Adaptive nonlinear frequency domain filter with low phase loss

Details Adaptive nonlinear frequency domain filter with low phase loss Adaptive nonlinear frequency domain filter with low phase loss

1988-07-28

1990-09-04

Callahan, Timothy P.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

307521, 328167, 328162, 328139, H03K 500, H03K 100

Patent

active

049547321

ABSTRACT:
A nonlinear frequency domain filter serving for the suppression of unwanted signals which are superposed on a wanted signal variable in a given frequency range. The frequency domain filter comprises linear transmission members and a dead-zone member. With the filter, the zero point of the dead-zone member, to which the input signal to be filtered is supplied, follows proportionally the output signal of a pass-band filter connected in parallel with the dead-zone member. Further, the output signal of the pass-band filter is added to the output signal of the dead-zone member.

REFERENCES:
patent: 3716726 (1973-02-01), Trimble
patent: 3851259 (1974-11-01), Porawski
patent: 3911776 (1975-10-01), Beigel
patent: 4035734 (1977-07-01), Flormann et al.
patent: 4277695 (1981-07-01), Wilber et al.
patent: 4513249 (1985-04-01), Baghdady
patent: 4625238 (1986-11-01), Penney

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