Method and device for generating multi-scenario and multi-system satellite digital intermediate frequency signals
A digital intermediate frequency signal and multi-system technology, applied in the direction of measuring devices, radio wave measurement systems, satellite radio beacon positioning systems, etc., can solve the problems of complex, expensive, inconsistent time delay of each channel, etc., to achieve low cost, Design flexible effects
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[0039] The basic idea of the present invention is to select a specific user scenario and the selection of the GNSS system; to obtain the satellite position at a certain moment by converting the telegram into an available ephemeris; to obtain the user's position according to the known user scenario; to obtain the satellite Pseudo-range with users; convert the variation of pseudo-range within 1ms into code frequency control word and carrier frequency control word; adjust code frequency and carrier frequency through code frequency control word and carrier frequency control word to generate current The code signal and carrier signal at the moment; the ranging code, data code and carrier are adjusted together and output according to the correct way.
[0040] The technical solutions of the present invention will be further elaborated below with reference to the accompanying drawings and specific embodiments.
[0041] figure 1A schematic flowchart of a method for generating a sate...
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