Title :
Reducing the effects of record truncation discontinuities in waveform reconstructions
Author :
Paulter, Nicholas G., Jr. ; Stafford, Robert B.
Author_Institution :
Nat. Inst. of Stand. & Technol., Boulder, CO, USA
fDate :
6/1/1993 12:00:00 AM
Abstract :
Record truncation discontinuities (RTDs) are artifacts in recorded data caused by the difference between the values of the data at the two ends of the record. The RTD causes errors in waveform reconstructions, in particular, in digital reconstructions that use a deconvolution process. The effects of the RTDs on reconstructions of discrete-time waveforms are examined. Four previously proposed methods for reducing the effects of RTD on the spectra of step-like waveforms are examined for application in deconvolution, and a comparison of their effects in deconvolution is given. An analysis of the errors is given for each case
Keywords :
fast Fourier transforms; signal processing; waveform analysis; Nahman-Gans; Nicolson ramp subtraction; deconvolution process; digital reconstructions; discrete Fourier transform; discrete-time waveforms; errors; noise; record truncation discontinuities; step-like waveforms; time windowing; waveform reconstructions; Convolution; Deconvolution; Electric variables measurement; Frequency measurement; Instruments; Oscilloscopes; Pulse measurements; Signal analysis; Time domain analysis; Time measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
