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Frequency Tuning of Hearing in the Beluga Whale
2016Data on frequency tuning in odontocetes are contradictory: different authors have reported filter qualities from 2 to almost 50. In this study, frequency tuning was measured in a beluga whale (Delphinapterus leucas) using a rippled-noise test stimulus in conjunction with the auditory evoked potential (AEP) technique.
Evgeniya V, Sysueva +3 more
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A Frequency Domain Approach for MPC Tuning
2012This paper presents a frequency domain based approach to tune the penalty weights in the model predictive control (MPC) formulation. The two-step tuning method involves the design of a favourite controller taking into account the model-plant mismatch followed by the controller matching.
Ozkan L., Meijs J., Backx A.C.P.M.
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Measurement Techniques, 2009
An automatic tuning system for a cavity in a passive hydrogen frequency standard is considered, which uses the excitation signal with phase modulation. Numerical and experimental tests have shown that the performance of this system is dependent on the extent of spectrum distortion resulting from the signal and asymmetry of the resonance curve in the ...
V. I. Vasil’ev +3 more
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An automatic tuning system for a cavity in a passive hydrogen frequency standard is considered, which uses the excitation signal with phase modulation. Numerical and experimental tests have shown that the performance of this system is dependent on the extent of spectrum distortion resulting from the signal and asymmetry of the resonance curve in the ...
V. I. Vasil’ev +3 more
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Frequency tuning in a frog vestibular organ
Nature, 1983Several distinct mechanisms have evolved in the auditory periphery to extract frequency information from a sound. In the mammalian cochlea, a travelling wave on the basilar membrane enhanced by a physiologically vulnerable neuromechanical interaction performs the primary frequency separation.
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Electron tuning of frequency in gyrotrons
International Journal of Infrared and Millimeter Waves, 1993Formulas for shifts of gyrotron autooscillation frequency due to change of electron beam parameters are presented. The frequency shifts can be commensurable with the frequency band of the beam-unloaded cavity. The autooscillation frequency is most sensitive to the change of the magnetic field, less to the change of the anode voltage and least to the ...
I. I. Antakov +2 more
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Development of frequency tuning in the auditory periphery
Current Opinion in Neurobiology, 1992The peripheral auditory organ, the cochlea, acts as a spectral analyzer resolving the frequency components of sound. During development the cochlea first responds to loud low-frequency sounds, and only gradually acquires the adult pattern of increased sensitivity and an expanded high-frequency range.
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Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 1996
Abstract Tuning curves of diode lasers were measured using a special set-up operating under full computer control. A model was developed describing diode laser frequency when temperature and/or current are changing. A residual as small as 0.005 cm−1 between the measured and predicted spectral line frequency of the molecule under investigation was ...
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Abstract Tuning curves of diode lasers were measured using a special set-up operating under full computer control. A model was developed describing diode laser frequency when temperature and/or current are changing. A residual as small as 0.005 cm−1 between the measured and predicted spectral line frequency of the molecule under investigation was ...
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Squeezing by tuning the oscillator frequency
Journal of Physics A: Mathematical and General, 1990The author examines the possibility of generating squeezed states out of coherent states by external changes of the oscillator frequency. Using the evolution operator method developed by Cheng and Fung, he investigates the evolution of a coherent state of a time-dependent harmonic oscillator as well as its squeezing and coherence property. Two specific
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A frequency meter for visual tuning
Journal of Scientific Instruments, 1934An apparatus is described which determines, by the flashing of a neon discharge lamp, the difference of frequency of the fundamental pitch of a given sound wave from that of a fixed standard of frequency by the operation of one manual control.
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