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Analog and Digital Array Processor Realization of a 2D IIR Beam Filter for Wireless Applications

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2012, Master of Science in Engineering, University of Akron, Electrical Engineering.
A broadband digital beamforming algorithm is proposed for directional filtering of temporally-broadband bandpass space-time (ST) plane-waves (PWs) at radio frequencies (RFs). The enhancement of desired waves, as well as rejection of undesired interfering PWs, is simulated. A massively-parallel synchronous and asynchronous array architecture is proposed for the real-time implementation of 2nd-order two-dimensional (2D) infinite impulse response (IIR) spatially-bandpass (SBP) beam filters having potential applications in broadband beamforming of temporally down-converted RF signals. The higher speed of operation and potentially reduced power consumption of the asynchronous architecture in comparison to the conventional synchronous hardware have emerging applications in radio-astronomy, radar, navigation, space science, cognitive radio and wireless communications. Further, the bit error rate (BER) performance improvement along with the reduced computational complexity of these digital filters over digital phased array feed (PAF) beamformer is provided. A nominal BER versus signal-to-interference ratio (SIR) gain of 2-3 dB at approximately half the number of parallel multipliers compared to digital PAF, is observed. A novel discrete-space continuous-time (DSCT) analog circuit implementation of the 2D IIR SBP beam filter using ideal operational amplifiers is also proposed.
Arjuna Madanayake, Dr. (Advisor)
Hamid Bahrami, Dr. (Committee Member)
S. I. Hariharan, Dr. (Committee Member)
128 p.

Recommended Citations

Citations

  • Joshi, R. M. (2012). Analog and Digital Array Processor Realization of a 2D IIR Beam Filter for Wireless Applications [Master's thesis, University of Akron]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=akron1326776749

    APA Style (7th edition)

  • Joshi, Rimesh. Analog and Digital Array Processor Realization of a 2D IIR Beam Filter for Wireless Applications. 2012. University of Akron, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=akron1326776749.

    MLA Style (8th edition)

  • Joshi, Rimesh. "Analog and Digital Array Processor Realization of a 2D IIR Beam Filter for Wireless Applications." Master's thesis, University of Akron, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=akron1326776749

    Chicago Manual of Style (17th edition)