Title :
Time-Notch Filtering
Author :
Smith, Albert A., Jr. ; Tuchman, Walter L.
Author_Institution :
IBM Corporation, Kingston, N. Y. 12401
fDate :
5/1/1970 12:00:00 AM
Abstract :
A method is described for measuring low-level time-truncated signals by using narrow-bandwidth synchronous time-notch filters. These filter systems, intended for use with ordinary narrowband receivers or field intensity meters, provide a means of isolating time-truncated signals of interest from adjacent interfering signals. In addition, the important property of near optimum sensitivity (approaching that of a matched filter) is discussed, and the laboratory results of a low-frequency time-notch filter covering the 500-Hz to 2-MHz range are given.
Keywords :
Bandwidth; Correlators; Electromagnetic compatibility; Filtering; Frequency; Matched filters; Narrowband; Signal resolution; Switches; Testing;
Journal_Title :
Electromagnetic Compatibility, IEEE Transactions on
DOI :
10.1109/TEMC.1970.303038