second channel impulse response coefficients are generated using field synchronization unit symbols in the received signal, wherein the second channel impulse response coefficients are calculated for the near echoes and far echoes, wherein the first and second channel impulse response coefficients generated using the segment synchronization unit symbols and the field synchronization unit symbols, respectively, are combined to represent characteristics of the channel, compensating for distortion in the received signal, wherein the received signal is compensated using the plurality of broadcast channel coefficients, and decoding the received signal after the compensation.