Phase delay extraction and compensation method for PGC phase demodulation
A phase delay and phase demodulation technology, applied in the field of phase delay extraction and compensation in the PGC phase demodulation method, can solve the problems that nonlinear errors are difficult to suppress in real time, and phase delay is difficult to measure accurately.
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[0048] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.
[0049] Such as figure 1 As shown, the specific implementation adopts the following phase processing system: the input terminals of the first multiplier 2, the second multiplier 3, the fifth multiplier 12, the sixth multiplier 14, the seventh multiplier 17 and the eighth multiplier 18 are all Connect the digital interference signal S (t), the first digital frequency synthesizer 1 is connected to the input end of the first multiplier 2 and the second multiplier 3, and the second digital frequency synthesizer 13 is connected to the fifth multiplier 12, the sixth multiplier The input terminal of the multiplier 14 and the third digital frequency synthesizer 16 are connected to the input terminals of the seventh multiplier 17 and the eighth multiplier 18 .
[0050] The output end of the first multiplier 2 is respectively connected to the input end of the f...
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