Precision harmonic rejecting demodulator with digital phase alig

Details Precision harmonic rejecting demodulator with digital phase alig Precision harmonic rejecting demodulator with digital phase alig

1982-10-20

1986-01-21

LaRoche, Eugene R.

Demodulators

Amplitude modulation demodulator

Having specific distortion, noise or other interference...

329146, 329167, H03D 318

Patent

active

045659702

ABSTRACT:
A low-cost, two-axis rate and acceleration sensor utilizing piezoelectric generator elements affixed to a rotating structure and generating a periodic signal having an amplitude representing the rates and accelerations. A demodulator dividing the period of the signal into a plurality of segments and regenerating selected ones of the signal segments in accordance with a predetermined pattern stored in a fixed store, the regenerated signal segments being filtered to produce rate and acceleration analog voltages.

REFERENCES:
patent: 3631355 (1971-12-01), Vail
patent: 4194161 (1980-03-01), Hershberger

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