Results 161 to 170 of about 1,171,117 (197)
Some of the next articles are maybe not open access.
Adaptive Bayesian Channel Gain Cartography
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2018Channel gain cartography relies on sensor measurements to construct maps providing the attenuation profile between arbitrary transmitter-receiver locations. Existing approaches capitalize on tomographic models, where shadowing is the weighted integral of a spatial loss field (SLF) depending on the propagation environment.
Donghoon Lee +2 more
openaire +1 more source
EPSAC‐controlled anesthesia with online gain adaptation
International Journal of Adaptive Control and Signal Processing, 2008AbstractThis paper presents the application of predictive control to drug dosing during anesthesia in patients undergoing surgery. A single‐input (propofol) single‐output (bispectral index (BIS)) model of the patient has been assumed for prediction.
Nino, J. +4 more
openaire +3 more sources
Adaptive time gain compensation for ultrasonic imaging
Ultrasound in Medicine & Biology, 1992The quality of ultrasonic images is often adversely affected by incorrect time gain compensation (TGC) settings. TGC set up by the operator is inadequate for two reasons: firstly, one gain function is unlikely to be appropriate for all the scan lines in an image and secondly, the operator may not have sufficient time or experience to optimise it ...
S D, Pye, S R, Wild, W N, McDicken
openaire +2 more sources
High-gain adaptive position control
International Journal of Control, 2011High-gain adaptive position control is proposed for a stiff one-mass system (1MS) and an elastic two-mass system (2MS). The control objective is (load-side) position reference tracking and disturbance rejection (of load torques and friction). Position and speed are available for feedback.
openaire +1 more source
Spatial frequency adaptation and contrast gain control
Vision Research, 1993Spatial frequency adaptation is shown to cause a decrease in the exponent of the power law describing contrast increment thresholds. Next we show that spatial frequency adaptation produces almost no threshold elevation at a 30 msec test duration but a normal threshold elevation at 500 msec.
H R, Wilson, R, Humanski
openaire +2 more sources
Physics World, 1992
One of the last obstacles in ground-based astronomy is turbulence of the Earth's atmosphere. Fortunately, the degradation in imaging quality, known as "seeing", caused by this turbulence can be compensated in real-time by a technique called adaptive optics.
openaire +1 more source
One of the last obstacles in ground-based astronomy is turbulence of the Earth's atmosphere. Fortunately, the degradation in imaging quality, known as "seeing", caused by this turbulence can be compensated in real-time by a technique called adaptive optics.
openaire +1 more source
Gain Scheduling and Adaptation
2011This chapter introduces gain-scheduling and linear-parameter-varying techniques to address plant variability across the flight envelope. This chapter also introduces the concept of adaptive control and presents a basic model-reference adaptive control design.
openaire +1 more source
Adaptive-Gain Observers and Applications
2007We distinguish two kinds of observers for nonlinear systems which are used by scientists and engineers: empirical observers and converging observers.
Boizot, Nicolas, Busvelle, Eric
openaire +2 more sources
High-Gain Adaptive Stabilization
2017This chapter presents the basic idea of classical high-gain adaptive stabilization (or high-gain adaptive control) of linear time-invariant (LTI) single-input single-output (SISO) systems. LTI SISO systems of form (5.88) with direct feedthrough (i.e. \(d\ne 0\)) are of marginal relevance for plant modeling in mechatronics.
openaire +1 more source
High-gain adaptive control: A derivative-based approach
2008 47th IEEE Conference on Decision and Control, 2008We propose an adaptive scheme which is a counterpart of existing high gain control techniques based on control Lyapunov functions. Given a control Lyapunov function, the main idea is that of tuning the feedback gain according to a suitably-chosen Lyapunov time-derivative.
F. BLANCHINI +3 more
openaire +4 more sources