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    Practical Considerations for Radar Embedded Communication

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    Biggs_ku_0099M_10460_DATA_1.pdf (1.957Mb)
    Issue Date
    2009-07-01
    Author
    Biggs, Casey
    Publisher
    University of Kansas
    Format
    107 pages
    Type
    Thesis
    Degree Level
    M.S.
    Discipline
    Electrical Engineering & Computer Science
    Rights
    This item is protected by copyright and unless otherwise specified the copyright of this thesis/dissertation is held by the author.
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    Abstract
    This thesis expands on the previous work done in the area of intra-pulse radar embedded communication by examining some of the practical aspects of the waveform design. Communication waveform mismatches between the tag and receiver due to multipath distortion, sampling rate differences and using different lengths for the radar waveform are explored for each of the three previously developed design methods. The Dominant-Projection approach is shown to be robust to most mismatches while the other two approaches significantly degrade or fail with any mismatch. Lack of synchronization between the receiver and tag is shown to increase the occurrence of symbol errors, since the receiver is required to search over multiple samples for the communication waveform sent by the tag. Attempts to reduce the number of errors caused by the lack of synchronization are also made, first by taking a three sample average of the filter output and second by generating waveforms with lower local cross-correlation, with both attempts shown to be unsuccessful. Other attempts are also made to improve the waveform design. It is shown that temporal expansion can be used to either improve symbol error rate or reduce the amount of bandwidth expansion required. A rule-of-thumb is developed for the bandwidth expansion versus temporal expansion trade-off. It is also shown that more of the dominant space can be projected out with Dominant-Projection to reduce the probability of symbol error, but this comes at the cost of being more susceptible to being detected by an intercept receiver.
    URI
    http://hdl.handle.net/1808/5450
    Collections
    • Engineering Dissertations and Theses [1055]
    • Theses [3827]

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    Contact KU ScholarWorks
    785-864-8983
    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    785-864-8983

    KU Libraries
    1425 Jayhawk Blvd
    Lawrence, KS 66045
    Image Credits
     

     

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