Method and apparatus for determining a signal of uniform period

Details Method and apparatus for determining a signal of uniform period Method and apparatus for determining a signal of uniform period

1977-08-05

1978-10-17

Tubbesing, T.H.

Communications: radio wave antennas

Antennas

Balanced doublet - centerfed

324 78Z, G01S 924

Patent

active

041212118

ABSTRACT:
The periods of several successive cycles of an alternating signal are determined and used to calculate the value corresponding to the statistical variance thereof. The deviation value is compared with a preselected value corresponding to the maximum variance expected of an alternating signal with a substantially uniform period. If the preselected value exceeds the computed value, an alternating signal with a uniform period is present while if the computed value exceeds the preselected value an alternating signal with a non-uniform period is present.

REFERENCES:
patent: 3699949 (1972-10-01), O'Hanlon, Jr. et al.
patent: 4031464 (1977-06-01), Norberg

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