Now showing items 314-333 of 1107

    • Failure Mode Analysis for a Hazardous Waste Clean-up Manipulator 

      Walker, Ian D.; Cavallaro, Joseph R. (1996-05-01)
      This paper describes the application of Fault Tree Analysis to the design phase of a robot manipulator for hazardous waste retrieval. The robot is to be deployed in single-shell under-ground storage tanks at the US Department ...
    • Failure Mode Analysis of a Proposed Manipulator-based Hazardous Material Retrieval System 

      Cavallaro, Joseph R.; Walker, Ian D. (1997-04-01)
      Failure mode and reliability analysis is particularly important for robot manipulators to be deployed in remote environments, where inspection and repair are diffcult, and reliability is of prime importance. This is ...
    • A Fast Algorithm and Testbed Evaluation for Sound Source Localization Using Sensor Networks 

      Johnston, Brian; Yin, Xiaoming; Valenzuela, Adrian; Frantz, Patrick (2005-09-01)
      The theoretical idea of a network composed of small, low-cost sensor nodes able to localize the source of acoustic events has the potential to make a multitude of exciting applications possible. However, this potential can ...
    • A Fast and Efficient Sift Detector Using The Mobile GPU 

      Rister, Blaine; Wang, Guohui; Wu, Michael; Cavallaro, Joseph R. (2013-06)
      Emerging mobile applications, such as augmented reality, demand robust feature detection at high frame rates. We present an implementation of the popular Scale-Invariant Feature Transform (SIFT) feature detection algorithm ...
    • Fast computation of the sliding-window Radon transform with application to attribute extraction 

      Steeghs, Philippe (1999-01-15)
      We have developed a fast and robust algorithm for the extraction of 3-D seismic attributes. The algorithm is based on the recursive computation of the 3-D sliding-window Radon transform. Considerable gain in computational ...
    • Fast Multi-user Detector for a Time-varying CDMA System 

      Das, Suman; Cavallaro, Joseph R.; Aazhang, Behnaam (1997-07-01)
      This paper investigates methods to reduce the amount of computation needed to detect information bits using a linear detector for a CDMA system. We show windowing technique coupled with pipelining can reduce the amount of ...
    • Fast Step Transition and State Identification (STaSI) for Discrete Single-Molecule Data Analysis 

      Shuang, Bo; Cooper, David; Taylor, J. Nick; Kisley, Lydia; Chen, Jixin; Wang, Wenxiao; Li, Chun Biu; Komatsuzaki, Tamiki; Landes, Christy F. (2014)
      We introduce a step transition and state identification (STaSI) method for piecewise constant single-molecule data with a newly derived minimum description length equation as the objective function. We detect the step ...
    • Fast, Exact Synthesis of Gaussian and nonGaussian Long-Range-Dependent Processes 

      Baraniuk, Richard; Crouse, Matthew (2009-04-15)
      1/f noise and statistically self-similar random processes such as fractional Brownian motion (fBm) and fractional Gaussian noise (fGn) are fundamental models for a host of real-world phenomena, from network traffic to ...
    • Fast, Exact Synthesis of Gaussian and nonGaussian Long-Range-Dependent Processes 

      Crouse, Matthew; Baraniuk, Richard G. (1999-01-15)
      1/<i>f</i> noise and statistically self-similar processes such as fractional Brownian motion (fBm) are vital for modeling numerous real-world phenomena, from network traffic to DNA to the stock market. Although several ...
    • Faster Sequential Universal Coding via Block Partitioning 

      Baron, Dror; Baraniuk, Richard G. (2006-04-01)
      Rissanen provided a sequential universal coding algorithm based on a block partitioning scheme, where the source model is estimated at the beginning of each block. This approach asymptotically approaches the entropy at the ...
    • Fault Detection and Fault Tolerance in Robotics 

      Visinsky, Monica L.; Walker, Ian D.; Cavallaro, Joseph R. (1991-07-01)
      Robots are used in inaccessible or hazardous environments in order to alleviate some of the time, cost and risk involved in preparing men to endure these conditions. In order to perform their expected tasks, the robots ...
    • Fault Detection and Fault Tolerance Methods for Robotics 

      Visinsky, Monica L. (1991-12-20)
      Fault tolerance is increasingly important in modern autonomous or industrial robots. The ability to detect and tolerate failures allows robots to effectively cope with internal failures and continue performing designated ...
    • Fault Residual Generation via Nonlinear Analytical Redundancy 

      Leuschen, Martin L.; Walker, Ian D.; Cavallaro, Joseph R. (2005-05-01)
      Fault detection is critical in many applications, and analytical redundancy (AR) has been the key underlying tool for many approaches to fault detection. However, the conventional AR approach is formally limited to linear ...
    • Fault Tolerant Algorithms and Architectures for Robotics 

      Hamilton, D. L.; Visinsky, Monica L.; Bennett, J. K.; Cavallaro, Joseph R.; Walker, Ian D. (1994-04-01)
      As robot tasks in space, nuclear, and medical environments become more widespread, the issues of reliability and safety for robots are becoming more critical. Attempts to address these issues have resulted in a a recent ...
    • Fault-Tolerant VLSI Processor Array for the SVD 

      Cavallaro, Joseph R.; Near, Christopher D.; Uyar, M. Umit (1989-10-01)
      Dynamic reconfiguration techniques are presented for a two-dimensional systolic array for the SVD of a matrix. Extra computation time is not required, since idle time inherent in the array is exploited. The scheme does not ...
    • Feature Extraction Techniques for Classification and Identification of Spectral Signatures 

      de Figueiredo, Rui J.P. (1976-04-20)
      Some of the results obtained at Rice University on the extraction of features from spectral signatures for the purpose of classifying and identifying these signatures are described.
    • Feedback gain in Multiple Antenna Systems 

      Bhashyam, Srikrishna; Sabharwal, Ashutosh; Aazhang, Behnaam (2002-05-20)
      Multiple antenna transmission and reception have been shown to significantly increase the achievable data rates of wireless systems. However, most of the existing analysis assumes perfect or no channel information at the ...
    • Fermi-edge superfluorescence from a quantum-degenerate electron-hole gas 

      Kim, Ji-Hee; Noe, G. Timothy II; McGill, Stephen A.; Wang, Yongrui; Wojcik, Aleksander K.; Belyanin, Alexey A.; Kono, Junichiro (2013)
      Nonequilibrium can be a source of order. This rather counterintuitive statement has been proven to be true through a variety of fluctuation-driven, self-organization behaviors exhibited by out-of-equilibrium, many-body ...
    • FFT-Accelerated Iterative MIMO Chip Equalizer Architecture For CDMA Downlink 

      Guo, Yuanbin; McCain, Dennis; Cavallaro, Joseph R. (2005-03-01)
      In this paper, we present a novel FFT-accelerated iterative Linear MMSE chip equalizer in the MIMO CDMA downlink receiver. The reversed form time-domain matrix multiplication in the Conjugate Gradient iteration is accelerated ...
    • Finite Backlog Effects on Downlink Scheduling 

      Ahmed, Nasir; Khojastepour, Mohammad; Sabharwal, Ashutosh; Aazhang, Behnaam (2003-11-20)
      In a multi-user downlink system, the use of channel estimates in the scheduling process can significantly improve the spectral efficiency. Recent work has shown that from a sum rate capacity standpoint, and assuming infinite ...