Method for isofrequency transmission of a digital signal with echo suppression and corresponding retransmission device
AssigneeTeamcast
InventorsEric Spampinato, Olivier Rousset
Life of this patent
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Abstract
The disclosure relates to a method for isofrequency retransmission of at least one digital signal, including receiving said source signal on a receiving antenna; retransmitting said signal received to a transmitting antenna, a coupling occurring between said transmitting and receiving antennas; extracting at least one coupling echo from said signal received; processing of said coupling echo, so as to generate at least one correction signal; subtracting said correction signal from said source signal, generating an improved signal; and regenerating said improved signal by demodulation/remodulation, so as to retransmit said improved signal to said transmitting antenna.
Claims10
A method for isofrequency retransmission of at least one digital signal, comprising:
- receiving a source signal on a receiving antenna;
- retransmitting said source signal by a transmitting antenna, a coupling occurring between said transmitting and receiving antennas, so that at least one coupling echo transmitted by said transmitting antenna is received with said source signal on said receiving antenna;
- extracting said at least one coupling echo;
- processing said coupling echo, so as to generate at least one correction signal;
- subtracting said correction signal from said source signal, generating an improved signal;
- and
- regenerating said improved signal by demodulation/remodulation, so as to retransmit said improved signal on said transmitting antenna.
A device for isofrequency retransmission of at least one digital signal, the device comprising:
- means for receiving a source signal on a receiving antenna;
- means for retransmitting said source signal by a transmitting antenna, a coupling occurring between said transmitting and receiving antennas, so that at least one coupling echo transmitted by said transmitting antenna is received with said source signal on said receiving antenna;
- means for extracting at least one coupling echo from said source signal;
- means for processing said at least one coupling echo, generating at least one correction signal;
- means for subtracting said correction signal from said source signal, generating an improved signal;
- and
- means for regenerating said improved signal by demodulation/remodulation, so as to retransmit said improved regenerated signal on said transmitting antenna.
A computer program product downloadable from a communications network and/or stored on a support, in machine-readable form and/or capable of being run by a microprocessor, comprising program code instructions for implementing an isofrequency retransmission method comprising:
- receiving a source signal on a receiving antenna;
- retransmitting said source signal by a transmitting antenna, a coupling occurring between said transmitting and receiving antennas, so that at least one coupling echo transmitted by said transmitting antenna is received with said source signal on said receiving antenna;
- extracting said at least one coupling echo;
- processing said coupling echo, so as to generate at least one correction signal;
- subtracting said correction signal from said source signal, generating an improved signal;
- and
- regenerating said improved signal by demodulation/remodulation, so as to retransmit said improved signal on said transmitting antenna.
Dependencies are inferred from the claim text.