Tim Davidson: Publications and Technical Reports

Last updated: October 2005.

Topics

• Communication Systems
  • Pulse shape design, including designs for CDMA and UWB
  • Linear block precoder design and multitone modulation
  • Multiple antenna systems and space-time coding
  • Wavelet-based multiplexing
  • Transceiver optimization for multiuser systems
  • Multi-user detection
  • Blind receivers for single and multiple user systems
• Signal Processing
  • FIR filter design
  • Filter bank, wavelet and multi-wavelet design
  • Adaptive filtering
  • Array signal processing
  • Decision fusion
  • Image compression
• Control
  • Low-order controller analysis and design
  • Model reduction
  • Non-central H-infinity control

Communication Systems

• Pulse shape design

  • Design of orthogonal pulse shapes for communications via semidefinite programming
  • Efficient design of waveforms for robust pulse amplitude modulation
  • Optimal pulse shapes for UWB
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• Linear block precoder design and multitone modulation

  • Design of robust redundant precoding filter banks with zero-forcing equalizers for unknown frequency-selective channels
  • Minimum BER block precoders for zero-forcing equalization
  • Asymptotically minimum bit error rate block precoders for minimum mean square error equalization
  • Design of block transceivers with decision feedback detection
  • On improving the BER performance of rate-adaptive transmission schemes
  • Optimal precoder for block transmission over frequency-selective fading channels
  • Design of filtered multitone (FMT) modulation systems
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• Multiple antenna systems and space-time coding

  • Design of linear dispersion codes: Some asymptotic guidelines and their implementation
  • Blind maxiumum likelihood decoding of orthogonal space-time block codes
  • Information lossless full-rate full-diversity space-time codes
  • Robust transmit eigen-beamforming
  • Non-Coherent MIMO Communication: Grassmannian Constellations and Efficient Detection

• Multiplexing based on wavelets

  • Wavelet packet division multiplexing and wavelet packet design under timing error effects
  • Performance of wavelet packet division multiplexing in impulsive and Gaussian noise
  • Branch hopping schemes for wavelet packet division multiplexing
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• Transceiver optimization for multiuser systems

  • Transceiver optimization for multiple access through ISI channels
  • Efficient design of vector broadcast systems
  • Transmit beamforming for physical layer multicasting
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• Multiuser detection

  • Quasi-maximum-likelihood multiuser detection using semi-definite relaxation with application to synchronous CDMA
  • BALM: A block alternating likelihood maximization approach to multiuser detection
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• Blind receivers

  • Blind equalization of constant modulus signals via convex optimization
  • Blind separation of BPSK signals using Newton's method on the Stiefel manifold
  • Blind adaptive space-time processing of cyclostationary signals
  • Blind maxiumum likelihood decoding of orthogonal space-time block codes
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Signal Processing

• FIR filter design

  • A "Primal" Positive Real Lemma for FIR systems
  • Linear matrix inequality formulation of spectral mask constraints with applications to FIR filter design
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• Design of filter banks, wavelet and multi-wavelet systems

  • Efficient design of oversampled NPR GDFT filter banks
  • Efficient design of orthonormal wavelet bases for signal representation
  • Design of interpolating biorthogonal multiwavelet systems with compact support
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• Adaptive filtering

  • Robust filtering via semidefinite programming with applications to target tracking
  • Constrained adaptive estimation using interior point optimization
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• Array signal processing

  • Towed array shape estimation using the sharpness concept. (Technical report)
  • Sidelobe cancellation using a beam space power minimisation approach. (Technical report)
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• Decision fusion

  • Blind adaptive decision fusion for distributed dectection
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• Image compression

  • Vector quantization of subband images using entropy-weighted mean square error
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Control

• Low-order controller analysis and design

  • Block bialternate sum and associated stability formulae
  • Generalized PI controllability
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• Model reduction

  • Balanced approximation can be optimal
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• Non-central H-infinity control

  • On non-central H-infinity control
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