ACTIVE FILTER ELEMENT AND ITS APPLICATION TO A FOURIER COMB
An active bandpass filter was developed with the desirable feature of wide Q control over the range of frequencies extending to -4 kc. The Q was made as high as 250 with good stability characteristics over this range. The flexibility of the filter was illustrated by the construction of a filter bank tuned to select Fourier components of a 50-cps periodic wave in a typical noise environment and recombine them with no added relative phase shift and with equal gain to improve the signal-to-noise ratio. (auth)
- Research Organization:
- Oak Ridge National Lab., Tenn.
- Sponsoring Organization:
- USDOE
- NSA Number:
- NSA-15-015816
- OSTI ID:
- 4034083
- Journal Information:
- Rev. Sci. Instr., Journal Name: Rev. Sci. Instr. Vol. Vol: 32
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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