IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Online ISSN : 1745-1337
Print ISSN : 0916-8508
Regular Section
Comments on “New Constructions of Perfect 8-QAM+/8-QAM Sequences”
Fanxin ZENG
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2015 Volume E98.A Issue 6 Pages 1334-1338

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Abstract

In Xu, Chen, and Liu's letter, two constructions producing perfect 8-QAM+/8-QAM sequences were given. We show that their constructions are equivalent to Zeng, et al.'s constructions under unit constant transform. Since the autocorrelation of a perfect sequence under unit constant transform is invariable, Xu, et al.'s constructions are the special case of Zeng, et al.'s constructions.

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© 2015 The Institute of Electronics, Information and Communication Engineers
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