Ternary-valued finite-difference time-domain method: asymptotic agreement with the Yee scheme through noise-shaped quantisation
Abstract I show that finite-difference time-domain (FDTD) dynamics can be reproduced using field variables restricted to the ternary alphabet −1, 0, +1. The integration is carried out by a state accumulator, while quantisation is done by a second-order noise-shaped encoder with a separate error register. The Courant nu...