Now showing items 1070-1089 of 1777

  • A New Phase Shifting Technique for Deep UV Excimer Laser Based Lithography 

    Bor, Zsolt; Cavallaro, Joseph R.; Erdelyi, Miklos; Kido, Motoi; Sengupta, Chaitali; Smayling, Michael; Szabo, Gabor; Tittel, Frank; Wilson, William (1995-02-01)
    This paper reports simulation and experimental details of a novel phase shifting technique based o laser interferometry. Phase shifting is one of the most promising techniques for the fabrication of high density DRAM's. ...
  • New Real-Time Robot Motion Algorithms Using Parallel VLSI Architectures 

    Deo, Arati S.; Cavallaro, Joseph R.; Walker, Ian D. (1991-03-01)
    Real time robot control presents a major numerical challenge. The inverse kinematics problem of determining joint motion for a specified end effector trajectory is formulated as a damped least-squares problem which balances ...
  • New Signal-Space Orthonormal Bases via the Metaplectic Transform 

    Baraniuk, Richard G.; Jones, Douglas L. (1992-10-01)
    The discretization of the metaplectic transform (MT) is considered, and it is shown that it can lead to completely new orthonormal bases (ONBs) for the signal space of square integrable functions. Two new classes of bases, ...
  • New Spread Spectrum Techniques for Multiple Antenna Transmit Diversity 

    Rajan, Dinesh; Erkip, Elza; Aazhang, Behnaam (1999-12-20)
    We propose a new scheme for multiple antenna transmission in the context of spread spectrum signaling. The new scheme consists of using shifted Gold sequences to modulate independent information on the multiple atennas. ...
  • New techniques for digital filter design 

    Selesnick, Ivan William (1996)
    Several new techniques for open problems in the frequency domain design of FIR and IIR digital filters, both iterative and analytic, are presented. This thesis begins by putting forth the notion that explicitly specified ...
  • Noise Reduction Using an Undecimated Discrete Wavelet Transform 

    Lang, Markus; Guo, Haitao; Odegard, Jan E.; Burrus, C. Sidney; Wells, R.O. (1995-01-15)
    A new nonlinear noise reduction method is presented that uses the discrete wavelet transform. Similar to Donoho and Johnstone, we employ thresholding in the wavelet transform domain but, following a suggestion by Coifman, ...
  • Noise suppression and motion estimation in medical ultrasound imaging 

    Yue, Yong (2007)
    Echocardiographic imaging is a primary modality in the diagnosis of heart disease. Compared to other imaging techniques, such as X-Ray, MRI, and PET, ultrasound imaging owes its great popularity to the fact that it is a ...
  • Non-coherent and Partially Coherent Space-Time Constellations 

    Borran, Mohammad Jaber (2003-06-01)
    With the rapid growth of wireless networks and multimedia applications, next generation cellular systems are expected to support data rates that are orders of magnitude higher than those currently available. Due to the ...
  • Non-coherent and partially coherent space-time constellations 

    Borran, Mohammed Jaber (2004)
    With the rapid growth of wireless networks and multimedia applications, next generation cellular systems are expected to support data rates that are orders of magnitude higher than those currently available. Due to the ...
  • Non-invasive IC tomography using spatial correlations 

    Shamsi, Davood (2010)
    We introduce a new methodology for post-silicon characterization of the gate-level variations in a manufactured Integrated Circuit (IC). The estimated characteristics are based on the power and the delay measurements that ...
  • Non-Redundant, Linear-Phase, Semi-Orthogonal, Directional Complex Wavelets 

    Fernandes, Felix; Wakin, Michael; Baraniuk, Richard G. (2004-05-01)
    The directionality and phase information provided by non-redundant complex wavelet transforms (NCWTs) provide significant potential benefits for image/video processing and compression applications. However, because existing ...
  • Noncoherent image denoising 

    Hua, Gang (2005)
    The techniques of Translation Invariant (TI) denoising and statistical modeling are widely used in image denoising. This thesis studies how these techniques exploit location information in images and identifies a class of ...
  • Nonlinear Dynamic Theory for Photorefractive Phase Hologram Formation 

    Kim, Dae M.; Shah, Rajiv R.; Rabson, Thomas A.; Tittel, Frank K. (1976-01-20)
    A nonlinar dynamic theory is developed for the formation of photorefractive volume phase holograms. A feedback mechanism existing between the photo-generated field and free electron density, treated explicitly yields the ...
  • Nonlinear elastic buckling and postbuckling analysis of cylindrical panels 

    Zhou, Yang; Stanciulescu, Ilinca; Eason, Thomas; Spottswood, Michael (2015)
    This paper revisits the buckling analysis of a benchmark cylindrical panel undergoing snap-through when subjected to transverse loads. We show that previous studies either overestimated the buckling load and identified a ...
  • Nonlinear Fault Detection for Hydraulic Systems 

    Leuschen, Martin L.; Walker, Ian D.; Cavallaro, Joseph R. (2003-01-01)
    One of the most important areas in the robotics industry is the development of robots capable of working in hazardous environments. As humans cannot safely or cheaply work in these environments, providing a high level ...
  • Nonlinear Fault Detection for Hydraulics: Recent Advances in Fault Diagnosis and Fault Tolerance for Mechatronic Systems 

    Leuschen, Martin L.; Walker, Ian D.; Cavallaro, Joseph R. (2002-10-01)
    One of the most important areas in the robotics industry is the development of robots capable of working in hazardous environments. As humans cannot safely or cheaply work in these environments, providing a high level ...
  • Nonlinear phase FIR filter design with minimum LS error and additional constraints 

    Lang, Markus; Bamberger, Joachim (1994-07-01)
    We examine the problem of approximating a complex frequency response by a real-valued FIR filter according to the <i>L<sub>2</sub></i> norm subject to additional inequality constraints for the complex error function. ...
  • Nonlinear Processing of a Shift Invariant DWT for Noise Reduction 

    Lang, Markus; Guo, Haitao; Odegard, Jan E.; Burrus, C. Sidney; Wells, R.O. (1995-04-20)
    A novel approach for noise reduction is presented. Similar to Donoho, we employ thresholding in some wavelet transform domain but use a nondecimated and consequently redundant wavelet transform instead of the usual orthogonal ...
  • Nonlinear Processing of a Shift Invariant DWT for Noise Reduction 

    Lang, Markus; Guo, Haitao; Odegard, Jan E.; Burrus, C. Sidney; Wells, R.O. (1995-03-20)
    A novel approach for noise reduction is presented. Similar to Donoho, we employ thresholding in some wavelet transform domain but use a nondecimated and consequently redundant wavelet transform instead of the usual orthogonal ...