Microcellular Direct-Sequence Spread-Spectrum Radio System Using N-Path RAKE Receiver. - Urs Grob; Arnold L. Welti; Ernst Zollinger; Roland Küng; Hans Kaufmann (IEEE J. Sel. Areas Commun., 1990)

Mean Time to Lose Lock for a Coherent Second-Order PN-Code Tracking Loop - The Singular Perturbation Approach. - Arnold L. Welti; Ben-Zion Bobrovsky (IEEE J. Sel. Areas Commun., 1990)

Third-order delay-locked loop: mean time to lose lock and optimal parameters. - Arnold L. Welti; Urs P. Bernhard (PIMRC, 1992)

Mean time to lose lock of the first-and second-order modified code tracking loop used in spread spectrum systems. - Arnold L. Welti; Urs P. Bernhard (Eur. Trans. Telecommun., 1994)

Mean time to lose lock for the "Langevin"-type delay-locked loop. - Arnold L. Welti; Ben-Zion Bobrovsky (IEEE Trans. Commun., 1994)

On optimal AGC structure for direct sequence spread spectrum PN-code tracking. - Arnold L. Welti; Ben-Zion Bobrovsky (IEEE Trans. Commun., 1994)

Third-order delay-locked loop: mean time to lose lock and optimal parameters. - Arnold L. Welti; Urs P. Bernhard; Ben-Zion Bobrovsky (IEEE Trans. Commun., 1995)

Stability requirements of oscillators used for synchronization loops in communication systems. - Arnold L. Welti; Urs P. Bernhard (Eur. Trans. Telecommun., 1996)