Variable digital phase-shifter and digital velocity corrector fo

Details Variable digital phase-shifter and digital velocity corrector fo Variable digital phase-shifter and digital velocity corrector fo

1986-05-20

1988-04-12

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

328133, 328167, 328170, 307262, 307511, 307350, 358312, 364178, 364825, H03K 513, H03K 522

Patent

active

047377240

ABSTRACT:
A variable digital phase-shifter comprises a variable-propagation-time phase corrector consisting of a nonrecursive transversal digital filter having a predetermined even number N of coefficients. The filter is coupled with an amplitude corrector consisting of a nonrecursive transversal digital bandpass filter with an odd number of coefficients, a multiplier and a summing circuit for correcting the variations in gain of the phase corrector in order to obtain an approximately constant overall gain of the variable digital phase-shifter.

REFERENCES:
patent: 3566285 (1971-02-01), Schroeder
patent: 3997973 (1976-12-01), Buss

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