Method for eliminating interference during signal sampling
A technology for eliminating signals and sampling values, applied in measuring devices, instruments, measuring electrical variables, etc., and can solve problems such as interference, signal interference, and misjudgment of interference values as true values.
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[0015] Refer to the attached figure 1 , the sampled signal Bit0~Bit3, that is, 4 groups of signals are sampled in one sampling period, the sampling register Sample0~3, a group of 4.
[0016] Description of the sampling process:
[0017] 1. Use four consecutive clock cycles, that is, use four consecutive working cycles to complete four samplings of Bit0, and write to Sample0 to Sample3 in sequence.
[0018] 2. Compare the values stored in the four registers Sample0, Sample1, Sample2, and Sample3. If they are the same, determine the value as the sampling value of Bit0. If they are different, the sampling value is invalid and discarded.
[0019] 3. Sample Bit1 in the next four clocks, and write to Sample0, Sample1, Sample2, and Sample3 in sequence.
[0020] 4. Compare the values stored in the four registers Sample0, Sample1, Sample2, and Sample3. If they are the same, determine the value as the sampling value of Bit1. If they are different, the sampling value is invalid and...
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