Now showing items 632-651 of 2899

    • Design of oversampled multichannel filter banks 

      von Borries, Ricardo Freitas (2005)
      This thesis introduces a general approach for the design of oversampled multichannel filter banks including one-dimensional and nonseparable multidimensional filter banks, as well as filter banks with linear phase and ...
    • Design of prototyping platforms for multiple antenna wireless communications 

      Murphy, Patrick O. (2005)
      As the demand for higher performance wireless communications continues to grow, novel algorithms have been developed which provide increased performance and efficiency. One such class of algorithms involves the use of ...
    • DESIGN OF ROBUST FEEDBACK SYSTEMS FOR ROBOT ARM MANIPULATOR 

      OUDJEHANE, BADREDDINE (1986)
      The principal problem is the control of a nonlinear system with uncertainty. We will consider a robot manipulator system, which is nonlinear, and uncertain (unknown parameters and modeling errors). Our goals are to come ...
    • Design of Space Time Codes With Optimal Coding Gain 

      Mukkavilli, Krishna Kiran; Aazhang, Behnaam; Ionescu, Michael D. (2000-09-20)
      Space time codes have been proposed in the literature as an efficient means for improving the data rates over fading channels with multiple transmit antennas. In particular, the rank and the determinant of code difference ...
    • Design of space-time codes with optimal coding gain 

      Mukkavilli, Krishna Kiran; Ionescu, Michael D.; Aazhang, Behnaam (2000-10-20)
      Space time codes have been proposed in the literature as an efficient means for improving the data rates over fading channels with multiple transmit antennas. In particular, the rank and the determinant of code difference ...
    • Design of the Transit Access Point Hardware Platform 

      Murphy, Patrick; Frantz, Patrick; Aazhang, Behnaam (2005-09-01)
      Our objective is to design, analyze, prototype and experimentally study the theoretical underpinnings for a wireless internet that simultaneously achieves deployability, scalability, high performance and a cost-effective ...
    • Design of Training Data Based Quadratic Detectors with Application to Mechanical Systems 

      Rizzoni, Giorgio; Sayeed, Akbar M.; Jones, Douglas L. (1996-01-20)
      Reliable detection of engine knock is an important issue in the design and maintenance of high performance internal combustion engines. Cost considerations dictate the use of vibration signals, measured at the engine ...
    • Design of WARP: A Wireless Open-Access Research Platform 

      Murphy, Patrick; Sabharwal, Ashutosh; Aazhang, Behnaam (2006-09-01)
      This paper presents the design of WARP, a custom platform for research in advanced wireless algorithms and applications. The platform consists of both custom hardware and FPGA implementations of key communications blocks. ...
    • Design space exploration for real-time embedded stream processors 

      Rajagopal, Sridhar; Cavallaro, Joseph R.; Rixner, Scott (2004-07-01)
      We present a design framework for rapidly exploring the design space for stream processors in real-time embedded systems. Stream processors enable hundreds of arithmetic units in programmable pro-cessors by using clusters ...
    • Design Techniques for Robust Analog Signal Acquisition 

      Singal, Vikas (2012-10-02)
      The random demodulator architecture is a compressive sensing based receiver that allows the reconstruction of frequency-sparse signals from measurements acquired at a rate below the signal’s Nyquist rate. This in turn ...
    • Design, Implementation and Characterization of a Cooperative Communications System 

      Murphy, Patrick O. (2011)
      Cooperative communications is a class of techniques which seek to improve reliability and throughput in wireless systems by pooling the resources of distributed nodes. While cooperation can occur at different network layers ...
    • Designing artificial 2D crystals with site and size controlled quantum dots 

      Xie, Xuejun; Kang, Jiahao; Cao, Wei; Chu, Jae Hwan; Gong, Yongji; Ajayan, Pulickel M.; Banerjee, Kaustav (2017)
      Ordered arrays of quantum dots in two-dimensional (2D) materials would make promising optical materials, but their assembly could prove challenging. Here we demonstrate a scalable, site and size controlled fabrication of ...
    • Designing energy dissipation properties via thermal spray coatings 

      Brake, M.R.W.; Hall, A.C.; Madison, J.D. (2017)
      The coefficient of restitution is a measure of energy dissipation in a system across impact events. Often, the dissipative qualities of a pair of impacting components are neglected during the design phase. This research ...
    • Destabilization of Surfactant-Dispersed Carbon Nanotubes by Anions 

      Hirano, Atsushi; Gao, Weilu; He, Xiaowei; Kono, Junichiro (2017)
      The colloidal stability of surfactant-dispersed single-wall carbon nanotubes (SWCNTs) is determined by microscopic physicochemical processes, such as association, partitioning, and adsorption propensities. These processes ...
    • Detecting Events From Twitter In Real-Time 

      Zhao, Siqi (2013-09-16)
      Twitter is one of the most popular online social networking sites. It provides a unique and novel venue of publishing: it has over 500 million active users around the globe; tweets are brief, limited to 140 characters, an ...
    • Detecting Periodic Behavior in Nonstationary Signals 

      Venkatachalam, Vidya; Aravena, Jorge.L. (1998-10-20)
      This paper presents results on the multiresolution analysis of nonstationary signals with the objective of detecting underlying periodic phenomena. Wavelet packet analysis with coefficient thresholding is the basis for the ...
    • Detecting the Biopolymer Behavior of Graphene Nanoribbons in Aqueous Solution 

      Wijeratne, Sithara S.; Penev, Evgeni S.; Lu, Wei; Li, Jingqiang; Duque, Amanda L.; Yakobson, Boris I.; Tour, James M.; Kiang, Ching-Hwa (2016)
      Graphene nanoribbons (GNR), can be prepared in bulk quantities for large-area applications by reducing the product from the lengthwise oxidative unzipping of multiwalled carbon nanotubes (MWNT). Recently, the biomaterials ...
    • Detection and estimation with compressive measurements 

      Baraniuk, Richard G.; Davenport, Mark A.; Wakin, Michael B. (2006-11-01)
      The recently introduced theory of compressed sensing enables the reconstruction of sparse or compressible signals from a small set of nonadaptive, linear measurements. If properly chosen, the number of measurements can ...
    • Detection of Target Speakers in Audio Databases 

      Magrin-Chagnolleau, Ivan; Rosenberg, Aaron; Parthasarathy, S. (1999-01-15)
      The problem of speaker detection in audio databases is addressed in this paper. Gaussian mixture modeling is used to build target speaker and background models. A detection algorithm based on a likelihood ratio calculation ...