A new sample rate conversion (SRC) method for software radio (SWR) systems is proposed. The method, which uses the window filter design and Lagrange functions, requires fewer computations than other SRC methods over a...
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A new sample rate conversion (SRC) method for software radio (SWR) systems is proposed. The method, which uses the window filter design and Lagrange functions, requires fewer computations than other SRC methods over a range of SRC factors for the wideband and high dynamic range signals that are typical of SWR systems. The computational requirements of the proposed SRC method and other SRC methods are compared and simulation results of the proposed method are discussed.
Speech recognition in noise environment is always inefficient for hearing-impaired people who wear hearing aids. Many noise cancellations have been proposed and studied for such an issue. In this paper, we designed a ...
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Speech recognition in noise environment is always inefficient for hearing-impaired people who wear hearing aids. Many noise cancellations have been proposed and studied for such an issue. In this paper, we designed a prototype of hearing instrument coupler to imitate the equivalent volume of the human ear, and built a feedforward active noise cancellation system (FANCs) that had the algorithm implemented with a digital signal processor (DSP) controller. The hearing instrument coupler is used to study the FANCs efficiency applied to real hearing aids. It is a chamber with an effective volume of 2cc specified by International Electrotechnical Commission (IEC) standard. The FANCs includes a reference microphone, an error microphone, a canceling loudspeaker and a DSP controller. The results show that the hearing instrument coupler could simulate an ear with hearing aid, and the FANCs could suppress the unwanted noise effectively to enhance speech recognition.
This paper addresses some aspects of the issue of anthropometrical accuracy in digitalhumanmodeling manikins as expressed in a proposed European draft prEN ISO 15536. Some problems and possible solutions are illustr...
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The 3D digitalhuman model RAMSIS, which is primarily used in the automotive industry, has been used to predict probable pilot behavior in a proposed cockpit design for the Eclipse 500 jet. The results were used to de...
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Nowadays digitalhuman models (DHM) have become a practical tool for design of human-machine interfaces and work environments. With growing importance of computer-aided design, electronic mock-ups, and rapid prototypi...
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This paper addresses conceptually how and why it would be beneficial to link human process models to human figure models. Furthermore, we discuss how the composite of these two types of models could be useful in evalu...
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Vehicle seat belt efficacy relates directly to the extent that occupant anthropometric dimensions align with the seat belt geometric design. Transport Canada researched and developed a Belt Fit Test Device (BTD) to as...
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This paper presents an efficient numerical formulation for the prediction of realistic postures. This problem is defined by the method (or procedure) used to predict the posture of a human, given a point in the reacha...
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We propose a general framework for blind watermark detection. This framework contains a maximum-likelihood detector that utilizes the probability distribution of the original image. Other watermark detectors in litera...
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ISBN:
(纸本)9781581133936
We propose a general framework for blind watermark detection. This framework contains a maximum-likelihood detector that utilizes the probability distribution of the original image. Other watermark detectors in literature are shown to be special cases of this framework. We demonstrate this framework in both the pixel domain and the transform domain, and show that our detector outperforms others because of 1) better modeling of the probability distribution of the original image, and 2) consideration to the human visual system in this framework.
Manufacturers are forced to reduce the time-to-market and time-to-customer of their products. At the same time the market requires shorter product life cycles (Milberg 1994). To meet these challenges manufacturers mus...
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