Author_Institution :
Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Seoul, South Korea
Abstract :
For the original article see ibid., vol.25, no.20, p.1325-6 (1989) and for comments on the article see ibid., vol.27, no.20, p.1848 (1991). The authors reply to the comments by Zhang and Zhu, pointing out that the commenters have misunderstood the authors´ approach. Hence an explanation of their approach is given.