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Full-duplex communication is realized by using ASK modulation for downlink (the channel from controller to the implant) and by using FSK modulation for uplink (from implant to the controller). The ASK modulation is done at the remote powering frequency and ...
In this paper, we present a calibration technique for controlling the magnetic field emitted by an antenna without measuring that magnetic field or the current through the antenna. Using a predictive algorithm and without adding hardware to perform test me ...
As audio reproduction systems evolve to incorporate many loudspeakers, the potential to evoke faithful auditory spatial impressions increases. Psychoacoustic principles of auditory spatial perception, and methods for production and reproduction of acoustic ...
Power amplifiers are a highly important component in a range of industrial applications, such as, servo-drives, magnetic resonance imaging, energy systems, and audio. The control system for power amplifiers should satisfy a range of requirements, e. g., of ...
With the advance in microelectronics and microsystems, better instruments in every domain are designed and built. For many years, scientists have tried to understand nature, and engineers to mimic the perfect design. One example of this is the human knee, ...
At low frequencies, standing waves within the room cause large frequency-response variations in the listening environment, such as audio rooms or recording studios. This unwanted phenomenon has a significant impact on the sound quality of an audio system. ...
A new approach for linear amplification with nonlinear components (Z-LINC) that provides a zero capacitive load to their power amplifiers is proposed. The zero capacitive loading over the whole power back-off range enables to overcome the efficiency deteri ...
This work aims at investigating the automatic recognition of speaker role in meeting conversations from the AMI corpus. Two types of roles are considered: formal roles, fixed over the meeting duration and recognized at recording level, and social roles rel ...
A 2.4-GHz low power polar transmitter architecture is proposed in this paper. A dynamic biasing circuit, controlled by a digital envelope signal, is used to linearize the input-output characteristic of the overdriven class-C power amplifier. A model of the ...
The influence of leading edge sheet cavitation and supercavitation on the added mass effects experienced by a 2-D NACA0009 truncated hydrofoil has been experimentally investigated in a hydrodynamic tunnel. A non-intrusive excitation and measuring system ba ...
