| 摘要 |
The invention pertains to the field of devices for receiving satellite ra dio-navigation signals, the signals being transmitted at a carrier frequency , said device including at least means for generating a local signal at a lo cal frequency and a tracking device including a feedback loop, or so-called carrier loop, for the phase control of the local frequency onto the carrier frequency, said loop including a hardware portion and a software portion. Th e software portion carries out the functions of discriminating the correlate d signal phase and filtering said phase. In the different devices of the inv ention, the software portion further includes correction functions substanti ally based on the linear variation coefficients between the local phases .ph i.locale provided after each elementary calculation cycle. The device of the invention increases the loop band and the dynamic stability without modifyi ng the pre-detection band and the workload of the software.
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