Дисертації: "VERILOG IMPLEMENTATION"

1

Skärpe, Anders. "Implementation of an SDR in Verilog." Thesis, Linköpings universitet, Kommunikationssystem, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-132325.

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This report presents an implementation of the software part in a software definedradio. The radio is not entirely implemented in software and therefore there arecertain limitations on the received signal. The parts implemented are oscillator,decimation filter, carrier synchronization, time synchronization, package detection,and demodulation. Different algorithms were tested for the different partsto measure the power consumption. To understand how the number of bits usedto represent the signal affects the power consumption, the number of bits wasreduced from 20 bits to 10 bits. This reduction reduced the power consumptionfrom 2.57mW to 1.89mW. A small change in the choice of algorithms was thenmade which reduced the power consumption to 1.86mW. Then the clock rate wasreduced for some parts of the system which reduced the power consumption to1.05mW.

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2

Chen, Adam Y. (Adam Yu-Chih). "Implementation of the Intel 486 SX microprocessor in Verilog hardware description language." Thesis, Massachusetts Institute of Technology, 1993. http://hdl.handle.net/1721.1/79470.

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3

RAGHURAMAN, SRINIVASAN. "IMPLEMENTATION AND PERFORMANCE MEASUREMENTS OF A VERILOG-AMS MODEL OF BSIM3v3.3 TRANSISTOR." University of Cincinnati / OhioLINK, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1163711277.

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4

NARAYANAN, SHRUTHI. "HARDWARE IMPLEMENTATION OF GENETIC ALGORITHM MODULES FOR INTELLIGENT SYSTEMS." University of Cincinnati / OhioLINK, 2005. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1122909070.

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5

Kasarabada, Yasaswy. "A Verilog Description and Efficient Hardware Implementation of the Baillie-PSW Primality Test." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1471347471.

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6

Park, Sungho. "A verilog-hdl implementation of virtual channels in a network-on-chip router." [College Station, Tex. : Texas A&M University, 2008. http://hdl.handle.net/1969.1/ETD-TAMU-2890.

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7

Sampath, Kumar Santhiya. "Implementation of Low-Bit Rate Audio Codec, Codec2, in Verilog on Modern FPGAS." Miami University / OhioLINK, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=miami158819886466373.

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8

Pampana, Srilaxmi. "FPGA BASED IMPLEMENTATION OF A POSITION ESTIMATOR FOR CONTROLLING A SWITCHED RELUCTANCE MOTOR." UKnowledge, 2004. http://uknowledge.uky.edu/gradschool_theses/254.

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Rotor Position information is essential in the operation of the Switched Reluctance Motor (SRM) for properly controlling its phase currents. This thesis uses Field Programmable Gate Array (FPGA) technology to implement a method to estimate the SRMs rotor position using the inverse inductance value of the SRMs phases. The estimated rotor position is given as input to the Commutator circuit, also implemented in the FPGA, to determine when torque-producing currents should be input in the SRM phase windings. The Estimator and Commutator design is coded using Verilog HDL and is simulated using Xilinx tools. This circuit is implemented on a Xilinx Virtex XCV800 FPGA system. The experimentally generated output is validated by comparing it with simulation results from a Simulink model of the Estimator. The performance of the FPGA based SRM rotor position estimator in terms of calculation time is compared to a digital signal processor (DSP) implementation of the same position estimator algorithm. It is found that the FPGA rotor position Estimator with a 5MHz clock can update its rotor position estimate every 7s compared to an update time of 50s for a TMS320C6701-150 DSP implementation using a commercial DSP board. This is a greater than 7 to one reduction in the update time.

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9

Thakur, Ravi Bhushan. "Low power design implementation of a signal acquisition module." Thesis, Kansas State University, 2010. http://hdl.handle.net/2097/4617.

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Master of Science
Department of Electrical and Computer Engineering
Don M. Gruenbacher
As semiconductor technologies advance, the smallest feature sizes that can be fabricated get smaller. This has led to the development of high density FPGAs capable of supporting high clock speeds, which allows for the implementation of larger more complex designs on a single chip. Over the past decade the technology market has shifted toward mobile devices with low power consumption at or near the top of design considerations. By reducing power consumption in FPGAs we can achieve greater reliability, lower cooling cost, simpler power supply and delivery, and longer battery life. In this thesis, FPGA technology is discussed for the design and commercial implementation of low power systems as compared to ASICs or microprocessors, and a few techniques are suggested for lowering power consumption in FPGA designs. The objective of this research is to implement some of these approaches and attempt to design a low power signal acquisition module. Designing for low power consumption without compromising performance requires a power-efficient FPGA architecture and good design practices to leverage the architectural features. With various power conservation techniques suggested for every stage of the FPGA design flow, the following approach was used in the design process implementation: the switching activity is addressed in the design entry, and synthesis level and software tools are utilized to get an initial estimate of and optimize the design’s power consumption. Finally, the device choice is made based on its features that will enhance the optimization achieved in the previous stages; it is configured and real time board level power measurements are made to verify the implementation’s efficacy

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10

Gumus, Rasit. "Implementation Of A Risc Microcontroller Using Fpga." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/2/12606694/index.pdf.

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In this thesis a microcontroller core is developed in an FPGA. Its instruction set is compatible with the microcontroller PIC16XX series by Microchip Technology. The microcontroller employs a RISC architecture with separate busses for instructions and data. Our goal in this research is to implement and evaluate the design in the FPGA. Increasing performance and gate capacity of recent FPGA devices permits complex logic systems to be implemented on a single programmable device. Such a growing complexity demands design approaches, which can lead to designs containing millions of logic gates, memories, high-speed interfaces, and other high-performance components. In recent years, the continuous development in the area of highly integrated circuits has lead to a change in the design methods used, making it possible to economically utilize FPGAs in many designs. A test demo board from the Digilent Inc is used to fit our testing requirements of the RISC microcontroller. The test demo board also had the capability of communicating with a personal computer (PC) so that we can load the program from PC. Based on the modern design methods the microcontroller core is developed using the Verilog hardware description language. Xilinx ISE Foundation 6.3i software is used for its synthesis and implementation. An embedded test program code using MPLAB is also developed, and then loaded into the designed microcontroller residing in the FPGA. In order to perform a functional test of the microcontroller core a special test program downloader application is designed by using Borland C++ Builder. First, the specification from the PIC16XX datasheet is transferred into an abstract behavioral description. Based on that, the next step is to develop a description of the microcontroller core with some minor modifications which can be synthesizable into a FPGA. Finally, the resulting gate level netlist is evaluated and tested using a demo board.

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11

Nicodemus, Joshua. "An implementation of the usf/ calvo model in verilog-a to enforce charge conservation in applicable fet models." [Tampa, Fla.] : University of South Florida, 2005. http://purl.fcla.edu/fcla/etd/SFE0001107.

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12

Jin, Chuan. "Test implementation of embedded cores-based sequential circuits using Verilog HDL under Altera MAX Plus II development environment." Thesis, University of Ottawa (Canada), 2004. http://hdl.handle.net/10393/26669.

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A Verilog HDL digital circuit fault simulator to detect permanent stuck-at logic faults for embedded cores-based synchronous sequential circuits is proposed in this thesis. The fault simulator can emulate a typical built-in self-testing (BIST) environment that utilizes a test pattern generator that sends its outputs to a module under test (MUT), with the resulting output from the MUT being fed into a test data analyzer. A fault is detected if the module response is different from that of the fault-free MUT. The fault simulator is suitable for testing synchronous sequential circuits described at the gate and flip-flop level in Verilog HDL. The subject thesis describes the detailed architecture and implementation of the fault simulator. Some simulation experiments on ISCAS 89 sequential benchmark circuits are also provided and discussed. The thesis also explores possible application of the ideas proposed to current embedded cores-based systems-on-chip (SOC) technologies, specifically in the context of testing memory-based synchronous digital systems.

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13

Kora, Venugopal Rishvanth. "FPGA BASED PARALLEL IMPLEMENTATION OF STACKED ERROR DIFFUSION ALGORITHM." UKnowledge, 2010. http://uknowledge.uky.edu/gradschool_theses/40.

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Digital halftoning is a crucial technique used in digital printers to convert a continuoustone image into a pattern of black and white dots. Halftoning is used since printers have a limited availability of inks and cannot reproduce all the color intensities in a continuous image. Error Diffusion is an algorithm in halftoning that iteratively quantizes pixels in a neighborhood dependent fashion. This thesis focuses on the development and design of a parallel scalable hardware architecture for high performance implementation of a high quality Stacked Error Diffusion algorithm. The algorithm is described in ‘C’ and requires a significant processing time when implemented on a conventional CPU. Thus, a new hardware processor architecture is developed to implement the algorithm and is implemented to and tested on a Xilinx Virtex 5 FPGA chip. There is an extraordinary decrease in the run time of the algorithm when run on the newly proposed parallel architecture implemented to FPGA technology compared to execution on a single CPU. The new parallel architecture is described using the Verilog Hardware Description Language. Post-synthesis and post-implementation, performance based Hardware Description Language (HDL), simulation validation of the new parallel architecture is achieved via use of the ModelSim CAD simulation tool.

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14

Ström, Marcus. "System Design of RF Receiver and Digital Implementation of Control Logic." Thesis, Linköping University, Department of Science and Technology, 2003. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-1848.

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This report is the outcome of a thesis work done at Linköpings University, campus Norrköping. The thesis work was part of the development of a RF transceiver chip for implantable medical applications. The development was done in cooperation with Zarlink Semiconductor AB, located in Järfälla, Stockholm.

The transceiver is divided into three main blocks, which are the wakeup block, the MAC block and the RF block. The wakeup block is always operating and is awaiting a wakeup request in the 2,45GHz ISM-band. The RF-block is operating in the 400MHz ISM-band and is powered up after wakeup The MAC is the controller of the whole chip. All three blocks in the transceiver structure should be integrated on the same chip, using TSMC 0,18µm process design kit for CMOS (Mixed Signal /RF).

The purpose of the thesis work was to develop the wakeup circuit for the transceiver. The main purpose was to develop the digital control logic in the circuitry, using RTL-coding (mainly VHDL) but the thesis work also included a system analysis of the whole wakeup block, including the front-end, for getting a better overview and understanding of the project.

A complete data packet or protocol for the wakeup message on 2,45GHz, is defined in the report and is one of the results of the project. The packet was developed continuously during progress in the project. Once the data packet was defined the incoming RF stage could be investigated. The final proposal to a complete system design for the wakeup block in the RF transceiver is also one of the outcomes of the project. The front-end consists mainly of a LNA, a simple detector and a special decoder. Since the total power consumption on the wakeup block was set to 200nA, this had to be taken under consideration continuously. There was an intention not to have an internal clock signal or oscillator available in the digital part (for keeping the power consumption down). The solution to this was a self-clocking method used on the incoming RF signal. A special decoder distinguishes the incoming RF signal concerning the burst lengths in time. The decoder consists of a RC net that is uploaded and then has an output of 1, if the burst length is long enough and vice versa.

When it was decided to use a LNA in the front-end, it was found that it could not be active continuously, because of the requirements on low power consumption. The solution to this was to use a strobe signal for the complete front-end, which activates it. This strobe signal was extracted in the digital logic. The strobe signal has a specific duty cycle, depending on the time factors in the detector and in the decoder in the front-end. The total strobing time is in the implemented solution 250µs every 0,5s.

The digital implementation of the control logic in the wakeupblock was made in VHDL (source code) and Verilog (testbenches). The source code was synthesized against the component library for the process 0,18µm from TSMC, which is a mixed/signal and RF process. The netlist from the synthesizing was stored as a Verilog file and simulated together with the testbenches using the simulator Verilog-XL. The results from the simulations were examined and reviewed in the program Simvison from Cadence. The result was then verified during a pre-layout review together with colleagues at Zarlink Semiconductor AB. During the implementation phase a Design report was written continuously and then used for the pre-layout review. Extracts (source code and testbench) from this document can be found as appendixes to the report.

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15

Shen, Jue. "Quantization Effects Analysis on Phase Noise and Implementation of ALL Digital Phase Locked-Loop." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-37212.

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With the advancement of CMOS process and fabrication, it has been a trend to maximize digital design while minimize analog correspondents in mixed-signal system designs. So is the case for PLL. PLL has always been a traditional mixed-signal system limited by analog part performance. Around 2000, there emerged ADPLL of which all the blocks besides oscillator are implemented in digital circuits. There have been successful examples in application of Bluetooth, and it is moving to improve results for application of WiMax and ad-hoc frequency hopping communication link. Based on the theoretic and measurement results of existing materials, ADPLL has shown advantages such as fast time-to-market, low area, low cost and better system integration; but it also showed disadvantages in frequency resolution and phase noise, etc. Also this new topic still opens questions in many researching points important to PLL such as tracking behavior and quantization effect. In this thesis, a non-linear phase domain model for all digital phase-locked loop (ADPLL) was established and validated. Based on that, we analyzed that ADPLL phase noise prediction derived from traditional linear quantization model became inaccurate in non-linear cases because its probability density of quantization error did not meet the premise assumption of linear model. The phenomena of bandwidth expansion and in-band phase noise decreasing peculiar to integer-N ADPLL were demonstrated and explained by matlab and verilog behavior level simulation test bench. The expression of threshold quantization step was defined and derived as the method to distinguish whether an integer-N ADPLL was in non-linear cases or not, and the results conformed to those of matlab simulation. A simplified approximation model for non-linear integer-N ADPLL with noise sources was established to predict in-band phase noise, and the trends of the results conformed to those of matlab simulation. Other basic analysis serving for the conclusions above covered: ADPLL loop dynamics, traditional linear theory and its quantitative limitations and numerical analysis of random number. Finally, a present measurement setup was demonstrated and the results were analyzed for future work.

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16

Kay, James T. "Development of future course content requirements supporting the Department of Defense's Internet Protocol verison 6 transition and implementation." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2006. http://library.nps.navy.mil/uhtbin/hyperion/06Jun%5FKay.pdf.

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Thesis (M.S. in Information Technology Management)--Naval Postgraduate School, June 2006.
Thesis Advisor(s): Geoffrey Xie, John Gibson. "June 2006." Includes bibliographical references (p. 47-48). Also available in print.

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17

Bayer, Tomáš. "Návrh hardwarového šifrovacího modulu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218076.

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This diploma’s thesis discourses the cryptographic systems and ciphers, whose function, usage and practical implementation are analysed. In the first chapter basic cryptographic terms, symmetric and asymetric cryptographic algorithms and are mentioned. Also usage and reliability are analysed. Following chapters mention substitution, transposition, block and stream ciphers, which are elementary for most cryptographic algorithms. There are also mentioned the modes, which the ciphers work in. In the fourth chapter are described the principles of some chosen cryptographic algorithms. The objective is to make clear the essence of the algorithms’ behavior. When describing some more difficult algorithms the block scheme is added. At the end of each algorithm’s description the example of practical usage is written. The chapter no. five discusses the hardware implementation. Hardware and software implementation is compared from the practical point of view. Several design instruments are described and different hardware design programming languages with their progress, advantages and disadvantages are mentioned. Chapter six discourses the hardware implementation design of chosen ciphers. Concretely the design of stream cipher with pseudo-random sequence generator is designed in VHDL and also in Matlab. As the second design was chosen the block cipher GOST, which was designed in VHDL too. Both designs were tested and verified and then the results were summarized.

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18

SATYAN. "VERILOG IMPLEMENTATION OF DIGITAL IMAGE WATERMARKING." Thesis, 2017. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16024.

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The development of computer technology has brought about growth in the use of digital multimedia contents related to electronic commerce and services provided through internet. As digital media is easily regenerated and manipulated, so everyone is potentially at risk or incurring considerable financial loss. Also people are motivated to embed data or information such as owner information, company logo, date, time, brand name and even hide a secret message in the digital images to communicate secretly. Digital watermarking can prevent such a loss by providing authentication and copyright protection and plays an important role in security of important data or the content of digital media. The digital images are easily exchanged through internet and threaten to various malicious attacks so they must be protected based on copyright. Here the project represent an efficient hardware implementation of digital Watermarking which features low power consumption, simple implementation, increased processing speed, reliability and invisible image watermarking. Proposed concept would be implemented using Verilog and synthesize Into FPGA.

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19

Ferreira, Carlos Alberto Pereira. "Verilog implementation of the VESA DSC compression algorithm." Master's thesis, 2016. https://hdl.handle.net/10216/89000.

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O trabalho consiste em implementar em verilog o Standard de compressão VESA DSC v1.1. O projecto está na fase de teste e optimização para cumprir restrições de timming. É esperado estar concluido nos inicios de Junho. Feito isto será feita uma comparação entre uma abordagem usando ferramentes de síntese de alto nível e a abordagem "manual" (RTL)

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20

Ferreira, Carlos Alberto Pereira. "Verilog implementation of the VESA DSC compression algorithm." Dissertação, 2016. https://hdl.handle.net/10216/89000.

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O trabalho consiste em implementar em verilog o Standard de compressão VESA DSC v1.1. O projecto está na fase de teste e optimização para cumprir restrições de timming. É esperado estar concluido nos inicios de Junho. Feito isto será feita uma comparação entre uma abordagem usando ferramentes de síntese de alto nível e a abordagem "manual" (RTL)

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21

WU, TAI-YU, and 吳岱祐. "Implementation of SDRAM controller By Verilog Hardware Description Language." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/crfhnk.

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碩士
國立臺北科技大學
電機工程研究所
103
This thesis focuses on the extension of SRAM(Static Random Access Memory). Firstly, We propose a SDRAM controller to instead of SRAM extension on the ARM system. This is the SRAM extension in replaced with the SDRAM controller which is implemented with SDRAM. Secondly, the Modelsim software is selected to complete the simulation of SDRAM controller. The operating frequence of 166MHz and the operating voltage of 3.3 voltage are considered for SDRAM input/output interface. Notify that the SDRAM can not work in precharge time. This thesis provides a Bank method to resolve this problem by accessing a temporary memory in the precharge time. After the precharge ,the missed data will be recover in SDRAM. The Verilog HDL is used not only to complete the simution but also to verify the function of SDRAM. Finally, the DDR SDRAM specification will be confirmed that the proposed SDRAM controller works correctly.

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22

Shiao, Yat-Tai, and 蕭義泰. "An Implementation of Space Time Block Codes by Verilog HDL." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/39828380361265411230.

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碩士
中原大學
電機工程研究所
93
Foschini,Gans and Telatar proved that multiple input multiple output can introduce spatial diversity and increased information capacity. These results have motivated a new area in error correcting codes . The Space Time Block Codes (STBC) proposed by Tarkoh .Space-Time Coding (STC) schemes can combine the channel code design and the use of multiple transmit antennas . The Verilog language be Gateway Design Automation company build up since 1994 , Verilog language already become a standard hardware description language, Popularly use in VLSI and Digital System Design . Otherwise, Verilog language was first language can support any mix design level , At the same time provide Switch level、Logic level、Register Transfer Level and more than High-level describe. The Verilog simulation environment to provide a powerful combine environment to improve Digital Design step and test process. In our thesis, We will simply introduce Space Time Block Codes and Verilog HDL, we firstly use Matlab program to verify the correctness of our design ,After write Verilog HDL code to describe its function, Let the function can implement on chip.

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23

Tsuei, Jrchiuan, and 崔致銓. "Implementation of FH 16FSK Communication Systems Based on FPGA Verilog." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/77946157374867767230.

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碩士
中華科技大學
電子工程研究所碩士班
100
This paper simulates and implements the Frequency-Hopping (FH) 16 Frequency Shift Keying (16FSK) communication system by Xilinx Integrated Synthesis Environment (ISE) platform. At the transmitter, the FH signal is generated pseudo-randomly, and then modulated by the same Quadrature Frequency Shift Keying (QFSK) four times. Finally, the simulated FH signal is transmitted by frequency mixing for computing. The signal going to the receiver goes into the narrow-band pass filter, in order to retain the low frequency signal and to filter out the high-frequency signal. After that, the filtered signal is then converted back to binary signal using a non-coherent FSK demodulator. During the simulation and implementation process, the system is designed using a Verilog hardware description language, and then processed by a simulation software- Xilinx ISim. Finally, the system is written into the Xilinx Spartan-6 FPGA SP605 simulation board for implementation.

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24

Liao, Yi-Bo, and 廖翊博. "Implementation of Temperature-Based Phase Change Memory Model Using Verilog-A." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/06799417656002571077.

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碩士
國立宜蘭大學
電子工程學系碩士班
96
Non-volatile memory (NVM) has been very popular for data storage. The continuous scaling of MOSFET is a challenging task due to physical limitations, so developing a new memory device is important. The phase change memory (PCM) has been a promising candidate for next generation memory device. In this thesis, we developed PCM SPICE compact model using Verilog-A. There are two phase states of the PCM which can store the digital data. Different current pulses can generate heat levels to change phase of the PCM. The physical compact model discussed in this thesis includes the theories of Joule heating, thermal dissIpation and crystalline fraction, and it is accurate and predictive. As PCM technology is emerging, the predictive compact model can expedite the novel technology development.

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25

P, S. Arun Kumar. "Implementation of Image Compression Algorithm using Verilog with Area, Power and Timing Constraints." Thesis, 2009. http://ethesis.nitrkl.ac.in/1358/1/Thesis.pdf.

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Image compression is the application of Data compression on digital images. A fundamental shift in the image compression approach came after the Discrete Wavelet Transform (DWT) became popular. To overcome the inefficiencies in the JPEG standard and serve emerging areas of mobile and Internet communications, the new JPEG2000 standard has been developed based on the principles of DWT. An image compression algorithm was comprehended using Matlab code, and modified to perform better when implemented in hardware description language. Using Verilog HDL, the encoder for the image compression employing DWT was implemented. Detailed analysis for power, timing and area was done for Booth multiplier which forms the major building block in implementing DWT. The encoding technique exploits the zero tree structure present in the bitplanes to compress the transform coefficients.

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26

Alam, Md Monjur. "FPGA Based Binary Heap Implementation: With an Application to Web Based Anomaly Prioritization." 2015. http://scholarworks.gsu.edu/cs_theses/80.

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This thesis is devoted to the investigation of prioritization mechanism for web based anomaly detection. We propose a hardware realization of parallel binary heap as an application of web based anomaly prioritization. The heap is implemented in pipelined fashion in FPGA platform. The propose design takes O(1) time for all operations by ensuring minimum waiting time between two consecutive operations. We present the various design issues and hardware complexity. We explicitly analyze the design trade-offs of the proposed priority queue implementations.

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