Method and apparatus for measurement of attenuation and distorti

Details Method and apparatus for measurement of attenuation and distorti Method and apparatus for measurement of attenuation and distorti

1979-10-24

1981-04-28

Krawczewicz, Stanley T.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

G01R 2700

Patent

active

042648599

ABSTRACT:
A method for measuring the transmission characteristics of an object under test consists of applying a test pulse to the input of an object under test which has a filter characteristic, and evaluating the test pulse when it is produced at the output. The test pulse is made up of a plurality of component frequencies at equally spaced intervals, and the components which lie within the region of the edge of the pass band of the filter characteristic have greater amplitudes than the components which lie within the central portion of the pass band of the filter characteristic. Evaluation of the test pulse at the output of the object under test yields the attenuation and phase characteristics of the object under test for each component frequency.

REFERENCES:
patent: 3769580 (1973-10-01), Black
patent: 4028625 (1977-06-01), Berhrend
patent: 4090126 (1978-05-01), Poticha et al.
French, Transfer Function Measurement Using Fast Pulses, Electronic Engineering, Aug. 1966, pp. 516-519.
Cochran, Measuring Waveform Distortion With a PAR Meter, Bell Laboratories Record, Oct. 1965, pp. 369-371.
Characteristics of an Impulse-Noise Measuring Instrument for Wideband Data Transmissions, CCI Recommendation, Recommendation 0.81, vol. IV. 2, pp. 44-50.
Ebersberger, Impedance-Matching Measurements with Sweep-Generator Assembly Polyskop III SWOB, News from Rhode & Schwarz, vol. 12, No. 53, 1972, pp. 19-23.

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