A comparison of unfiltered and filtered complex spreading sequences based on aperiodic correlation properties

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333) Pub Date : 1998-09-02 DOI:10.1109/ISSSTA.1998.722464

M. Jamil, L. Linde

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引用次数: 1

Abstract

This paper presents an overview and comparison of some of the known families of polyphase sequences for direct sequence spread spectrum multiple access (DS/SSMA) communication systems. A comparison between Zadoff and Chu (Frank and Zadoff 1962; Chu 1972) (ZC), Opperman and Vucetic (1997) (OV), and constant-envelope root-of-unity (CE-RU) filtered generalized chirp-like sequences is presented including the special class of analytical bandlimited complex (ABC) spreading sequences. The comparison is based on aperiodic correlation characteristics rather than traditionally discussed parameters like periodic, even, and odd correlations. The emphasis is based on practical considerations rather than rigorous mathematical derivation as found in literature. This paper is unique in the sense that it also presents the effects of filtering on polyphase sequences by using proper filtering methods.

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基于非周期相关特性的未滤波和滤波复扩展序列的比较

本文介绍了用于直接序列扩频多址(DS/SSMA)通信系统的几种已知多相序列的概况和比较。Zadoff和Chu的比较(Frank and Zadoff 1962;提出了Chu 1972) (ZC)、Opperman and Vucetic (1997) (OV)和恒包络单位根(CE-RU)滤波的广义类啁啾序列，其中包括一类特殊的解析限带复(ABC)扩展序列。这种比较是基于非周期相关特性，而不是传统上讨论的周期性、偶相关性和奇相关性等参数。重点是基于实际的考虑，而不是在文献中发现的严格的数学推导。本文的独特之处在于，它还通过使用适当的滤波方法来描述滤波对多相序列的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

1988 IEEE 5th International Symposium on Spread Spectrum Techniques and Applications - Proceedings. Spread Technology to Africa (Cat. No.98TH8333)

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