METHOD AND APPARATUS FOR TRANSMISSION PATH DELAY MEASUREMENTS USING ADAPTIVE DEMODULATION

摘要

A simulacast transmission system (100) utilizes adaptive demodulation to provide a method and apparatus for automatic delay equalization measurements. The simulcast transmission (100) comprises a control station (101) and a plurality of remote stations (201, 301) capable of re-transmitting a received delay equalization measurement signal which includes at least a correction bit pattern signal followed by a synchronization pattern signal. A receiver receives the re-transmitted delay signal, correlates the received signal to obtain a coarse time of reception and analyzes the received correction bit pattern signal to obtain a fine reception time correction factor.