Systems and methods are provided for synchronizing a plurality of
transmitters in a distributed transmission system. A data source
generates a digital signal. A central data processing component inserts
synchronization data into the digital signal. The synchronization data
includes a periodic reset signal. A plurality of radio frequency
transmitters each comprises a Trellis coder. At least one Trellis coder
state at each Trellis coder is reinitialized to a predefined default
state in response to the reset signal.