Now showing items 1542-1561 of 1905

    • Safety of Robotic Systems - Guest Editorial 

      Petersen, Kurt E.; Walker, Ian D.; Cavallaro, Joseph R. (1996-09-01)
      We were delighted to be invited by the editors of Reliability Engineering and System Safety to organise a special issue on the Safety of Robotic Systems. Robotic systems have now reached a level of sophistication far ...
    • Sampling and recovery of pulse streams 

      Hegde, Chinmay (2010)
      Compressive Sensing (CS) is a new technique for the efficient acquisition of signals, images, and other data that have a sparse representation in some basis, frame, or dictionary. By sparse we mean that the N -dimensional ...
    • SAVI: Synthetic apertures for long-range, subdiffraction-limited visible imaging using Fourier ptychography 

      Holloway, Jason; Wu, Yicheng; Sharma, Manoj K.; Cossairt, Oliver; Veeraraghavan, Ashok (2017)
      Synthetic aperture radar is a well-known technique for improving resolution in radio imaging. Extending these synthetic aperture techniques to the visible light domain is not straightforward because optical receivers cannot ...
    • Scalable and Low Power LDPC Decoder Design Using High Level Algorithmic Synthesis 

      Sun, Yang; Cavallaro, Joseph R.; Ly, Tai (2009-09-01)
      This paper presents a scalable and low power low-density parity-check (LDPC) decoder design for the next generation wireless handset SoC. The methodology is based on high level synthesis: PICO (program-in chip-out) tool ...
    • Scalable Architecture of MIMO Multi-carrier CDMA System on Programmable Logic 

      Guo, Yuanbin; Cavallaro, Joseph R. (2007-11-01)
      In this paper, a scalable architecture of the multicarrier CDMA system using Multiple-Input-Multiple-Output (MIMO) technology is designed in the programmable logic array. The system-level partitioning with different ...
    • Scalable FPGA Architectures for LMMSE-based SIMO Chip Equalizer in HSDPA Downlink 

      Guo, Yuanbin; McCain, Dennis; Zhang, Jianzhong (Charlie); Cavallaro, Joseph R. (2003-11-01)
      In this paper, scalable FPGA architectures for the LMMSE-based chip-level equalizer in HSDPA downlink re-ceivers are studied. An FFT-based algorithm is applied to avoid the direct matrix inverse by utilizing the block-Toeplitz ...
    • Scalable quality of service provisioning 

      Cetinkaya, Coskun (2003)
      Quality of Service (QoS) provisioning is an important challenge for future packet networks. There are many different aspects of Network QoS requirements such as performance, availability, reliability, security, etc. This ...
    • Scaling law for excitons in 2D perovskite quantum wells 

      Blancon, J.-C.; Stier, A.V.; Tsai, H.; Nie, W.; Stoumpos, C.C.; Traoré, B.; Pedesseau, L.; Kepenekian, M.; Katsutani, F.; Noe, G.T.; Kono, J.; Tretiak, S.; Crooker, S.A.; Katan, C.; Kanatzidis, M.G.; Crochet, J.J.; Even, J.; Mohite, A.D. (2018)
      Ruddlesden-Popper halide perovskites are 2D solution-processed quantum wells with a general formula A2A'n-1M n X3n+1, where optoelectronic properties can be tuned by varying the perovskite layer thickness (n-value), and ...
    • SCAN - Speech Content Based Audio Navigator: A Systems Overview 

      Choi, John; Hindle, Don; Hirschberg, Julia; Magrin-Chagnolleau, Ivan; Nakatani, Christine; Pereira, Fernando; Singhal, Amit; Whittaker, Steve (1998-01-15)
      SCAN (Speech Content based Audio Navigator) is a spoken document retrieval system integrating speaker-independent, large-vocabulary speech recognition with information-retrieval to support query-based retrieval of information ...
    • Scanning probe analysis of polydiacetylene nanowires and poly(3-hexylthiophene) thin films 

      Giridharagopal, Rajiv (2010)
      In molecular and organic electronic systems, the electrode material has considerable influence on the performance of the resulting device. The advent of scanning tunneling microscopy (STM) and its various spectroscopic ...
    • Second-Order Statistical Measures for Text-Independent Speaker Identification 

      Bimbot, Frederic; Magrin-Chagnolleau, Ivan (1995-08-20)
      This article presents an overview of several measures for speaker recognition. These measures relate to second-order statistical tests, and can be expressed under a common formalism. Alternate formulations of these measures ...
    • Segmenting contrast-enhanced CT images for attenuation correction of PET/CT data 

      Qiao, Feng (2005)
      The use of contrast media in positron emission tomography (PET)/computed tomography (CT) dual modality imaging has been shown to cause artifacts in the PET image. These artifacts are attributed to an overestimation of the ...
    • Selecting models that describe neural population responses 

      Uppuluri, Jyotirmai (2007)
      This research provides a new approach to analyzing the statistical properties of limited data sets. A lack of sufficient data is a pressing issue in the neuroscience community, where researchers want to understand the ...
    • Semi-analytical model for carbon nanotube and graphene nanoribbon transistors 

      Yang, Xuebei (2010)
      Carbon nanotubes and graphene provide high carrier mobility for ballistic transport, high carrier velocity for fast switching, and excellent mechanical and thermal conductivity. As a result, they are widely considered as ...
    • Semi-Parallel Architectures For Real-time LDPC Coding 

      Karkooti, Marjan (2004-05-01)
      Error correcting codes (ECC) enable the communication systems to have a low-power, reliable transmission over noisy channels. ow Density Parity Check codes are the best known ECC code that can achieve data rates very close ...
    • Semi-parallel architectures for real-time LDPC coding 

      Karkooti, Marjan (2004)
      Error correcting codes (ECC) enable the communication systems to have a low-power, reliable transmission over noisy channels. Low Density Parity Check codes are the best known ECC code that can achieve data rates very close ...
    • Semi-parallel Reconfigurable Architectures for Real-time LDPC Decoding 

      Karkooti, Marjan; Cavallaro, Joseph R. (2004-04-01)
      This paper presents a semi-parallel architecture for decoding Low Density Parity Check (LDPC) codes. A modified version of Min-Sum algorithm has been used which has the advantage of simpler computations compared to Sum-Product ...
    • Sensitivity of Achievable Rates for Half-Duplex Relay Channel 

      Chakrabarti, Arnab; Sabharwal, Ashutosh; Aazhang, Behnaam (2005-06-01)
      This paper investigates the sensitivity of achievable rates for the half-duplex AWGN relay channel to the choice of modulation, receiving time fraction, and source-relay correlation. Our study is motivated by practical ...
    • Sequential gradient-restoration algorithm for optimal control problems with general boundary conditions 

      Gonzalez, Salvador (1978)
      This thesis considers the numerical solution of two classes of optimal control problems, called Problem P1 and Problem P2 for easy identification. Problem P1 involves a functional I subject to differential constraints and ...