imported>Sammi Brie: Adding short description: "Sequence whose terms are complex roots of unity" (Shortdesc helper)

2021-10-05T19:02:05Z

Adding short description: "Sequence whose terms are complex roots of unity" (Shortdesc helper)

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{{Short description|Sequence whose terms are complex roots of unity}}
In mathematics, a '''polyphase sequence''' is a sequence whose terms are [[complex number|complex]] [[root of unity|roots of unity]]:

: <math>a_n = e^{i\frac{2\pi}{q}x_n} \, </math>

where ''x''<sub>''n''</sub> is an [[integer]].

Polyphase sequences are an important class of sequences and play important roles in synchronizing sequence design.

==See also==
*[[Zadoff–Chu sequence]]

==References==
*{{cite book |first=Pingzhi |last=Fan |first2=Michael |last2=Darnell |title=Sequence Design for Communications Applications |publisher=Research Studies Press |year=1996 |isbn=047196557X }}

[[Category:Sequences and series]]

Polyphase sequence - Revision history

imported>Sammi Brie: Adding short description: "Sequence whose terms are complex roots of unity" (Shortdesc helper)