RADIOFREQUENCY SIGNAL RECEIVER WITH MEANS FOR CORRECTING THE EFFECTS OF MULTIPATH SIGNALS, AND METHOD FOR ACTIVATING THE RECEIVER

摘要

A satellite (S1, S2, S3, S4), a high-frequency signal that is modulated by a specific code of the transmission source (SV1, SV2, Sv3, SV4), the receiver (1) is like a ; Receiving with a high-frequency-signal frequency transformation function in order to generate an intermediate signal and shaping means, in order to receive the intermediate signal correlation is formed by a number of correlation channels stage, and correlated after being connected to the correlation stage for processing the extracted data Micro It includes a processor means. Each channel includes one of the accelerator Coral, and at least two copies of the fast and slow search, and copy of the Coral specific source code to trace the emulator is correlated with the intermediate signals. The Coral concentrator also includes a means for integrating the correlation signals to provide a second amplitude value for a first signal and a slow first amplitude value of the auto-correlation function of the signal faster. When the signal (SV1 ', SV3') detecting the multipath channel in the first operation, the one or more second non-used channel is set up through the micro-processor means and is connected in parallel to the first channel. The second channel has the task of searching for a highest amplitude value between the amplitude value of the first two-channel operation. ; A receiver, particularly a GPS-type receiver can be mounted in a case of a wrist watch, can be powered by a battery or a rechargeable battery of the wristwatch.