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6 Beamforming Combined with Multi-channel Acoustic Echo Cancellation
For audio signal acquisition, beamforming microphone arrays can be efficiently used for enhancing a desired signal while suppressing...
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4 Optimum Beamforming for Wideband Non-stationary Signals
Array processing techniques strive for extraction of maximum information from a propagating wave field using groups of sensors, which are located at...
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B Experimental Setups and Acoustic Environments
In this chapter, the experimental setup and the acoustic environments are described, which are used in this work for illustrating the properties of...
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5 A Practical Audio Acquisition System Using a Robust GSC (RGSC)
In the preceding chapter, we have seen that data-dependent beamformers can be efficiently realized in GSC structures. However, GSCs, or more general...
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3 Optimum Linear Filtering
In this chapter, we introduce the concept of optimum linear filtering for multiple-input multiple-output (MIMO) digital systems for solving...
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8 Summary and Conclusions
Convenient human/machine interaction requires acoustic front-ends which allow seamless and hands-free audio communication. For suppressing...
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A Estimation of Signal-to-Interference-Plus-Noise Ratios (SINRs) Exploiting Non-stationarity
Our discussion about optimum data-dependent beamforming has shown that the second-order statistics of the sensor signals w.r.t. the desired signal...
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2 Space-Time Signals
In single-channel techniques for hands-free acoustic human/machine interfaces, we deal with waveforms which are functions of the continuous time. The...
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7 Efficient Real-Time Realization of an Acoustic Human/Machine Front-End
In the previous chapters, we discussed options for data-dependent optimum beamforming for acoustic human/machine front-ends on cost-sensitive...
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1 Introduction
With a continuously increasing desire for natural and comfortable human/machine interaction, the acoustic interface of any terminal for multimedia or...
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C Notations
The following conventions are used: Lower case boldface denotes vectors, upper case boldface denotes matrices. The subscript (⋅) f...
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Pathological basal ganglia oscillations with time delays: a memoryless feedback control strategy
Pathological basal ganglia oscillations are associated with the hypokinetic motor symptoms of Parkinson’s disease. In this paper, a memoryless...
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Conserving integration of multibody systems with singular and non-constant mass matrix including quaternion-based rigid body dynamics
Mechanical systems with singular and/or configuration-dependent mass matrix can pose difficulties to Hamiltonian formulations, which are the standard...
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Robust current control of single-phase PWM rectifier based on generalized internal model control
Faults in traction system rectifiers can cause deterioration in system performance, robustness, and continuity. A single fault may propagate and...
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Local coordinates on Lie groups for half-explicit time integration of Cosserat-rod models with constraints
Explicit Runge–Kutta methods are the gold standard of time-integration methods for nonstiff problems in system dynamics since they combine a small...
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Quaternion-based finite-element computation of nonlinear modes and frequency responses of geometrically exact beam structures in three dimensions
In this paper, a novel method for computing the nonlinear dynamics of highly flexible slender structures in three dimensions (3D) is proposed. It is...
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Rope–sheave contact transient analysis in hoisting operations with a bristle model and an arbitrary Lagrangian–Eulerian approach
This paper describes the development of a computational model for the rope–sheave contact interaction in reeving systems when the ropes are modeled...
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Stable underactuated biped locomotion on various geometrical surfaces
This paper presents a study of locomotion of a four-link underactuated biped mechanism containing passive knee and actuated hip joints. It is shown...
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The optimal control methodology based on normalized Gaussian functions for vibration-driven locomotion robots
The earthworm-like robot excels in navigating confined spaces for tasks like pipeline inspection and post-disaster rescue, owing to its wheel- and...
