Advanced waveform observation system using waveform smoothing wi

Details Advanced waveform observation system using waveform smoothing wi Advanced waveform observation system using waveform smoothing wi

1991-07-08

1992-07-14

McGraw, Vincent P.

Optics: measuring and testing

For optical fiber or waveguide inspection

G01N 2188

Patent

active

051297213

ABSTRACT:
According to this invention, a waveform data input section inputs sequential discrete waveform data to be observed. A level restricting section determines whether a level of the other data in a predetermined data period including a predetermined number of data continuous to one data of the discrete waveform input data is existed or not within a predeter mined restriction value using a level of the one data as reference level, directly outputs the data when the level of the data is existed within the predetermined restriction value, and restricts the level of the data within the predetermined restriction value to output the data when the level of the data is not existed within the predetermined restriction value. A averaging section averages the predetermined number of data output by the level restricting section. A control section sequentially shifts a sequence of the one data having the reference level in a determining operation of the level restricting section, thereby obtaining output data by smoothing the waveform data to be observed from an averaging section. A display section displays, under the control of the control section, the output data obtained by smoothing the waveform data and output from the averaging section.

REFERENCES:
Applied Spectroscopy, vol. 38, No. 1, 1984, "Adaptive Smoothing of Spectroscopic Data by a Linear Mean-Square Estimation", pp. 49-58.

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