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

Journal Article · Tue Jan 31 23:00:00 EST 1989 · Rev. Sci. Instrum.; (United States)

DOI:https://doi.org/10.1063/1.1140460· OSTI ID:6795620

Frasca, S; Gabellieri, M

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 ..nu../sub A/ of the cylinder. Some parameters of the antenna, like the transduction coefficient ..cap alpha.. and the resonance frequency ..nu../sub A/, change with the external temperature. A method to track the frequency ..nu../sub A/ and to estimate the parameters is presented, and the matched filter is derived.

• Research Organization: Dipartimento di Fisica ''G. Marconi'' Universita ''La Sapienza,'' Rome, Italy
• OSTI ID: 6795620
• Journal Information: Rev. Sci. Instrum.; (United States), Journal Name: Rev. Sci. Instrum.; (United States) Vol. 60:2; ISSN RSINA
• Country of Publication: United States
• Language: English

Related Subjects

640106* -- Astrophysics & Cosmology-- Cosmology
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANTENNAS
DESIGN
DETECTION
ELECTRICAL EQUIPMENT
EQUIPMENT
GRAVITATIONAL WAVE DETECTORS
GRAVITATIONAL WAVES
MEASURING INSTRUMENTS
OPERATION
RADIATION DETECTORS
SIGNAL-TO-NOISE RATIO
TEMPERATURE EFFECTS
TRANSDUCERS