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Filtering by: Alternative title ssim EC 815 Remove constraint Alternative title ssim: EC 815 Decade 2000-2009 Remove constraint Decade: 2000-2009 Degree Field Electrical and Computer Engineering Remove constraint Degree Field: Electrical and Computer Engineering

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  • A comparison and assessment of hybrid filter topologies and control algorithms

    Creator:
    Chen, Lijun
    Abstract:
    The harmonic problem in power systems is gaining more attention as incidences correlated with harmonics increase. Conventional passive filtering techniques for harmonic mitigation have inherent problems, and purely active filters have the disadvantages of higher costs and ratings. Hybrid active filters inherit the efficiency of passive filters and the improved...
    Resource Type:
    Masters Thesis
    Full Text:
    shown in Figure 2.1. With ea,eb,ec c distortion, the extracted harmonic signal no longer contains a 5th

  • Channel estimation and data detection for mobile MIMO OFDM systems

    Creator:
    Gao, Jie
    Abstract:
    Designing spectral efficient, high-speed wireless links that offer high quality- of-service and range capability has been a critical research and engineering challenge. In this thesis, we mainly address the complexity and performance issues of channel estimation and data detection in multiple-input multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems over...
    Resource Type:
    Dissertation
    Full Text:
    25 30 35 40 SNR(dB) A ve ra ge ( or e rg od ic ) C ap ac ity (b its /s ec /H z

  • Efficient power conversion interface circuits for energy harvesting applications

    Creator:
    Le, Triet T.
    Abstract:
    Harvesting energy from the environment for powering micro-power devices have been increasing in popularity. These types of devices can be used in embedded applications or in sensor networks where battery replacement is impractical. In this dissertation, different methods of energy harvesting from the environment are explored as alternative sources of...
    Resource Type:
    Dissertation
    Full Text:
    Free Space Distance (meter) R ec ei ve d P o w er ( d B m ) 450 μW 113 μW 28.1 μW