Method of ATSC MH Stream Assisted Channel Characterization for Mobile ATSC TV Receiver

摘要

This invention is a method to quickly characterize the time variant channel state information to enable ATSC HDTV signal reception in a mobile environment (e.g. in a moving car, walking, on a bus, etc.) by removing the Doppler interference. The invention relates to a single or multiple antenna ATSC terrestrial DTV receiver for indoor and mobile users.

主权项

1. A method of terrestrial ATSC HDTV signal reception using both the ATSC Legacy System Field Sync Symbol and ATSC Mobile/Handheld System Known Symbol Extractor to estimate the ATSC TV broadcasting signal propagation characteristics in the mobile environment using the following functions:
a. The function of Time Domain Iterative Channel Impulse Response Estimator & Signal-To-Noise Ratio Estimator, and b. The function of Frequency Domain Iterative Channel Frequency Response Estimator, and c. The function of Weighted Combining Unit for Channel Impulse Response, and d. The function of Kalman Filter to predict the next embedded signal using the estimated signal propagation characteristics.