Method and apparatus for measurement of attenuation and distortion by a test object
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United States of America Patent
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Jun 23, 1981
Grant Date -
N/A
app pub date -
Oct 24, 1979
filing date -
Nov 13, 1978
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for measurement of transmission characteristics consists of supplying a test pulse to an object under test and measuring the pulse at the output of the object under test with the assistance of Fourier analysis. The test pulse is made up of a plurality of components which are equally spaced apart in frequency, and the initial phase values of each of the components are chosen so as to reduce loading of the object under test to an acceptable level. Evaluation of the test pulse at the output of the object under test yields attenuation and phase shift characteristics for each component frequency.
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