NDLI: Visual Detection of Chart-Recorded Signals in the Presence of Noise

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Visual Detection of Chart-Recorded Signals in the Presence of Noise

Content Provider	IEEE Xplore Digital Library
Author	Blatter, H.
Copyright Year	1963
Abstract	A series of experiments for the purpose of determining the limiting sensitivity of seismic detection systems developed the following criteria for the visual detectability of permanent chart-recorded sinusoidal signals in the presence of bandlimited random noise. 1) The visual detection process is capable of discriminating against unwanted signals or noise outside of some frequency band of interest. 2) This discriminatory ability of the visual detection process can be represented by a filter with a geometric-mean center frequency of 0.2 cycles/mm and an effective bandwidth of 3 octaves. 3) For a sinusoidal signal to be detectable within the bandpass of this visual filter a signal-to-noise ratio of 2 is required. 4) The above criteria are applicable to sinusoidal signals 3 cycles in duration or greater.
Starting Page	89
Ending Page	93
Page Count	5
File Size	919325
File Format	PDF
ISSN	00189413
Volume Number	5
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1967-12-01
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Signal detection Signal processing Signal to noise ratio Temperature measurement Gravity measurement Frequency Band pass filters Geoscience Laboratories Scattering
Content Type	Text
Resource Type	Article
Subject	Medicine

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