Virginia Tech
    • Log in
    View Item 
    •   VTechWorks Home
    • ETDs: Virginia Tech Electronic Theses and Dissertations
    • Masters Theses
    • View Item
    •   VTechWorks Home
    • ETDs: Virginia Tech Electronic Theses and Dissertations
    • Masters Theses
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Simulation and implementation of fixed-point digital filter structures

    Thumbnail
    View/Open
    LD5655.V855_1995.B355.pdf (3.398Mb)
    Downloads: 212
    Date
    1995-09-26
    Author
    Bailey, Daniel A.
    Metadata
    Show full item record
    Abstract
    The purpose of this research is to develop a fixed-point arithmetic model based on a common general purpose Digital Signal Processor (DSP). A detailed non-linear model is developed to emulate the convergent (un-biased) rounding process performed by the Motorola DSP56002 fixed-point DSP. This model is incorporated into several different filter structures and compared to the linear stochastic simulation and the actual hardware implementation. It turns out that the convergent rounding operation has an insignificant effect on the overall roundoff noise power. The Direct Form, Section Optimal and MA Lattice forms are studied. F or these structures, Matlab routines are developed to automate the process of fixed-point scaling and DSP56002 code generation. Each structure's non-linear simulation is validated using two filter examples. The scaling and simulation routines allow the filter designer to investigate the finite word length performance of various structures, scaling norms, overflow safety factors, and word lengths to determine the best filter parameters prior to hardware implementation.
    URI
    http://hdl.handle.net/10919/43697
    Collections
    • Masters Theses [18654]

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us
     

     

    VTechWorks

    AboutPoliciesHelp

    Browse

    All of VTechWorksCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    Log inRegister

    Statistics

    View Usage Statistics

    If you believe that any material in VTechWorks should be removed, please see our policy and procedure for Requesting that Material be Amended or Removed. All takedown requests will be promptly acknowledged and investigated.

    Virginia Tech | University Libraries | Contact Us