Abstract—This paper introduces a method for canceling the parasitic capacitance of integrated common mode (CM) filter by optimizing the layout of ground winding. Firstly, the CM filter with positive or negative coupling between the ground and inductor winding is researched, respectively. Then, the two coupling polarizes are combined to form the bi-directional coupling, simulation and measured r...

Active noise control in a one dimensional acoustic duct, in which fluid medium inside the duct has a mean flow velocity, is studied. The acoustic duct model with general boundary conditions is solved in Laplace domain and infinite dimensional system transfer functions are obtained. For controller designs, appropriate microphone, and noise canceling source locations are determined. Low order fin...

When a system must process spoken language in natural environments that involve different types and levels of noise, the problem of supporting robust recognition is a very difficult one. In the present studies, over 2,600 multimodal utterances were collected during both mobile and stationary use of a multimodal pen/voice system. The results confirmed that multimodal signal processing supports s...

The separation of signals from noisy vector measurements is obtained by taking advantage of the Middleton Class A model of noise amplitude and the correlation of the components of the noise process due to their polarization. The signal is assumed to be white Gaussian. Noise is a superposition ofM non-Gaussian processes, each with a fixed azimuth of polarization. Neither the number of processes ...

This paper presents a noise cancellation method based on the ability to efficiently cancel a close target speaker contribution from the signals observed at a microphone array. The proposed method exploits this specificity in the case of the hands-free speech interface when the target user is close to the microphone array and the noise is a diffuse background noise. This method is in particular ...

This paper presents two new scaling algorithms for the minimum cost network flow problem, one a primal cycle canceling algorithm, the other a dual cut canceling algorithm. Both algorithms scale a relaxed optimality parameter, and create a second, inner relaxation. The primal algorithm uses the inner relaxation to cancel a most negative node-disjoint family of cycles w.r.t. the scaled parameter,...

Nonlinear effects, or non-Wiener behavior, have been observed in several adaptive filtering applications, such as adaptive equalization of wideband communication signals contaminated by narrowband interference, adaptive narrowband noise cancellation, and adaptive linear prediction of narrowband processes. The nonlinear effects have been especially prominent when narrowband processes have been i...

The technique of multireference adaptive noise canceling (MRANC) is applied to enhance transient nonstationarities in the electroencephalogram (EEG), with the adaptation implemented by means of a multilayer-perceptron artificial neural network (ANN). The method was applied to recorded EEG segments and the performance on documented nonstationarities recorded. The results show that the neural net...

This paper presents an inductorless low-noise amplifier (LNA) design for an ultra-wideband (UWB) receiver frontend. A current-reuse gain-enhanced noise canceling architecture is proposed, and the properties and limitations of the gainenhancement stage are discussed. Capacitive peaking is employed to improve the gain flatness and 3-dB bandwidth, at the cost of absolute gain value. The LNA circui...

This paper investigates a new microphone array processing technique specifically for the purpose of speech enhancement and recognition. The main objective of the proposed technique is to improve the low frequency directivity of a conventional adaptive beamformer, as low frequency performance is critical in speech processing applications. The proposed technique, termed near-field adaptive beamfo...