Design of a new squaring function for the Viterbi algorithm
Aria Eshraghi, Terri S. Fiez, T.R. Fischer, Kel Winters · NASA Technical Reports Server (NASA) · 1992
A new algorithm and hardware implementation of the Viterbi squaring function was developed. The use of an approximation squaring technique preserves the Viterbi performance as is demonstrated by Monte-Carlo simulations. Additionally, the 16-bit approximate squaring implementation is expected to require one-fourth the area and operate at three times the speed of the conventional squaring implementation.