Active Filters Applied to Helicopter Noise Reduction.
Research and development technical rept.,
ARMY ELECTRONICS COMMAND FORT MONMOUTH N J
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Two active filter resonators of the negative feed-back type are evaluated. Claimed stability in literature and design formulas are verified by an active filter breadboard. Requirements for a passive L-C filter, developed for avionics equipment, were used as design objectives. The desired response was realized using two resonator types. A hybrid version of the active filter was designed and fabricated to establish that microminiaturization was feasible without any degradation in performance. Author
- Electrical and Electronic Equipment
- Radio Communications