MULTIFREQUENCY RECEIVER INTENDED FOR SATELLITE LOCATION

摘要

The multifrequency receiver comprises a first receiving subsystem comprising: ^~ means for receiving at least a first and a second distinct frequency at least one of which comprises a signal containing information relating to the position of a satellite, the said receiving means comprising: ^ ~ a first amplification stage delivering a first filtered signal based on the signal received by the receiver; ~ a second stage for processing each of the received frequencies; ^~ a third stage comprising a mixer and at least one local oscillator; ^~ a fourth amplification and filtering stage making it possible to amplify the filtered signal at the output of the mixer. The second stage comprises: ^ ~ a first switch; ^ ~ means for amplifying the signals of the two channels; ^ ~ a second switch making it possible to deliver the signal to the third stage.