80 citations · 80 across the 4 of their papers we have counts for
4 papers
Finite-range Lattice Momentum Operators for Quantum Field Theory
Jan C Olivier, Etienne Barnard
We propose a Z-transform framework for the analysis and synthesis of finite range lattice momentum operators in quantum field theory. In this formulation, translation-invariant lat…
Hidden Markov Model Decoding for LDPC Codes
Jan C Olivier, Etienne Barnard
The paper proposes an iterative Hidden Markov Model (HMM) for decoding a Low Density Parity Check (LDPC) code. It is demonstrated that a first-order HMM provides a natural framewor…
Minimum Phase Linear Antenna Array Design
Jan C Olivier, Etienne Barnard
The paper considers the design of minimum phase discrete linear arrays. The paper introduces recent advances for the design of minimum phase Finite Impulse Response filters, as app…
Detection of phase singularities with a Shack-Hartmann wavefront sensor
Mingzhou Chen, Filippus S. Roux, Jan C. Olivier
While adaptive optical systems are able to remove moderate wavefront distortions in scintillated optical beams, phase singularities that appear in strongly scintillated beams can s…