Transmission system with adaptive channel encoder and decoder

Transmitter comprises a channel encoder for encoding source symbols into coded symbols according to a coding property, said transmitter being arranged for transmitting the coded source symbol, the transmitter further comprises coding property setting means for setting the coding property to a value dependent on a transmission quality measure, characterized in that the transmitter is arranged for receiving a quality measure, in that the transmitter comprises a filter for deriving a filtered transmission quality measure from the received quality measure, and in that the transmitter comprises filter initializing means for setting the filter to a predetermined initial state at a changing coding property.

Receiver comprising a source decoder for deriving reconstructed source symbols from symbols encoded according to a coding property, the receiver further comprises transmission quality determining means for deriving a transmission quality measure, characterized in that the receiver comprises a filter for deriving a filtered transmission quality measure, and in that the receiver comprises filter initializing means for setting the filter to a predetermined initial state at a changing coding property.

Transmission method comprising encoding source symbols into coded symbols according to a coding property and transmitting the coded symbols, deriving reconstructed source symbols from the coded symbols, deriving a transmission quality measure, and setting the coding property to a value dependent on the transmission quality measure, characterized in that the method further comprises deriving a filtered transmission quality measure, and setting the filter to a predetermined initial state at a changing coding property.

Method comprises encoding source symbols into coded symbols according to a coding property which is set to a value dependent on a transmission quality measure, transmitting the coded source symbols, characterized in that the method comprises receiving a quality measure, deriving a filtered transmission quality measure from the received quality measure, and setting the filter to a predetermined initial state at a changing coding property.

Method comprising deriving reconstructed source symbols from symbols encoded according to a coding property, deriving a transmission quality measure, characterized in that the method comprises deriving a filtered transmission quality measure, and in that the method comprises setting the filter to a predetermined initial state at a changing coding property.