Now showing items 923-942 of 1140

    • Robust Slope Region for Wideband CDMA With Multiple Antennas 

      Muharemovic, Tarik; Aazhang, Behnaam (2003-04-01)
      We analyze a low power, wideband CDMA system with multiple antennas. The joint "slope region" - of transmission rates at minimum energy per bit - is derived as a function of proportion between vanishing rates for multiple ...
    • Robust Solution of the Linear Servomechanism Problem 

      Staats, P.W.; Pearson, J.B. (1974-09-01)
      This paper furnishes a complete solution to the problem of designing robust controllers for linear servomechanisms. The results complete the work begun in [1] in that arbirary exogenous signals are included in the problem ...
    • Robustness in Parameter Estimation 

      Papantoni-Kazakos, P. (1975-10-20)
      Due to vagueness in the definition of robustness, there has been no natural transition between robust and nonparametric parameter estimators. In this work, qualitative ideas first expressed by Hampel [1] are extended in ...
    • RSIM Reference Manual: Version 1.0 

      Pai, Vijay S.; Ranganathan, Parthasarathy; Adve, Sarita V. (1997-08-20)
      Simulation has emerged as an important method for evaluating new ideas in both uniprocessor and multiprocessor architecture. Compared to building real hardware, simulation provides at least two advantages. First it ...
    • RSIM: An Execution-Driven Simulator for ILP-Based Shared-Memory Multiprocessors and Uniprocessors 

      Pai, Vijay S.; Ranganathan, Parthasarathy; Adve, Sarita V. (1997-10-20)
      None
    • Rsim: Simulating Shared-Memory Multiprocessors with ILP Processors 

      Hughes, Christopher J.; Pai, Vijay S.; Ranganathan, Parthasarathy; Adve, Sarita V. (2002-02-20)
      Rsim is a publicly available architecture simulator for shared-memory systems built from processors that aggressively exploit instruction-level parallelism. Modeling ILP features in a multiprocessor is particularly important ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 ...
    • 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 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 ...
    • Sharing Knowledge and Building Communities in Signal Processing 

      Baraniuk, Richard G.; Burrus, C. Sidney; Johnson, Don; Jones, Douglas L. (2004-09-01)
      The textbook has traditionally been the fundamental tool of university teaching. The text both serves as the repository of facts and information and provides the recommended structure and sequence for teaching and learning ...
    • Shear Madness: New Orthonormal Bases and Frames Using Chirp Functions 

      Baraniuk, Richard G.; Jones, Douglas L. (1993-12-01)
      The proportional-bandwidth and constant-bandwidth time-frequency signal decompositions of the wavelet, Gabor, and Wilson orthonormal bases have attracted substantial interest for representing nonstationary signals. However, ...
    • Shift-Invariant Denoising using Wavelet-Domain Hidden Markov Trees 

      Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (1999-10-20)
      Wavelet-domain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint statistics of the wavelet coefficients ...
    • Shift-Invariant Denoising using Wavelet-Domain Hidden Markov Trees 

      Romberg, Justin; Choi, Hyeokho; Baraniuk, Richard G. (1999-10-01)
      Wavelet-domain hidden Markov models have proven to be useful tools for statistical signal and image processing. The hidden Markov tree (HMT) model captures the key features of the joint statistics of the wavelet coefficients ...
    • Signal and Information Processing for Wireless Communication Systems 

      Bhashyam, Srikrishna (2001-04-20)
      Next generation wireless communication systems need to support access to multimedia data available on the internet. This universal wireless access to multimedia data requires data rates and quality of service that are ...