Clock recovery method and system in frequency shift keying adjustment system
A regulation system, frequency shift keying technology, applied in the direction of automatic power control, electrical components, etc., can solve problems such as crystal oscillation decoding, mismatch between output clock and output load data, errors, etc., to ensure consistency and improve decoding. The effect of accuracy
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Embodiment 1
[0041] Such as figure 2 As shown, this embodiment proposes a clock recovery method in a frequency shift keying adjustment system, the method comprising:
[0042] S1. Decode the demodulated data in the frequency shift keying adjustment system to obtain 1-bit load output data of the frequency shift keying adjustment system;
[0043] S2. According to the demodulation signal and the sampling frequency of the frequency shift keying adjustment system, the clock frequency is automatically recovered, and the clock frequency is compared with the time frequency of the load data to adjust the clock period. When the clock frequency is ahead of the load data, the clock The period is self-increasing; when the clock frequency lags behind the load data, the clock period is self-decreasing, and finally the recovered clock signal is obtained;
[0044] S3. Obtain the frequency of the crystal oscillator according to the recovered clock signal and the demodulated signal, and use the frequency of...
Embodiment 2
[0049] Such as Figure 4 As shown, this embodiment proposes a clock recovery system in a frequency shift keying adjustment system, and the system includes:
[0050] The decoding module is used to decode the demodulated data in the frequency shift keying adjustment system, and obtain the 1-bit load output data of the frequency shift keying adjustment system;
[0051] The clock self-recovery module is used to automatically recover the clock frequency according to the demodulation signal and the sampling frequency of the frequency shift keying adjustment system, and adjust the clock period after comparing the clock frequency with the time frequency of the load data. When the clock frequency is ahead of When loading data, the clock cycle increases; when the clock frequency lags behind the load data, the clock cycle decreases to obtain a recovered clock signal;
[0052] A crystal oscillator frequency acquisition module, configured to obtain the crystal oscillator frequency accordi...
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