Signal requantization to reduce the word-length of an audio stream introduces distortions. Noise shaping can be applied in combination with a psychoacoustic model in order to make requantization distortions minimally audible. The psychoacoustically optimal noise shaping curve depends on the time-varying characteristics of the input signal. Therefore, the noise shaping filter coefficients are to...

I. Highly resonant dynamics can severely degrade the performance of technological systems. Structural modes in machines and robots, ground and aerospace vehicles, and precision instrumentation, such as atomic force microscopes and optical systems, can limit the ability of control systems to achieve the desired performance. Consequently, control systems must be designed to suppress the effects o...

Using the idea of ‘shaping the control signal’, the authors generalise the time-delayfilter-based deadbeat control for processes with dead time to a two-level control so that actuator saturation is avoided. The controller mimics experienced manual operation to provide a two-level control signal. At the first stage (level), the controller outputs a value very close to the actuator saturation bou...

In this work, the method of iterative Fourier transform phase reconstruction, conventionally used in holography and optical image reconstruction, is applied to phase only synthesis of antenna patterns. The method is applied to two types of pattern synthesis problems: "main lobe beam shaping" and "side-lobe-level reduction". The proposed method is most useful in the efficient employment of attai...

In this paper, a data-driven model-free design method of PID controller is proposed for a single-input single-output linear time-invariant plant for a loop shaping problem where the integral gain is maximized under the maximum sensitivity constraint. This design problem is reduced to a linear programming problem. The constraints on the PID gains are given from many fictitious data, which are ob...

The purpose of this article is to reduce some technical difficulties related the complexity stability and feasibility analysis Model Predictive Control (MPC) as well relative optimization procedure. new approach based on a two degrees freedom control scheme where output $r(k)$ feedforward input estimator used forcing closed-loop system $\Sigma _f$ . This latter given by feedback connection Line...