Now showing items 1-20 of 125

    • Accelerating Hardware Simulation on Multi-cores 

      Nanjundappa, Mahesh (Virginia Tech, 2010-05-04)
      Electronic design automation (EDA) tools play a central role in bridging the productivity gap for designing complex hardware systems. However, with an increase in the size and complexity of today's design requirements, ...
    • Advancing Autonomous Structural Health Monitoring 

      Grisso, Benjamin Luke (Virginia Tech, 2007-11-27)
      The focus of this dissertation is aimed at advancing autonomous structural health monitoring. All the research is based on developing the impedance method for monitoring structural health. The impedance technique utilizes ...
    • Area and Power Conscious Rake Receiver Design for Third Generation WCDMA Systems 

      Kim, Jina (Virginia Tech, 2003-01-16)
      A rake receiver, which resolves multipath signals corrupted by a fading channel, is the most complex and power consuming block of a modem chip. Therefore, it is essential to design a rake receiver be efficient in hardware ...
    • ATPG and DFT Algorithms for Delay Fault Testing 

      Liu, Xiao (Virginia Tech, 2004-06-10)
      With ever shrinking geometries, growing metal density and increasing clock rate on chips, delay testing is becoming a necessity in industry to maintain test quality for speed-related failures. The purpose of delay testing ...
    • ATPG based Preimage Computation: Efficient Search Space Pruning using ZBDD 

      Chandrasekar, Kameshwar (Virginia Tech, 2003-07-28)
      Preimage Computation is a fundamental step in Formal Verification of VLSI designs. Conventional OBDD-based methods for Formal Verification suffer from spatial explosion, since large designs can blow up in terms of memory. ...
    • Automotive Lead-Acid Battery State-of-Health Monitoring System 

      Kerley, Ross Andrew (Virginia Tech, 2014-09-05)
      This thesis describes the development of a system to continuously monitor the battery in a car and warn the user of an upcoming battery failure. An automotive battery endures enormous strain when it starts the engine, and ...
    • A Behavioral Test Strategy For Board Level Systems 

      Hameed, Qaisar (Virginia Tech, 1999-03-03)
      A digital board typically contains a heterogeneous mixture of chips: microprocessors, memory, control and I/O logic. Different testing techniques are needed for each of these components. To test the whole board, these ...
    • A built-in self-test PLA generator 

      Dhawan, Sanjay (Virginia Tech, 1991-01-15)
      see document
    • CMOS Receiver Design for Optical Communications over the Data-Rate of 20 Gb/s 

      Chong, Joseph (Virginia Tech, 2018-06-21)
      Circuits to extend operation data-rate of a optical receiver is investigated in the dissertation. A new input-stage topology for a transimpedance amplifier (TIA) is designed to achieve 50% higher data-rate ...
    • A Constant ON-Time 3-Level Buck Converter for Low Power Applications 

      Cassidy, Brian Michael (Virginia Tech, 2015-04-22)
      Smart cameras operate mostly in sleep mode, which is light load for power supplies. Typical buck converter applications have low efficiency under the light load condition, primarily from their power stage and control being ...
    • Denial-of-Service Attacks on Battery-Powered Mobile Computers 

      Krishnaswami, Jayan (Virginia Tech, 2004-01-12)
      A Denial of Service (DoS) attack is an incident in which the user is deprived of the services of a resource he is expected to have. With the increasing reliance on mobile devices like laptops and palmtops, a new type of ...
    • Design and Analysis of a Low-Power Low-Voltage Quadrature LO Generation Circuit for Wireless Applications 

      Wang, Shen (Virginia Tech, 2012-08-31)
      The competitive market of wireless communication devices demands low power and low cost RF solutions. A quadrature local oscillator (LO) is an essential building block for most transceivers. As the CMOS technology scales ...
    • Design and Analysis of Defect- and Fault-tolerant Nano-Computing Systems 

      Bhaduri, Debayan (Virginia Tech, 2007-02-19)
      The steady downscaling of CMOS technology has led to the development of devices with nanometer dimensions. Contemporaneously, maturity in technologies such as chemical self-assembly and DNA scaffolding has influenced the ...
    • Design and fabrication of Emitter Controlled Thyristor 

      Liu, Yin (Virginia Tech, 2001-06-15)
      The Emitter Controlled Thyristor (ECT) is a new MOS-Gated Thyristor (MGT) that combines the ease of a MOS gate control with the superior current carrying capability of a thyristor structure for high-power applications. An ...
    • Design and Fabrication of the Emitter Controlled Thyristor 

      Liu, Yin (Virginia Tech, 2001-06-15)
      The Emitter Controlled Thyristor (ECT) is a new MOS-Gated Thyristor (MGT) that combines the ease of a MOS gate control with the superior current carrying capability of a thyristor structure for high-power applications. An ...
    • Design of a High Temperature GaN-Based Variable Gain Amplifier for Downhole Communications 

      Ehteshamuddin, Mohammed (Virginia Tech, 2017-02-07)
      The decline of easily accessible reserves pushes the oil and gas industry to explore deeper wells, where the ambient temperature often exceeds 210 °C. The need for high temperature operation, combined with the need for ...
    • Design of a High Temperature GaN-Based VCO for Downhole Communications 

      Feng, Tianming (Virginia Tech, 2017-02-20)
      Decreasing reserves of natural resources drives the oil and gas industry to drill deeper and deeper to reach unexploited wells. Coupled with the demand for substantial real-time data transmission, the need for high speed ...
    • Design of a Highly Linear 24-GHz LNA 

      Elyasi, Hedieh (Virginia Tech, 2016-07-05)
      The increasing demand for high data rate devices and many applications in short range high speed communication, attract many RF IC designers to work on 24-GHz transceiver design. The Federal Communication Commission (FCC) ...
    • Design of a Low Power Delta Sigma Modulator for Analog to Digital Conversion 

      Itskovich, Mikhail (Virginia Tech, 2003-09-01)
      The growing demand of “System on a Chip” applications necessitates integration of multiple devices on the same chip. Analog to Digital conversion is essential to interfacing digital systems to external devices such as ...
    • Design of Active Clamp for Fast Transient Voltage Regulator-Down (VRD) Applications 

      Ma, Yan (Virginia Tech, 2004-12-10)
      Since the early 80s, the computer industry has undergone great expansion. Processors are becoming faster and more powerful. Power management issues in computing systems are becoming more and more complex and challenging. ...