Error correcting method for a digital time series

Details Error correcting method for a digital time series Error correcting method for a digital time series

1986-07-24

1988-06-07

Smith, Jerry

Excavating

360 53, G06F 1100

Patent

active

047501804

ABSTRACT:
An analog signal is oversampled as a digital time series. The data samples are divided into an even and an odd sequence. Each sequence is independently low-pass filtered and the resulting two reconstructed sequences will be identical to each other and to the original if no isolated error is present in the original sequence. When the three sequences are not equal, an error exists. By noting the location or sample number of the error, the exact location of the error can be determined and the correctly reconstructed sample value can be used to replace the erroneous sample in the original sequence.

REFERENCES:
patent: 4211997 (1980-07-01), Rudnick
patent: 4430736 (1984-02-01), Scholz
patent: 4670880 (1987-06-01), Jitsukawa
Halpenny, "A Method of Editing Time Series Observations", Geophysics, vol. 49, No. 5, pp. 521-524.
Nyman, "The Interpolation Error Operator", Time Series Error Detection and Correction, Geophysics, vol. 42, No. 4, pp. 773-777.

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