| 摘要 |
<p>A method is described for synchronizing message transmissions in a multi-regional simulcast transmitter system. A master controller (116) couples to regional controllers (106) for enabling regional message transmissions. The master controller (116) also generates a first delay measurement signal which is coupled to a first regional controller (106) which initiates the transmission and then measures the propagation delay within the first transmission region. The master controller (116) next generates a second delay measurement signal which is coupled to a second regional controller (106'), in an adjacent transmission region. The first regional controller (106) also measures the propagation delay within the second transmission region. An intra-regional differential propagation delay is computed from the measurements of the propagation delays measured from the first and second transmission regions. The transmission delays for each regional transmitter (104) are then adjusted to equalize both inter-regional and intra-regional differential transmission delays.</p> |
