Frequency tracking and filtering for a room-temperature resonant gravitational wave antenna

Details Frequency tracking and filtering for a room-temperature resonant gravitational wave antenna Frequency tracking and filtering for a room-temperature resonant gravitational wave antenna

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989rsci...60..198f&link_type=abstract

Review of Scientific Instruments (ISSN 0034-6748), vol. 60, Feb. 1989, p. 198-201.

Physics

3

Gravitational Wave Antennas, Matched Filters, Signal To Noise Ratios, Narrowband, Parameter Identification, Resonant Frequencies, Temperature Effects, Tracking Filters

Scientific paper

A room-temperature gravitational-wave antenna has been operated, almost continuously, for three years at Rome University. The data taken are the signal and noise near the first longitudinal mode of the cylinder. Some parameters of the antenna, like the transduction coefficient and the resonance frequency, change with the external temperature. A method to track the frequency and to estimate the parameters is presented, and the matched filter is derived.

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